Submarine Warfare

CONTENTS

ILLUSTRATIONS

PART I — CHAPTER I INTRODUCTORY — CHAPTER II THE PLACE OF THE SUBMARINE IN WARFARE — CHAPTER III THE MORALITY OF SUBMARINE WARFARE — CHAPTER IV THE MECHANISM OF THE SUBMARINE, AND SUBMARINES OF THE FUTURE — 1. Submarines with no Floatability when Submerged. — 2. Submarines Possessing Floatability when submerged. — Immersion by Screws Mounted on a vertical Shaft. — Immersion by Horizontal Rudders. — Motive Power. — Propulsion of the Surface. — Armament. — Safety and Habitability. — Vision When Submerged. — CHAPTER V THE ROMANCE OF UNDER-WATER WARFARE — CHAPTER VI THE MORAL INFLUENCE OF UNDER-WATER WARFARE — CHAPTER VII THE SUBMARINE IN ACTION — French Submarines. — CHAPTER VIII THE ANTIDOTE TO SUBMARINES

“The submarine craft is a miracle of ingenuity though Nelson and his hearts of oak, fighting only on deck, in God’s free air, and with ‘the meteor flag of England’ fluttering overhead, would have loathed and scorned her burglarious, area-sneak dodges down below.”

In modern under-water warfare two weapons are employed, the Mine and the Torpedo. Both are explosive devices, but whilst mines are stationary, torpedoes are endowed with the power of locomotion in some form or another.

The modern submarine boat is in reality a diving torpedo-boat and like all other torpedo craft of the present day its function is to discharge automobile torpedoes.

The submarine boat is sometimes said to be the child of the torpedo-boat. As a matter of fact the earliest known torpedo vessel was designed to do its work under water.

In 1776 an attack was made on the English frigate H.M.S. Eagle, and in 1777 on the English man-of-war H.M.S. Cerberus by a submarine vessel invented by David Bushnell and provided with “torpedoes.” 2Although no injury was inflicted on these ships, three of the crew of a prize schooner astern of the Cerberus, in hauling one of Bushnell’s drifting torpedoes on board, were killed by its explosion.

A few years afterwards Robert Fulton occupied himself with torpedoes, and like Bushnell he came to the conclusion that a submarine boat was the best suited for the discharge of his weapons. In time of peace Fulton showed that his torpedoes could sink ships, but in actual warfare he failed to accomplish the destruction of any craft. For a while torpedo warfare received but scant attention, but on the outbreak of the American Civil War the mine and the torpedo “leapt at one bound from the condition of theory and experiment to become accepted once for all as practical and valuable factors for offence and defence.”

At this period also it is to be noted that the torpedoists considered the under-water vessel the most favourable method of utilising the spar-torpedo, the weapon of the day. Both Federals and Confederates paid much attention to submarine navigation, and success attended the efforts of the latter, for on February 17, 1864, the Federal frigate Housatonic was sunk off Charleston by a submarine boat manned by the Confederates and armed with a spar-torpedo. This is the sole occasion on which an under-water vessel has ever succeeded in sinking a hostile craft in actual warfare, and even then it was being navigated in the awash condition, and not completely submerged.

3The introduction of the automobile or fish torpedo led to the building of above-water torpedo vessels by all the great Powers. The idea of discharging this weapon from a submarine boat occupied the attention of numerous inventors, amongst others of Mr. Nordenfelt, of machine-gun fame.

Greece and Turkey both bought Nordenfelt submarine boats, but although they achieved a certain amount of success and were certainly the best specimens of under-water fighting vessels extant, they failed to receive wider recognition owing to their serious disadvantages.

The possibility of utilising the electric accumulator revived the hopes of the advocates of submarine navigation, and towards the end of the eighties, France added the first under-water torpedo-boat to her navy: since then her interest in the subject has never abated, and although it would be unfair to attribute to all French naval men and officials the ideas as to the superiority of the torpedo vessel to the ironclad put forward by a certain class of writers, it cannot be denied that the question of under-water warfare has attracted more attention in France than in any other country. A few years after the launch of the first French submarine, the Gymnote, the U.S. Government purchased the Holland, and in the same year ordered six more Hollands of an improved type.

When Greece and Turkey purchased Nordenfelt boats there were not wanting those who declared 4that Great Britain should also add under-water vessels to her navy. The official view was however hostile to such craft. In the early part of 1900, Viscount Goschen said that while close attention had been given by the Admiralty to the subject of submarine boats, they considered that even if the practical difficulties attending their use could be overcome, they would seem to be weapons for “maritime Powers on the defensive.” It seemed to him that the reply to this weapon must be looked for in other ways than in building submarine boats ourselves, for it was clear that one submarine boat could not fight another. It would seem from this that the Admiralty had no very high opinion of the submarine as an offensive weapon. However this may be, an order was placed in the autumn of 1900 with Messrs. Vickers Sons and Maxim for five of the newest “Holland” boats, they being the agents in Europe for the Holland Torpedo-boat Company of New York, and this being the only type available. Not till the statement of the First Lord was published on March 1, 1901, was the fact of the ordering of these boats made public; the secret had indeed been well kept.

He would be a bold man who would prophesy how the question of submarine navigation will stand fifty years hence. Some declare that the under-water vessel will go the way of the dynamite gun, the circular battleship, the aerial torpedo and other inventions; others affirm that the warfare 5of the future will take place neither on land nor on the seas, but in the air and beneath the waves. We shall see what we shall see. At present we would prefer to go no further than the cautious statement of the First Lord. “What the future value of these boats may be in naval warfare can only be a matter of conjecture. The experiments with these boats will assist the Admiralty in assessing their true value. The question of their employment must be studied, and all developments in their mechanism carefully watched by this country.”

“Drake would have understood Trafalgar. Neither Drake nor Nelson could understand a modern naval action.”

“Competent authorities hold that the submersible torpedo-boat is the vessel of the future rather than either the existing type, or the ‘Destroyer’” (Excubitor in the Fortnightly Review for August, 1901).

“It is not only the unstable opinions of experts, liable to sudden change, which makes the forecast of future naval war difficult; it is that the progress of invention may be, for all we know, undermining the whole position by disturbing the balance which creates existing warship design” (the late Vice-Admiral P. H. Colomb).

“Conservatism has thus far delayed the adoption of a most valuable offensive and defensive weapon, not because success was ever proved to be unattainable, but because some vessels built by inexperienced inventors happened to be failures” (Mr. J. P. Holland).

“In the dawn of the twentieth century there has entered into the history of the world’s navies a class of vessel which is probably destined to revolutionise, eventually, the whole system of maritime construction. The problem of submarine navigation, in a limited sense at least, has been solved” (Lieutenant G. E. Armstrong).

“Most torpedo destruction has been done with a bag of explosive tied to the end of a pole, and the submarine boat will permit you to get closer to the enemy with a bigger bag of explosive and with less damage to the pole. You have all the advantages of attack with almost absolute safety to the torpedo-boat itself.”

7

THE FIRST SUBMARINE TO FLY THE WHITE ENSIGN.

(By permission of the Admiralty and Messrs. Vickers, Sons, and Maxim.)

9At the present time opinion is divided as to the part that the submarine boat is likely to play in the naval warfare of the future. Those who have expressed themselves on the subject may be roughly divided into three classes.

1. Those who have little or no faith in submarines.

2. Those who believe that submarines will revolutionise warfare, ocean locomotion, marine industries, &c., and that an epoch may come in which merchantmen will alone sail the ocean and all the warships will be submarines or submersibles.

3. Those who recognise that the submarine boat of to-day is a great improvement on the boats of twenty years ago; who believe that although at present it suffers from grave defects, its development will continue, and who are of opinion that it will find useful spheres of action in time of war.

Much of the adverse criticism which the “submarine boat” has had to encounter has been due to the popular belief that this type of craft was intended to do its work below the surface of the water. As it is impossible at present to see beneath the waves, many critics have declared the submarine to be a perfectly useless fighting vessel. It cannot be too often asserted, for the sake of overcoming prejudice, that the proper place of the submarine is at the surface, and that she only goes below for short intervals. This is now universally recognised by constructors of such craft, which it might be more correct to term “submersibles” 10or “diving torpedo-boats.” So far back as 1886 Mr. Nordenfelt remarked, “It is impossible to think of a submarine boat that actually manœuvres and does its work under water. I gave that up from the very commencement.”

By the term “submarine” we mean to imply a vessel capable of manœuvring on the surface like an ordinary torpedo boat, of running awash with her conning tower alone above water to enable her to be steered, and of totally immersing herself for short periods either to escape detection, avoid the fire of the enemy, or fire torpedoes.

The history of the submarine bears a curious resemblance to that of the torpedo and the torpedo vessel in many particulars. All three have been declared to be the weapons of the weaker power and of no possible value to a nation which must maintain the command of the seas. The first Whitehead torpedoes were certainly slow and erratic; now they are capable of running within a few inches of the required depth at a speed of over 37 miles an hour for a range up to 2,000 yards, and hitting the point aimed at with almost the same precision as a gun.

In spite of the sneers of fossilised officials, Great Britain adopted the torpedo-boat, and in the process of time evolved the destroyer, an offensive weapon of no mean value, and a type of craft which some have declared to be the fighting vessel of the future. She will soon be in the possession of nine under-water vessels, and it may 11be that the submarines of twenty years hence will bear the same resemblance to those of to-day, as the Albatross does to the Lightning of 1877.

The very first submarine to figure in actual warfare was the boat invented by David Bushnell. His attempt to blow up the British frigate Eagle failed, mainly owing to the incapacity of the operator, Sergeant Ezra Lee. Fulton, although he blew up several old hulks in time of peace, was afforded no opportunity of testing the capabilities of his vessel in actual warfare.

U.S. SUBMARINE “SHARK” ON THE STOCKS.

During the American Civil War there occurred the famous incident of the destruction of the Housatonic by the Confederate diving torpedo-boat David—the only occasion on which a submarine 12boat has succeeded in inflicting injury on a hostile vessel in a naval action. Though many lives were lost in the David, this would not have occurred had the most ordinary precautions been taken.

On February 5, 1886, Mr. Nordenfelt read a paper before the Royal United Service Institution on his Submarine Boats; in the discussion that followed many eminent naval authorities took part, and the following are extracts taken from their speeches on this occasion:—

“My opinion is that all torpedo-boats should be submarine boats” (Admiral Arthur).

“With the cupola above water the submarine boat would prove a very formidable means of attack” (Admiral Sir Astley Cooper Key).

“Mr. Nordenfelt has done much towards solving a problem which is likely to be of great importance in future naval operations” (Vice-Admiral H.R.H. Duke of Edinburgh).

“I think Mr. Nordenfelt is to be congratulated on having made an enormous step forward, and one which I am sure has a great future before it” (Admiral Selwyn).

“If you want to economically defend a port it is better to have a boat that does not show at all. The moral effect of this boat would be enormous, and I am perfectly certain that foreign war vessels would not lay off a port to intercept outward- and homeward-bound vessels if they knew that there was a submarine vessel inside that could come out without being seen” (Major-General Hardinge Stewart).

“As far as practicability for warfare is concerned this submarine boat (the Nordenfelt) is pretty well accepted by the profession.... Therefore as a craft not altogether wholly submerged, but just a boat awash for coast defence, 13and also for the attack of ships at sea, and especially in heavy weather, when the fast torpedo boats cannot act, I believe the vessel will be found of great practical and reliable service” (Major-General Sir Andrew Clarke).

The Nordenfelt boats, as will be seen in Chapter XV, failed to come up to the high expectations that had been formed of them, and the British Admiralty considered themselves relieved from the necessity of taking up the subject of submarine navigation.

In 1888 France added the first submarine (the Gymnote) to her navy, and proceeded to lay down a certain number of under-water craft yearly. In 1900 the United States Government bought the Holland, and in many quarters the opinion was held that the Admiralty should carefully investigate the whole question of submarine warfare.

The official mind thought otherwise, and expressed itself thus: “We know all about submarines: they are the weapons of the weaker power; they are very poor fighting machines, and can be of no possible use to the Mistress of the Seas. We are very grateful to the Governments of France and the United States for expending so much money in experimenting with these craft, and in allowing us to buy experience for nothing; if ever they produce a vessel which we consider satisfactory we shall begin to build, but not till then.” The official mind was inclined to apply to submarine warfare, the words used by Earl St. Vincent in reference to Fulton’s torpedo warfare—“A 14mode of war which we who command the seas do not want, and which, if successful, would deprive us of it.”

This council of sitting still and watching others experiment did not commend itself to many thinking people who saw that the French and the Americans were every year improving their vessels and converting them little by little from expensive toys into fighting machines with which we should have to reckon sooner or later. Even the Engineer, never enthusiastic about submarine boats, went so far as to remark that “the day for pooh-poohing them is past.”

The anti-submarine party replied that the French and Americans were suffering from hallucinations; that the submarine boat was of no value except for purposes of defence, as its range of action was very limited. The advent of the Holland and the Narval, each capable of making long journeys, proved the fallacy of this view.

Shifting their ground they said that the submarine would be of no use as a weapon of offence, because it was blind; that it would never be able to fire a torpedo at a moving vessel whilst itself in motion; that its speed was so small that big ships could always avoid it; that it would be unable to remain under water for long, as the effect of “potted air” on the crew would be disastrous; and that its lack of longitudinal stability was a fatal drawback to its employment in action.

The behaviour of the Gustave Zédé, the Narval, 15and the Holland in manœuvres, during the course of which they have all fired fish torpedoes whilst moving, which have hit targets, again showed that such arguments could not hold water.

Now whilst it is one thing to say that the submarine boat is a useless weapon to-day, it is quite another to prophecy that it will never be of any value to a navy whose ships are intended to act on the offensive.

The introduction of gunpowder; of steam; of the screw-propeller; of iron-built ships; of high-pressure engines; of rifled ordnance; of explosive shells; of armour plating; of twin-screws; of breech-loading guns; of steel-built ships; of the locomotive torpedo; of electricity on shipboard; of quick-firing and machine guns; of collapsible boats; of wireless telegraphy; of turbine vessels; of devices for coaling ships at sea; of magazine-rifles, &c., &c., have been successively ridiculed by those responsible for the condition of the British Navy.

Officialism is, and always has been, a foe to inventive progress, and the official mind still seems incapable of realising that invention is a plant of slow growth; that improvements or innovations when first mooted do not necessarily represent their final form, and that all the great advances and revolutions in the past in the world of science, invention, and discovery have sprung from small beginnings which have grown gradually and slowly until they forced upon themselves the recognition that was their due.

16Faraday, when asked by “practical people” the use of any of his experimental researches, would reply, “What is the use of a baby?” An invention resembles a baby, in that it needs to be carefully watched, tended, and cared for in its initial stages if ever it is to be of any value in the world.

We all remember the gentleman who said that he would eat the first steamboat that crossed the Atlantic; the Quarterly Reviewer who wrote with reference to the proposal to build a line to Woolwich that “he should as soon expect the people of Woolwich to suffer themselves to be fired off by one of Congreve’s ricochet rockets as trust themselves to the mercy of a high-pressure steam engine travelling at the awful speed of eighteen to twenty miles an hour”; and the wiseacres who pooh-poohed the electric telegraph and telephone, the electric light, the electric car, the pneumatic-tyred bicycle, and many other inventions which have come into general use.

Granting, as we do, that the submarine is at present in a very inefficient stage of its existence, the necessity for experiment in view of the march of science during the past century is obvious. What should we say of a professor who pleaded that his experiments were a waste of time and money, as he could arrive at his end quite as well by simply reading what other professors in foreign countries were doing?

One cannot too often insist on the fact that it is only by actual experiment that useful facts are arrived at, and that in the investigation of new 17devices more can, as a rule, be learnt from an experiment carefully arranged and personally carried out than from the reading of voluminous reports of the work of others.

LAUNCH OF U.S. SUBMARINE “SHARK.”

Rear-Admiral C. C. P. FitzGerald, in an article in the Empire Review for February, 1901, on “Our Naval Strength,” referring to submarines said:—“It seems a little risky to hold our hand altogether. We are said to be ‘watching,’ and no doubt it will be very convenient if we can allow others to spend their time and money on experiments and then just cut in at the right moment when the submarine boat has established itself as a practicable engine of warfare and build as many as we want with the unrivalled 18resources which we are so fond of talking about. But it should be remembered that secrets are better kept abroad than they are in England and that a new mechanical industry always takes some time to develop and to train the special workmen essential to its prosecution.”

Mr. Arnold Forster has himself said that an ounce of practice is worth a ton of theory, and it would be well if all officials thought as he does. There is far too little experimental work and practical trial of novel ideas both in the Army and the Navy. If we were never going to use our soldiers or our ships in actual warfare it would be both economical and prudent to wait until other nations had perfected inventions before adopting them ourselves. In this case we should never make any progress at all, for the reason that no improvement is final, and that the fleet of to-day is a totally different thing from the fleet of fifty years ago.

Si vis pacem para bellum. The essence of maritime war is, it has been well said, its suddenness, and a day gained in striking the first blow may make the difference between the fall of an empire and the annihilation of the enemy. To wait to consider to what use we can put submarine vessels and to postpone the question of discovering the most effective method of destroying the boats of the enemy until war breaks out is a suicidal policy, which, however, seemed for many years to appeal to a “Government of Amateurs.”

Had there been more experimental work before 19the outbreak of the Boer War our army would have probably finished its task sooner and with less loss of life. Questions such as the employment of heavy field ordnance, of telescopic sights, of shields for guns and rifles, of motors, of electricity, &c., will have to be considered when the war is over, but they should have received attention before hostilities commenced. If every nation would agree to maintain the status quo and to make no effort to keep its navy and its army abreast of the advances of modern scientific progress and invention, then the policy of our Admiralty and War Office would be excellently suited to our needs. As it is, however, Germany, France, the United States, Russia, and Japan are much more ready to improve their services than is Great Britain, whose officials, for the sake of peace and quiet, snub the inventor and smother their consciences by repeating that all is well in our army and navy. Only when great pressure is brought to bear on them will they stir themselves. Admiral Sir E. Fremantle recently suggested that there ought to be a committee on inventions always sitting, and Mr. Laird Clowes has appealed for readier official interest in certain recent inventions.

The experiments with the British submarines must be carefully watched in order that we may arrive at a well-reasoned opinion concerning their future. It may be that it will be decided that for our purposes a means of destroying the submarines of the enemy will be of more value than the boats themselves. On the other hand, the conclusion may be reached that 20for certain purposes this type of craft will be a useful adjunct to our fleet. Whatever the decision may be it is quite certain that the submarine boat will continue to receive improvements at the hands of inventors, and that as practical applications have been found for the Röntgen Rays and wireless telegraphy, so uses will be found for the submarine of the future which may be as great an improvement on the submarine of to-day as the Deutschland is over the Savannah, the first steam-packet that ever crossed the Atlantic.

Those who discuss submarine navigation as if it were quite a new development are apt to forget that the earliest use of the torpedo was in an under-water vessel. Bushnell and Fulton, no less than the Confederates of a later day, saw that their best chance of success lay in attacking by stealth, and though the modern Whitehead is a very different weapon to the cases of explosive used by Bushnell and Fulton, or the spar-torpedo employed by the Confederates in their Davids, there are still the same advantages to be gained by a submarine attack.

Whilst the torpedoists of the extreme school claim that torpedo vessels can attack with a very good chance of success in daylight, the more general opinion is that they will he utilised chiefly under cover of darkness, and that the destroyer and the smaller torpedo-boat would stand no chance in broad daylight against the tremendous artillery fire to which they would be subjected by the battleships singled out for attack. Even at night, however, 21the flare from her funnels might betray the destroyer.

A writer in the United Service Gazette a few years ago remarked that the development of quick-firing guns brought about by the increase in the offensive and defensive power of swift torpedo-boats threatened ere long to completely abolish the use of surface torpedo-boats in marine warfare unless the latter could be rendered proof against those terribly destructive weapons, the new rapid-firing guns of large calibre. To secure this invulnerability by the aid of armour would destroy the speed and hardiness of the torpedo-boats, and it had long been the opinion amongst naval officers, more especially on the Continent and in America, that if the torpedo is to be used for successful attack it would have to be discharged from a vessel which was rendered invulnerable by being totally submerged—that is to say, from a submarine torpedo-boat.

The submarine boat of the future will be a diving torpedo-boat capable of manœuvring (1) on the surface, (2) awash with conning tower only above the water, and (3) beneath the waves.

It will have two methods of propulsion, one for the surface, one for beneath the water, and its mode of operation will be to steam on the surface until it is within sighting range; to then take in enough water ballast to bring it to the “awash” condition, thus greatly reducing the chances of being hit; and, having approached within a certain distance of the enemy, to sink entirely beneath the 22waves, rising once probably for a second to take final bearings before firing its torpedo.

The nine vessels ordered for our navy are really diving torpedo-boats and are not intended for use under water except for very short intervals of time. The submarine of to-day bears a close resemblance to the torpedo-boat in the early stages of its development and appears to be of more value to a country that is desirous of defending its coasts than to one which must maintain the command of the seas.

There are signs, however, that in the process of its evolution the submarine will go through many of the same stages as did the torpedo vessel, and will develop into an offensive weapon which England will be unable any longer to despise.

That a Holland, a Narval, or a Gustave Zédé is as formidable an adversary as an Albatross or an Express few would claim, but the last word has not yet been said on submarine navigation, and the future may be expected to bring about many changes.

For purposes of coast defence the submarine may be said to have fairly established its value. The knowledge that such craft were “in being” would have a deterrent influence upon an admiral attacking a fort or contemplating a blockade, and in all probability the days of close blockade are over.

As a weapon of offence the utility of the submarine boat is not so clearly established. It is 23true that some of the French boats have operated at a considerable distance from their base, but its speed, its seaworthiness, and range of action must be improved before the submarine can be regarded as a useful adjunct to a fleet acting on the offensive. The radius of action at the surface of the newest Hollands is only 400 knots at 8 knots per hour, and submerged the speed is 7 knots for a four hours’ run.

THE “FULTON” RUNNING ON THE SURFACE.

Still even now there are uses to which a submarine boat might be put, such, for instance, as the attack of ships shut up in a blockaded harbour, or of vessels in port; the destruction of a mine field so that ships may enter in safety; the cutting and repairing of cables; the forcing an entrance through a boom, &c.

24The late Captain Cairnes, in his book “The Coming Waterloo,” enunciated the theory that even if the British fleet destroyed the French fleet it would still be necessary for us to land an army on French soil in order to bring hostilities to a conclusion. In that case submarine boats would probably be employed, for some of the purposes above enumerated.

It has been suggested that small diving torpedo-boats might be carried on battleships, and it is said that the United States have been experimenting with vessels of this kind. The difficulties of hoisting such vessels in and out of a big ship are, however, considerable, and few naval officers favour this idea. Perhaps a special “submarine depot ship” somewhat similar to the Vulcan might be useful for conveying submarines to foreign waters.

In the opinion of many naval experts most of the naval actions of the future will be virtually decided quite outside the reach of any torpedo yet designed, and at ranges almost beyond the ken of unaided human vision, owing to the fact that with the breech-loading gun of to-day accurate practice can be made at very long range. The battle of Manila was fought and decided at a distance varying from 5,600 to 2,000 yards, and the battle of Santiago from 5,000 to 1,600. A naval battle of the future, according to a distinguished German admiral, if both adversaries are determined and energetic, will resemble a conflict between two 25stags, which in a moment of fury rush upon one another, entangling their antlers, and, in the end of ends, destroying one another. Or if the enemies are less determined, a naval battle will resemble a contest of athletes, the combatants moving backwards and forwards in serpentine lines; both will keep up fire from a great distance until neither has enough ammunition left to strike a decisive blow.

In the opinion of the late M. Jean de Bloch the warfare of the future will resemble the latter picture, but it will be remembered that this writer in his book, “Is War now Impossible?” laid it down that the bayonet would never be used, as troops would be unable to cross the terrible bullet-swept zone and thus come into personal contact with the enemy. The Boer War has proved on the contrary that the bayonet is still a valuable weapon, and that the bravery of the soldier, combined with artillery fire, will enable him to use it with good effect in spite of the modern rifle.

What the bayonet is in military, that the submarine is in naval warfare. The increasing range of rifle and cannon enable both combatants, if well entrenched, to blaze away at one another and do very little damage, and the necessity therefore arises, if a definite conclusion is to be reached, for some sharp and sudden blow to be delivered at close quarters that shall cause the enemy to evacuate his position and beat a hasty retreat. A bayonet charge is a desperate affair no doubt, but 26owing to the modern art of entrenchment, recourse must be had to it if the enemy is to be shifted.

In much the same way a submarine attack will be ordered when firing at long ranges has had no effect. There will be great risks, but the chances of a successful attack will be sufficient to warrant its being tried.

In conclusion the following extract from a recent article in the Engineer—a journal which has always regarded the submarine with suspicion—may be quoted: “We must not shut our eyes to the fact that the semi-submarine boat may be a very dangerous foe. Years have passed since we pointed this out. It seems to be admitted that a fast torpedo-boat can get within say a mile of an enemy without certainty of destruction. Indeed, up to that she is fairly safe. If now, that point reached, she descends say five feet below the surface, leaving a conning tower just level with the water, she can be steered, and the chances that she will be sunk by her enemies are very small. The five feet of water above her would deflect all projectiles from machine guns. She would have to get very close up to be hit hard even by heavier metal, and the little conning tower at the water level would be a very difficult matter to strike. A fast vessel operating thus a fleur d’eau would be no despicable enemy. And it is in this direction we think that submarine attacks will be developed with the best chance of success.”

“War’s a brain-spattering, wind-pipe slitting art. It is not to be ‘humanised,’ but only abolished one fine day when nations have cut their wisdom teeth.”

“Inter arma silent leges.”

“All’s fair in love and war.”

“The sea fights of the future, with improved ships, guns, and range-finders, may be fought at ranges almost beyond the ken of unaided human vision. It is to be hoped that before that time arrives the progress of civilisation, intellect, and humanity will have consigned all weapons of war to the museum of the antiquary, and that other methods than war may have been discovered for preserving the peace and virility of men and nations.”

In the early years of the nineteenth century the writer of an article in the Naval Chronicle, devoted to a consideration of Fulton’s schemes, stigmatised his torpedoes and submarine boats as “revolting to every noble principle,” their projector as a “crafty murderous ruffian,” and his patrons as “openly stooping from their lofty stations to superintend the construction of such detestable machines, that promised destruction to maritime establishments.” He went on to protest against the policy of encouraging 28inventions that tended to innovate on the triumphant system of naval warfare in which England excelled, and he concluded thus:

“Guy Fawkes is got afloat, battles in future may be fought under water; our invincible ships of the line may give place to horrible and unknown structures, our projects to catamarans, our pilots to divers, our hardy, dauntless tars to submarine assassins; coffers, rockets, catamarans, infernals, water-worms, and fire-devils! How honourable! how fascinating is such an enumeration! How glorious, how fortunate for Britain are discoveries like these! How worthy of being adopted by a people made wanton by naval victories, by a nation whose empire are the seas!”

It is quite evident that even in this “so-called Twentieth Century” there exist many Britons who in their heart of heart agree with this writer, and who cherish the idea, though they may not openly express it, that there is something mean and underhanded, something dishonourable and “un-English” in all methods of under-water warfare. The Englishman prides himself on being a lover of fair play, and so long as the odds are more or less equal, he is ready to enjoy any contest or sport. The average Englishman is neither a hot-headed Jingoist, nor a peace-at-any-price humanitarian; he regards wars as unfortunate necessities of modern civilisation, and he likes to see them waged fairly and squarely, each side observing the rules of the game. As regards warfare on land, it must be confessed that he has 29had to correct some of his ideas since the Boer war. He would have preferred the enemy to come out into the open and fight like men. Instead of this, they took every precaution to avoid being seen, and our army found that it had to face an invisible foe. From the Boers we have learnt the lesson of the value of cover and entrenchments, and now officers and men, however much they may dislike it, are forced to seek and utilise cover whenever possible, making it their aim to hit their opponents and to avoid being hit themselves.

In naval warfare we have had no opportunity of learning our lesson in the light of actual experience, for we have had no big battle on the seas since Trafalgar, and our naval supremacy has not been seriously threatened since 1805; it is thus possible for men to hold different opinions as to the value of submarine fighting, and we consequently find that there are numerous people who, whilst they would not go so far as to declare mines, torpedoes, and submarine boats unlawful, yet consider them as methods better fitted to the requirements of other nations than to those of the Mistress of the Seas.

Modern submarine warfare was introduced by two Americans, David Bushnell and Robert Fulton, and forced itself into prominence during the American War of Independence. The spar-torpedo originated in America; the Whitehead torpedo was first adopted 30by the Austrian Government, and Norway, Sweden, Denmark, France, and Austria all began to build torpedo boats before Great Britain condescended to add them to her Navy.

As to submarine vessels Greece and Turkey purchased Nordenfelt boats in 1887. France built her first boat in 1888, and the United States purchased her first submarine, the Holland, in 1900. Great Britain, then, has followed instead of leading other nations in the matter of mines, torpedoes, and submarine boats, and has only been induced to adopt such methods of warfare because other nations forced her to do so.

Before the advent of the torpedo boat, Great Britain was secure in her position of Mistress of the Seas, so long as she possessed more line-of-battle ships than any other nation. The arrival of the torpedo-boat, the destroyer, and the submarine, all armed with the Whitehead torpedo, has given weaker nations the chance of attacking our ironclads with new weapons, and there are even those who affirm that the battleship is doomed, and must give way to a different type of craft.

The whole trend of modern invention has been to the advantage of weaker nations. Earl St. Vincent described under-water methods as “a mode of war which they, who commanded the seas, did not want, and which, if successful, would deprive them of it.” It is quite true that Great Britain would sooner trust to her guns and her line-of-battle ships than to her torpedoes and torpedo craft 31in actions on the high seas, but owing to other nations—admittedly weaker—having adopted the torpedo, she has no choice but to adopt it also in order to maintain her naval supremacy. So long as she provides herself not only with methods of submarine attack, but also with means of warding off the under-water attacks of the enemy, other nations are not likely to wrest the command of the seas from her.

It is idle to lament the advancement of Science. Man is an inventive animal, and is ever trying to inaugurate new devices and improve on old ones. For hundreds of years the sailing ship held the field, and guns and cannon underwent but little change. During the “Wonderful Century,” however, changes began in earnest. The wooden sailing ship disappeared, and the steam-driven ironclad took its place, whilst rifled ordnance, high explosive shells, and powerful propellants were introduced.

The fish torpedo made its appearance, and the swift torpedo vessel followed in its wake, and we are now threatened with submarine boats, turbine-driven men-of-war, and aerial machines for the launching of aerial torpedoes both on armies and on fleets.

What the future has in store none can foresee, and until the next great naval battle between first-class Powers comes to pass the value of modern engines of warfare will remain doubtful. All that is certain at present is that Great Britain cannot afford to dispense with mines, torpedoes, and submarine boats.

32We may seem to have wandered a long way from the “morality of submarine warfare,” but our purpose has been to show that when certain people argue—as they do seriously in this year of grace—that torpedo warfare should be declared contrary to the laws and customs of war, they are, to a certain extent, influenced by the fact that the torpedo is a weapon which Great Britain could very well do without, provided it was tabooed by other nations.

No one, not even a member of the Peace Society, would urge the suppression of the Lee-Enfield, or the quick-firer, because Great Britain relies on these for the maintenance of her place in the front rank of the nations of the world, and the argument as to the “illegitimacy” of the torpedo depends largely on the fact that other nations gain and Great Britain loses by its adoption.

There have been persons who have argued in favour of giving no quarter to crews of torpedo boats and submarines that might fall into our hands, and have suggested that we could explain such action to the other Powers, to whose advantage it is to use such weapons, by saying that though we had been driven to employ such methods, we were forced to treat the practice with severity. Such a course of action would cut both ways, and we suspect our own torpedoists would be very much averse to it.

Strange engines of warfare and new modes of fighting are received by the bulk of a nation, 33whose instincts are conservative and whose minds are incapable of imagining a state of things other than that which prevails at the moment, in much the same way as are new inventions. They are first of all scouted as impossible; then, if possible, of no utility; and finally, when they have been universally adopted, they are declared to be no novelties at all. Just as many old ladies have been heard to declare that they will never travel by the Two-penny Tube, so nations have been known to disclaim all intention of using particular weapons. Yet after a time we find the old ladies in the Tube and the nations employing the weapons. Familiarity breeds contempt.

The earliest man—Homo sapiens—fought with his fists, his legs, and his teeth. Gradually he made for himself weapons, deriving his first instruction in their manufacture by observing the ways in which the animal creation fought one another. His earliest weapons were made of wood, bone, and stone, and in due course there was evolved the spear, the waddy, the boomerang, the hatchet, the tomahawk, the bow and arrow, the pike, the lance, the axe, the sword, and other implements.

It is exceedingly probable that the adoption of a new engine of warfare by a tribe would be condemned by another tribe—to whom it had not occurred to use it—as illegitimate, but it is equally probable that while sturdily protesting against the use of one weapon the tribe would be slily endeavouring to procure one more deadly still.

34The first great revolution in the art of war was the introduction of gunpowder, both as a propelling agent and also as a charge for shells and bombs. Although the explosive nature of saltpetre when mixed with carbon and charcoal was doubtless known to the Chinese some centuries before the Christian era, our first knowledge of the use of gunpowder as a military agent dates from the seventh century, when it was used by the Byzantine emperors under the name of “Greek fire” in the defence of Constantinople against the Saracens.

“Greek fire,” the invention of which is commonly attributed to Callinichus in 668 A.D., consisted probably of pounded resin or bitumen, sulphur, naphtha, and nitre. There were three ways of employing it: it was poured out burning from ladles on besiegers, it was projected out of tubes to a distance, and it was shot from balistæ burning on tow, tied to arrows. Its effect was probably rather moral than material.

Geoffrey de Vinesauf, in an account of a naval battle in the time of Richard I., writes thus of Greek fire: “The fire, with a deadly stench and livid flames, consumes flint and iron; and unquenchable by water, can only be extinguished by sand or vinegar. What more direful than a naval conflict! What more fatal, when so various a fate envolves the combatants, for they are either burnt and writhe in the flames, shipwrecked and swallowed up by the waves, or wounded and perish by arms.”

35Despite the lamentations of the humanitarians of the time, Greek fire and serpents (missiles resembling rockets charged with and impelled by the slow explosion of a certain mixture) continued to be used in the navy until the reign of Richard III.

Another favourite method of early naval warfare was the “fire-ship.” Falkiner, an old writer, tells us that fire-ships were used by the Rhodians in 190 B.C. They were certainly used by the Greeks; they were employed by ourselves against the Armada, and they first appeared in our Navy List in the year 1675; they were used in the Dutch and French wars at the close of that century, but probably fell into disuse in the eighteenth. It is quite clear that with the French, as well as with ourselves, the crews of fire-ships did not expect quarter. Admiral Gambier deprecated fire-ships as being a “horrible and anti-Christian mode of warfare,” while Lord Cochrane said that if any attempts were made upon the British squadron by fire-ships they would be “boarded by the numerous row-boats on guard, the crews murdered, and the fire-ships turned in a harmless direction.”

Lord Dunsany appeared to think that this apparently cruel rule of no quarter to the crews of fire-ships worked well for humanity in practice, and he seemed to be in favour of its being extended to the crews of torpedo-boats and submarines. His Lordship pointed out, in a lecture at the Royal United Service Institution, that the crews of fire-ships would not stick to their ships to the moment 36of explosion, but had after firing the fuse to make their escape in boats, which boats, as they passed through the enemy’s lines, would naturally become targets, and if meanwhile some ship clasped in the deadly embrace of the fire-ship had exploded, it was all the more likely that the fugitives would be the objects of unsparing vengeance.

“Probably then the vague but fatal epithet ‘un-English’ came to attach to men who used a deadly weapon, but withdrew themselves (sometimes too quickly) from the fray. I cannot produce evidence of the facts, but I believe that officers serving in fire-ships did not stand high with their brother officers. It is some confirmation of this creed that we do not find the Boscawens, Rodneys, Howes, Jervises, Nelsons serving in fire-ships.”

The first use of gunpowder as a propelling agent was in Spain in the twelfth century, at which period both the Moors and the Christians used artillery. It was first employed in warfare in England in 1327 by Edward III. in his war against the Scotch, the cannon from which the shot was fired being termed “Crakys of war.”

There is abundant evidence that the use of artillery in battle was at first thought to be improper. When cannon was employed at Chiaggia in the fourteenth century all Italy made complaint against this manifest contravention of fair warfare; the ruling classes, seeing their armour, lances, and knightly prowess rendered useless, vigorously opposed the newly-invented arms, declaring that they were calculated 37to extinguish personal bravery. Perhaps this sentiment may have had some weight with our navy, for it was not until towards the close of the sixteenth century that artillery finally assumed the position of the dominant arm in the service and that musketry fire altogether displaced the arrow and the bolt.

Shells appear to have been first used by the Sultan of Gujarat in 1480, and they were in general use about the middle of the seventeenth century.

There is no doubt whatever that shells and bombs were considered highly immoral by the side which did not employ them. To those accustomed only to fire solid shot there must have been something very terrifying in the hurling of shells fitted with explosives which when they burst slew those round about and set fire to dwellings and ships.

When the Bomb Ketch, a ship firing bombs and shells, was introduced into our navy in the seventeenth century, the French were particularly angered by the “inhumanity” of the English in firing “inflammable fire balls and shells.” Again in the eighteenth century we find the Marechal de Conflans issuing an order against the use of hollow shot or incendiary shell because they “were not generally used by polite nations, and the French ought to fight according to the laws of honour.”

At the battle of the Nile in 1798 the French flagship L’Orient took fire and blew up, and when the French sailors reproached the English for using incendiary missiles the latter repudiated the charge, 38and mentioned that they had found such unlawful weapons in one of the prizes they had taken; thus the hollowness of the French regard for humane warfare was neatly demonstrated.

Whilst Great Britain did not scruple to fire lyddite shells at the Boers, their wives, and their children at Paardeberg, she prided herself on her abstention from the use of explosive or expanding bullets, and much abuse was heaped on the Boers for their employment of such. It may, however, be doubted whether a bullet which kills you right off at once, or at any rate which disables you permanently for a long time, is not preferable to one which is of so mild a nature that you can be shot over and over again, alternating your appearances on the battlefield with visits to the hospital.

A lecture on “Explosive Bullets and their Application to Military Purposes” was delivered before the Royal United Service Institution in 1868 by Major G. V. Fosbery, the first officer to use these projectiles in the field, systematically and to any large extent, against some of the mountain tribes of the North-West frontier of India. The lecturer tells us that the natives considered them unfair on two grounds—firstly, because they exploded in an objectionable way; secondly, because there was nothing they could collect of them afterwards, as in the case of ordinary bullets. But more civilised people complained of the use of “rifle shell” on the ground of their Satanic nature, and to these Major Fosbery replies as follows:

39“The arguments which condemn a warlike instrument simply on the grounds of its destructiveness to life, provided that it neither adds keen agony to wounds nor new terrors to death itself, are, if logically pursued, simply retrogressive, and even if not recommending by implication a return to the bow and arrow, at all events point to the old times of protracted wars and deaths from fatigue and disease far exceeding in number those caused by the weapons of an enemy. We can therefore afford to set these on one side, or rather we are bound to neglect them altogether and seriously consider any invention which under the conditions above laid down promises us a more certainly destructive fire than that attainable cæteris paribus by the arms at present included in our war material.”

In spite of opinions such as these the humanitarians have won the day, and explosive bullets are now tabooed by Great Britain. The great Duke of Wellington used to say that he should not like to see the bullet reduced in size, because it broke the bone, and the object of war was either to kill your man or else put him in hospital and keep him there. With the Mauser and the Lee-Enfield neither of these results is attained.

The prototypes of the modern submarine torpedo, although they were employed on the surface of the water and not below, were the “machine,” the “infernal,” the “catamaran,” the “powder-vessel,” &c.

“Machines” may be best described as fire-ships specially arranged so as to explode very destructively 40when alongside one of the enemy’s vessels. They are first found in the British Navy in the seventeenth century, but were soon discontinued, not we are afraid on humanitarian grounds, but because Bushnell and Fulton pointed the way to the more convenient explosive device known as the “torpedo.”

In the year 1650 Prince Rupert made an attempt to blow up the English Vice-admiral in the Leopard by a species of “infernal.” He sent a couple of negroes and one of his seamen in Portuguese dress alongside the Leopard in a shore boat. They carried with them what purported to be a barrel of oil, but the barrel really held an infernal machine to be fired by a pistol attachment, the trigger of which could be pulled by a string passing through the bung. The story goes that one of the crew of the boat, finding the lower deck ports closed, “uttered an exclamation” in English. This betrayed them, but Blake refused to take vengeance on them, though the trick was one he would himself have scorned to play on his adversary.

During the war between Great Britain and the United States in 1812 H.M.S. Ramilies of seventy-four tons, was so unfortunate as to be the object of attack both by a diving vessel carrying torpedoes and by a powder-ship. The Ramilies was lying off New London at anchor and maintaining the blockade. As she was known to be short of provisions the Americans fitted out a schooner and filled the hold with powder, covering it over in the 41hatchways with barrels of flour. By means of an ingenious piece of clockwork attached to a gunlock and a train leading to the powder its explosion was ensured at the intended time. The Ramilies suspecting nothing, but thanking Heaven for the gift, captured the vessel and the crew escaped to land. By some extraordinary chance (or was it destiny?) the schooner was ordered to anchor near another prize some distance from the Ramilies, so that when the clockwork reached the fatal hour, 2.30, the charge exploded and blew up, not the Ramilies with her captain, Sir Thomas Hardy, and crew of six hundred men, but only the prize crew who were in the schooner.

The naval historian James could not trust himself to comment upon “this most atrocious proceeding,” whilst a naval officer wrote: “A quantity of arsenic in the flour would have been so perfectly compatible with the rest of the contrivance that we wonder it was not resorted to. Should actions like this receive the sanction of Governments, the science of war and the laws of nations will degenerate into the barbarity of the Algerians, and pillage will take the place of kindness and humanity to our enemies.”

During the American Civil War a species of weapon known as a “coal torpedo” was employed. This consisted of a hollow lump of iron, fitted with a charge of dynamite. It was rubbed over with coal tar and dust, and exactly resembled a large lump of coal. Lord Dunsany thought that this 42certainly seemed to be on the verge of lawful, if not beyond it.

At the close of the eighteenth century David Bushnell inaugurated the era of submarine warfare by devising cases fitted with explosives, arranged to go off at a set time by clockwork. To enable these cases to be affixed to the sides of vessels, Bushnell invented the first boat capable of diving beneath the waves of which we have any definite details. His attempts to blow up the Eagle in 1776 by a case fastened on her bottom, and the Cerberus in 1777 by means of a towing torpedo, failed, owing more to the lack of skill on the part of the operator, Sergt. Ezra Lee, than to any defect in the apparatus employed. Nor was Bushnell successful in his effort to destroy vessels in the Delaware by the aid of a number of kegs filled with powder and set adrift.

The introduction of gunpowder, of Greek fire, of fire-ships, of artillery, of shells, of bombs, of machines, of infernals, of catamarans, of powder vessels having, as has been shown, been at one time or another denounced as immoral by certain “humanitarians,” it was but natural that a secret contrivance for bringing about a terrific explosion beneath an unsuspecting ship’s crew should have been believed to be an invention of the Evil One, and history affords proof that the novel modes of fighting introduced by Bushnell and Fulton were regarded with great disfavour by naval men, who considered the innovators as men “who would discredit 43the glorious traditions of our navy, and substitute a set of catamarans for the noble frigates that had carried our flag to victory and were the pride of the nation”; by humanitarians, who regarded the torpedoes as a “dishonest and cowardly system of warfare”; and by the public generally, who denounced the nations who attempted to compass the destruction of British ships of the line by dastardly tricks which England would never stoop to employ.

In a work written by James Kelly, and published in 1818, the author comments with great severity on “some infamous and insidious attempts to destroy British men-of-war upon the coasts of America by torpedoes and other explosive machinery.” This refers to the attacks on H.M.S. Ramilies by one of Fulton’s boats, attacks which failed, but which caused Sir Thomas Hardy to notify the American Government that he had ordered on board from fifty to one hundred American prisoners of war, “who, in the event of the effort to destroy the ship by torpedoes or other infernal inventions being successful, would share the fate of himself and his crew.” So frightened were the relations and friends of prisoners of war by these threats that public meetings were held, and petitions were presented to the American executive against the further employment of torpedoes in the ordinary course of warfare.

Those who endeavoured to perfect a system of submarine mining for the defence of harbours and 44coasts were abused in the same way that Bushnell and Fulton had been. Samuel Colt, the inventor of the pistol which bore his name, and one of the first to experiment with mines fired from shore by means of an electric current, was roundly denounced by John Quincy Adams, who dubbed him “that Guy Fawkes afloat.”

At the time of the Crimean War the popular term “infernal machine” was applied to the submarine mines laid down by the Russians to defend the approaches to Cronstadt. In the seventies Lieut.-Col. Martin endeavoured to establish, on the grounds of humanity, an international anti-torpedo association, while even to-day there are people found to protest against the employment of certain forms of torpedoes, as witness the following letter recently published in the Engineer. The author, Mr. Reginald Bolton, declared that while no one could object to the defensive lay torpedo or the spar torpedo, the same could not be said of the “Whitehead,” “Brennan,” or “Edison.”

“Surely,” he urges, “our forefathers’ code of morality in warfare should not be in advance of our own. All civilised nations have debarred the brutal explosive bullet, and why not the equally mean submarine torpedo? If such a remedy as Commodore Hardy’s were to be applied by any nation, could its opponent complain, and is there anything in the practice of morality to prevent, say, a thousand prisoners’ lives being presented as a bar to the use of an implement which was acknowledged to be a disgrace to its employers not less than eighty years ago?”

45The methods of warfare which have most aroused the ire of humanitarians and “blatant platform orators, with their vulgar party cries of eternal peace,” are those which depend for their success on secrecy or deceit. Powder vessels, coal torpedoes, et hoc genus omne, are condemned because they pretend to be what in reality they are not, and torpedoes and submarine boats because they advance in secrecy without giving the enemy any chance of firing at them or of protecting themselves against their insidious attacks beneath the water-line.

The arguments of the humanitarians, who are doubtless well meaning enough, are inconsistent, because, while they raise no protest against certain modes of conducting war, they unreservedly condemn other methods—mainly, it must be observed, because of their novelty. Such a class of person resembles the Quaker who found himself on a vessel engaged in a conflict with another vessel. He resolutely refused to assist in fighting the guns, but at last, when the enemy attempted to board, he collared the leader and pitched him into the sea, saying as he did so, “Friend, thou hast no business here.”

Major Fosbery, in a lecture on explosive bullets, asked whether any of the deaths due to fighting were, strictly speaking, humane, and if they were not, what was this humanity of which so much was made? “Have we not heard that in the dark ages humanity beat out men’s brains with a mace, whilst cruelty used the lance, the sword, and the arrow, 46and that bishops of the period rode into action with the mace so as to kill without shedding blood? A very nice distinction indeed, as you will admit. In later times, were not Congreve and Shrapnel denounced as monsters for the initiation of inventions in whose perfection we rejoice to-day?”

Inconsistency indeed is the particular failing of Peace propagandists. They not only condemn the use of certain weapons while raising no protest against others equally as destructive of life, but they also pretend to be horrified at deeds committed by the enemy which they themselves would not scruple to do should opportunity offer. Particularly is this the case in savage warfare. Captain Herbert has mentioned a striking instance during the Zulu War. One day the boys were calling in the streets, “Shocking murder of a whole British regiment” (it was at Isandlewana), and a few weeks afterwards the same boys were shouting, “Great slaughter of the Zulus.” This is akin to the practice of those orators who refer to the “expansion” of England, but to the “encroachment” of Russia.

As to the “inhumanity” of the submarine vessel, Mr. Nordenfelt, it may be noted, would not admit that there was anything especially cruel or horrible in the idea of a diving torpedo boat. War altogether was cruel and horrible, and caused an enormous amount of pain and suffering, but any invention which tended to shorten a war or to protect common or private property during war would really diminish this suffering on the whole. Humanitarians had 47urged that there was something especially cruel in the secrecy of the submarine boat, but the whole tendency of war had, he pointed out, moved in this direction ever since the days of old, when Hector and Achilles advanced in front of their respective followers and spent half an hour in abusing their adversary’s parents and ancestors before they commenced to fight.

EMERGING TO TAKE BEARINGS.

The whole object of modern warfare is to keep the enemy ignorant of your whereabouts and your actions, and to mislead him whenever possible, and for this reason smokeless powder, torpedoes, disappearing guns, &c., have come into use, false attacks are considered admissible, and every advantage 48is taken of cover and entrenchments. The only “cover” possible in naval warfare is beneath the waves, and it is difficult to see any greater inhumanity in submarine than in military mining, which certainly dates from very early times. If it is lawful to sap and mine before a fortified town, and to blow up an army as it marches unsuspectingly over “mined” ground, it is surely permissible to send ships sky-high by mines and to sink them by torpedoes.

Mr. A. F. Yarrow has remarked that it seemed strange that an artilleryman behind ten or twenty feet of earthwork, hurling explosive shells at an almost unseen foe, should be held as fighting fairly, while in the case of the torpedoist, who has the pluck to accompany his missile to within a short distance of his enemy, it should be considered an unfair mode of attack.

Yet so it is, and we find in a recent number of the Engineer^[1] that submarine warfare is placed on a par with guerilla warfare and train-wrecking. “The torpedoing of a single German ironclad by a submarine would almost certainly be followed by a refusal to recognise submarines as belligerents.”

The question of the laws and usages of civilised warfare has been the subject of many books and articles, and conferences have been called to endeavour to arrive at some understanding on the subject. An International Conference on the “Usages of War,” held at Brussels in 1874 at 49the instance of Alexander II., considered among other things, “the means of injuring an enemy,” and suggested the prohibition of the use of poison and poisoned weapons, murder by treachery, and murder of a disarmed enemy, projectiles causing unnecessary suffering, and prohibited by the declaration of St. Petersburg in 1818; “ruses de guerre” were, however, declared permissible.

In connection with the Boer War it is interesting to note that differences arose at this Conference between the representatives of the large States possessing great standing armies, and of the minor States with small armies. The former thought that war should be the business of professional trained soldiers, that they, and as a rule they alone, should fight, that war should follow a regular course, and that the worthlessness, from a military point of view, of the sporadic efforts of partisan warfare should be recognised, and that when a battle was won and the seat of Government was in the possession of an invader the inhabitants should respect the conquerors as the de facto and de jure Government. If they interrupted communications and cut off isolated bodies of troops they were to be dealt with not as honourable combatants, but as assassins and marauders.

The “Geneva Convention” met at Geneva on August 8, 1864, and on the 22nd of the same month an International Code was adopted by all civilised powers, except the United States. The code mainly concerned itself with the succour of 50the wounded in time of war, and certain cruel methods of warfare, such as the use of explosive bullets, were condemned, Great Britain agreeing not to use such weapons in war against civilised nations.

The Peace Conference at the Hague was opened on May 18, 1899. Of the eight proposals submitted for discussion, the second was the prohibition of the use of new arms and explosives, the third the restriction of the use of existing explosives and the prohibition of projectiles and explosives from balloons, and the fourth the prohibition of submarine torpedo boats, and the agreement not to construct boats with rams in the future.

The final act embodying the results of the Conference contained three declarations. 1. Prohibition of the throwing of projectiles and explosives from balloons or any other analogous means. This prohibition to be in force for five years. 2. Prohibition of projectiles intended solely to diffuse asphyxiating or deleterious gases. 3. Prohibition of the use of bullets which expand easily in the human body.

It may be noted that Great Britain did not bind herself to accept any of these three declarations.

“The laws of war,” wrote Montague Bernard, “are nothing at all but the usages according to which warfare by land and sea is carried on, and the collection of the whole body of usages represents what we call the laws of war.... The student of history is apt to be a little puzzled by frequent reference to ‘laws’ with which he is tacitly 51assumed to be familiar. What are these laws? Where are they written? What authority do they command? They are a body of usages, for the most part conditional, which have arisen principally from motives of convenience and the extension of commerce.”

It is of course recognised that the only force which supports international law is the appeal to the conscience of the nation, for there is no international tribunal to punish countries for deeds committed in time of war. While it is unlikely that the rough game of war ever will be played (it certainly never has been in the past) in exact conformity with the rules of the jurists, there are certain methods of waging war which England would not employ, and certain acts which she would not commit in the event of hostilities breaking out between herself and a civilised country.

She would not use explosive bullets. She would not fire on undefended towns, and would endeavour to avoid the destruction of non-combatants and their property. She would not poison wells, she would not endeavour to accomplish the assassination of a commander-in-chief, she would not abuse a flag of truce, she would not murder prisoners who behaved themselves, and put to death those who surrendered.

On the other hand, she would consider herself at perfect liberty to employ submarine boats, torpedoes, and mines, both military and naval; to discharge shells filled with high explosives, whether 52lyddite, melinite, or other substance, from aerial machines; to intercept the enemy’s messages and to mislead him by sending false ones; to commence hostilities without issuing a declaration of war;^[2] to fire on, and if necessary sink, the merchant ships of the enemy; to starve a garrisoned town; to erect wire entanglements and similar obstructions; to offer wrecking lights as navigation lights; and to employ any “stratagem” or “ruse de guerre” which might serve some useful end. With regard to stratagems, it appears to be quite proper to disguise ships and men, and to use false signals, false colours, and neutral flags, though a British naval officer would probably not fire into his enemy before hauling down his neutral or false colours.

Vice-Admiral Rodney M. Lloyd pointed out in a recent letter to the Times that while in naval warfare all stratagems were admitted, expected, and provided against, in military operations, on the contrary, some acts of a similar kind appeared to be objected to. The Boers, for instance, frequently disguised themselves in British khaki uniforms, and endeavoured to delude sentries and guards.

Some writers refer to this as “the abuse of the khaki uniform” and “the treacherous use of the khaki uniform,” but if such things are permitted in naval operations it is difficult to see why they should be considered immoral if practised on land.

Apropos it may be mentioned that during some 53Russian naval manœuvres the admiral’s ship was destroyed by the following trick. A party of volunteers from other squadrons came alongside the cruiser Africa, the flagship, in a Finnish coasting smack, and one of the volunteers, dressed as a peasant, came on board with a telegram. Whilst the attention of the Africa’s crew was diverted the other volunteers fastened a small buoy with the inscription, “Frigate Prince Pojarsky,” under the stern of the flagship.

BENEATH THE WAVES.

Of course there is a very thin line which separates what is considered fair and what is considered unfair warfare among civilised communities. Lord Dunsany said that he was not perfectly sure that 54there could not be something said in favour of poisoning wells. “We have heard something about poisoning the air. The French some time ago had what they called bullets asphyxiants. These would have utterly poisoned a whole ship’s crew. If these missiles may be used, then it comes to this: that it is lawful to poison the air, but not lawful to poison the water.”

Lyddite shells seem rather to resemble these bullets asphyxiants, for their stench is reported to be terribly stupefying to those in the immediate neighbourhood when they burst. But whereas explosive shells fired from guns are considered “legitimate,” shells fired from rifles are regarded as “illegitimate.”

Respecting the question of poisoning wells, Colonel Lonsdale Hale has remarked that so long as this was done openly, and the fact notified in some way to those who would use them, there seemed to be nothing more to be said against this forbidden practice than against the permitted practice of depriving the enemy of good water supply by filling in wells and by cutting off the good water, as the Germans did at Metz and Paris, and reducing their enemy’s water supply to the sewage-receiving Moselle and Seine. If it was permissible to starve one’s enemy by denying him solid food, it seemed to him equally permissible to starve him by denying him liquid food.

Wolff and Bynkerhoeck, two of the originators of international law, thought the use of poison in 55warfare perfectly legitimate. Vattel considered the practice interdicted by the law of nature which did not allow of the multiplying the evils of war beyond all bounds. To get the better of the enemy he must be struck, and if once disabled, what necessity, he asked, was there that he should eventually die of wounds.

Opinion also differs as to the morality of attacking undefended towns and injuring the property of non-combatants during a war.

The late Admiral Aube, when he was head of the French Admiralty, said the proper way of bringing this country to order was to burn Brighton and Scarborough and a few other places; and Admiral Sir J. C. Dalrymple Hay, Bart., has remarked that he could not say he thought that he was wrong. According to the latter, the object of each side is to do the greatest possible destruction to the enemy, and also to make him cave in; the whole of the country is engaged in war, they pay taxes for the war, they encourage their soldiers and sailors to fight courageously, they suffer for the war in various ways and they urge it on; and they must expect to suffer accordingly.

Humanitarians affirm that in actual war soldiers and sailors of the Dalrymple Hay school would be too human to act up to their expressed opinions; the probability is that England would only resort to such measures if the enemy were determined to employ them. Vice-Admiral Bourgois, in his book “Les Torpilleurs,” made a strong protest against 56the doctrines of those who advocated the bombardment of undefended towns and the sinking without warning of defenceless merchant ships. He urged that the nationality of the vessel should first be verified, and then provision made for the crew and passengers.

Apart from the “Hague enthusiasts” who are for prohibiting the employment of high explosives, aerial torpedoes, and submarine torpedo boats, there is another class of humanitarians who urge the adoption of all new and deadly engines of warfare, apparently with the idea that if war is made sufficiently terrible no nation would dare fight another. “The more terrible the anticipation of naval war,” says a writer, “as fashion and science continue the contest, the less likely will be its realisation.”

The late M. Bloch, as we know, considered war to be tactically, strategically, economically, and morally impossible, but as he assured us also in his book, “Is War Impossible?” that bayonets were quite out of date, one may be forgiven for not paying much heed to his lucubrations.

Admiral Porter, of the U.S. Navy, considered that if war was made so dangerous that every combatant would to a certainty be killed, then there would be an end of the business and the Peace Society could put up their shutters.

The newspapers, especially the halfpenny ones, are constantly informing us of the discovery of new engines of warfare of terrible potency. Mr. Tesla is going to wipe out the British Fleet by 57simply touching a button on his waistcoat or elsewhere. Mr. Hudson Maxim has devised a method of throwing aerial torpedoes carrying each of them one ton of high explosive which is so efficacious that one cruiser lying just out of range of our guns would destroy all our battleships with the greatest ease. Dr. Barton is building an airship which will throw explosives on the enemy below, who will be powerless to retaliate, and so on.

The wars of the future, so the halfpenny journalists inform us, will be either waged under the seas or above the clouds, and we seem to be approaching the time imagined by Lord Tennyson, whose swain (in “Locksley Hall”)—

If wars ever die out, it will certainly not be owing to the destructive capabilities of the weapons employed. In the eyes of old Geoffrey de Vinesauf the naval conflicts of his time were as terrible as he could well imagine them to be, but a hundred years hence a Conference will doubtless be held at Tokyo to consider what restrictions should be placed on the use of submarine boats and aerial machines in time of war.

Those who are in favour of utilising the latest resources of science for the purpose of warfare are in reality more humane in the truest sense of the 58word than those who seek to limit nations in their choice of weapons. Vice-Admiral Sir John Fisher, who was one of those chosen to represent Great Britain at the Hague Conference, expressed himself strongly on the cruelty of making war on “humane” or moderate principles, and it is an undoubted fact that in spite of the deadly nature of modern arms, wars, on land at least, are not so destructive of life nor do they cause so much misery and suffering as they did formerly.

We can speak with more certainty with regard to warfare on land than we can to warfare on sea, but though the next great naval fight between two nations will certainly entail terrible suffering on the combatants (especially on those whose stations are below), it may be said that on the whole they will neither cause such wholesale misery nor be so protracted as the naval battles of old.

“Every war,” said Captain Herbert in a recent lecture at the Royal United Service Institution on “The Ethics of Warfare,” “marks a step. In 1885 the Servians, when they invaded Bulgaria, paid conscientiously in good coin for every fowl or pig seized in farmhouses, for every glass of brandy drunk in village inns; and when the tables were turned, and the Bulgarians invaded Servia, the Bulgarian soldiers and the Servian traders fraternised most cordially in the alehouses of Pirot. To come to the latest European war—that between Turkey and Greece in 1897—we have the testimony of the war correspondents that the behaviour of 59the Ottoman soldiery was quite exemplary. If things continue in this wise we shall perchance hear in the next century of every rifle discharge being preceded by a conciliatory caution and every bursted shell being followed by a humble apology.”

Dr. J. Macdonell, in a recent lecture, has touched on this subject. “It must be owned,” he says, “that the progress in mitigating the evils of war have been immense—that acts of useless violence which were once habitual are now exceptional, and are punished or condemned by military opinion. Ask those who say, ‘Things are much as they were: the grim realities of war no better than before,’ to note the matter-of-fact way Comines de Hoissard relates cruelties as the necessary accompaniments of warfare; then compare with such passages some of the many handbooks published by European Governments for the use of their troops. It has been truly said that the difference between the methods of the Thirty Years’ War and of the War of the Spanish Succession is the difference between darkness and twilight; the difference between warfare as understood by Tilly and Pappenheim and that described in modern official Manuals is the difference between light and darkness. Everywhere is recognised that only effective injuries are justifiable. The modern soldier strikes hard, he doesn’t mutilate or destroy for the love of destruction.”

The Rev. Edmund Warre has drawn a vivid picture of the wretched plight of the slaves 60labouring at the oars, who suffered intense discomfort and were in continual danger.

“In a hot climate, with but very little ventilation, it must have been exceedingly trying to take part in a laborious mechanical toil with perhaps some hundred or two of human beings stark naked and packed so closely that there was not room, as Cicero says, for even one man more. The heat, the smells, the toil must have been terrible to any one undergoing it against his will—so terrible as to suggest that even death itself were better than such drudgery. A dull dead feeling of despair must have crept over man and crew in such a case, and though the lash might keep them going under ordinary circumstances, such spirits could not be relied upon in times of emergency, Besides the question of discomfort, the actual danger was very great. The crews were liable at any moment to be drowned or burnt, or, in the case of defeat, butchered by the victors—perhaps, as at Sybota, deliberately in cold blood. Conceive the moment of conflict and its horrors, when the sharp-pointed beak came crashing through the timbers, smashing them right and left along with the helpless mass of human beings, while the water followed swift upon the blow, perhaps just giving time to the Thranites (the rowers on the topmost of the three benches in the Trireme, who had the most work and the longest oars) to swarm up upon the deck, while the helpless Thalamites (the rowers on the lowest bench) were drowned at once.”

61Science, although she is continually placing man in possession of weapons more terrible and more destructive than those of the previous generation, really acts for the good of humanity at large, who owe a debt of gratitude to the mechanical geniuses who have evolved modes of warfare which enable war to be waged with as little unpleasantness as possible to the peaceful populations that have no concern with it.

In one respect at least modern warfare is certainly more humane than that of olden times, and this is in the treatment of the wounded and the captured. In ancient warfare the fate of the captive was death or slavery, and in early battles no quarter was given, except to personages of great distinction, and the object of both sides was to slay as many of their opponents as possible, and as surrender only made the prisoner the perquisite of his captor, the fighting was both bloody and fierce. Even as late as 1780 a prisoner was still viewed as the property of the victor, and there was a regular scale or tariff of payments.

One instance culled from an account of a battle between Christians and Turks, written by Geoffrey de Vinesauf, must suffice.

“Drawing the hostile galley with them to the shore the victors exposed it to be destroyed by our people of both sexes who met it on land. Then our women seized and dragged the Turks by the hair, beheading them and treating them with every indignity and savagely stabbing them, and 62the weaker their hands so much the more protracted were the pains of death to the vanquished, for they cut off their heads not with swords but with knives.”

Dr. Macdonell has pointed out that the only notable survival of barbarism in respect to captives was the rule—abrogated apparently in some countries but retained by us for reasons never satisfactorily explained—that the crews of pirate vessels captured at sea were treated as prisoners of war.

In the next great fight on the seas, if a submarine boat should be hit by the quick-firing guns of a battleship she is endeavouring to destroy, her crew, provided they are not sunk like rats in a trap, will be picked up by the ironclad’s boats and kept as prisoners of war till hostilities are at an end.

We are reminded of some lines in Mr. Kipling’s poem, “Kitchener’s School”—

Those who argue in favour of the suppression of under-water warfare have pointed out that whereas the battleship can save the crew of the torpedo vessel, the latter owing to her small size can only steam away, sending the big ship to the bottom, and leave the unfortunate crew to drown or save 63themselves as best they can, which, with shell and shot flying about, would not be easy. A way out of the difficulty has not been found yet.

What then is the conclusion of the whole matter? It is this. Since the object of war is peace, make war as deadly as possible; since your goal is complete conquest, use all efforts to get it over as quickly as possible. We cannot do better than quote the following remarks made by a speaker during the discussion on Lord Dunsany’s lecture, above referred to.

“In conclusion I would say, save us from the cruel mercies of the weak. War—that splendid mistress for whose favours we have all longed since we reached man’s estate—must be given her full attributes and painted in her most deadly colours in order that the misery, which undoubtedly she brings to the majority of the population, may extend over as short a period as possible. Let us make her as deadly as we can, in the name of humanity and of every good feeling.”

Mr. H. G. Wells, in his “Anticipations,” confesses that his imagination, in spite even of spurring, refuses to see any sort of submarine doing anything but suffocate its crew and founder at sea. “It must involve physical inconvenience of the most demoralising sort simply to be in one for any length of time.... You may of course throw out a torpedo or so with as much chance of hitting vitally as you would have if you were blindfolded, turned round three times and told to fire revolver-shots at a charging elephant.... Given a derelict ironclad on a still night within sight of land, a carefully handled submarine might succeed in groping its way to it and destroying it; but then it would be much better to attack such a vessel and capture it boldly with a few desperate men on a tug. At the utmost, the submarine will be used in narrow waters, in rivers, or to fluster or destroy ships in harbour, or with poor-spirited crews—that is to say, it will simply be an added power in the hands of the nation that is predominant at sea. And even then, it can be merely destructive, while a sane and high-spirited fighter will always be dissatisfied if, with an undisputable superiority of force, he fails to take.”

65

INTERIOR OF THE FIRST BRITISH SUBMARINES (NOS. I.–V.).

67We are afraid that Mr. Wells has not taken the trouble to keep himself in touch with the latest developments of submarine navigation. As we write, news comes from America of a party who spent fifteen hours under water in the Fulton without suffering any inconvenience. This does not look much like the “suffocation” Mr. Wells anticipates. As to torpedo-firing, French and American boats whilst under way have made excellent practice, both at stationary and at moving targets; while in making the assertion that the submarine will be used in narrow waters, in rivers or in harbours, it is evident that Mr. Wells is unaware of the lengthy voyages made by some of the newest boats.

The David represented the best type of under-water vessel in the sixties; that she is infinitely inferior to the newest Holland type or some of the French vessels of to-day goes without saying, and it will not be surprising if the submarine of thirty years hence bears the same resemblance to the Holland, as the Holland does to the David.

The ideal submarine boat has a speed as great as that of the fastest torpedo-boat, a very wide radius of action, excellent sea-keeping powers, unlimited 68quantities of air for power and for respiration by the crew; a means of directing its course by vision upon a moving object whilst itself remaining invisible beneath the surface, and is very habitable and comfortable for long periods of time.

The submarine of to-day lacks most of these attributes. It has a slow rate of speed, whether on the surface or submerged, a narrow radius of action, poor sea-keeping powers, a strictly limited quantity of compressed air, and is absolutely blind when beneath the waves. Thus it differs greatly from the ideal boat as sketched above, but its gradual improvement may be safely predicted.

We propose in this chapter to describe, in simple language, the working of a vessel intended for under-water navigation, and to consider what improvements are likely to take place.

Every submarine boat worked by a crew must of necessity be capable of floating on the surface of the water. This is a self-evident proposition, for the crew must have means of ingress and egress, and the only practical way of entering and leaving the boat is by an opening in the hull when she is on the surface.

We have no doubt that the files of the Patent Office would show that many inventors had designed boats which would sink to a certain depth directly they were placed in the water. While in such a system no time is lost in submersion, there would undeniably be difficulties in the way of coming to the surface, &c.

69The first problem, then, which confronts the designer of a submarine boat is to find the most suitable method of sinking it to the depth at which it is intended to navigate.

The most fundamental law of hydrostatics, which applies to all floating bodies, and is equally true of wholly submerged vessels floating at any depth, as of ships of ordinary form, floating on the surface, having only a portion of their volume immersed, is that a ship floating freely and at rest in still water must displace a volume of water having a weight equal to her own weight.

The “displacement” of a vessel is defined as the weight of water displaced, which is equal to the weight of the vessel and that of her lading. A ship floating on the surface “displaces” a certain weight of water; in order to force her beneath the surface two methods are open.

In the first place, her weight is increased by the introduction of water ballast; thus her “displacement” is altered and she sinks until her weight is again equal to the volume of water displaced.

In the second, the weight of the boat remains constant, but the displacement is altered by the drawing in of “cylinders” or “drums;” thus she sinks until her displacement again equals her weight.

The first inventor to employ the latter method was André Constantin, who built a vessel during the siege of Paris, which was furnished with pistons working in two cylinders; on these being 70drawn in from the interior the boat sank to the required depth. The actual trials were, however, not satisfactory. The Nautilus, of Messrs. Campbell & Ash, which underwent some trials in Tilbury Docks in 1888, depended also on the pulling in of cylinders (ten were employed, five on each side of the vessel), for her submersion; the results were equally discouraging, and some eminent men nearly lost their lives owing to the erratic behaviour of this craft.

THE SUBMARINE OF ANDRÉ CONSTANTIN.

(1874.)

No serious ship-constructor would nowadays think of adopting this method of submersion, and we may therefore pass on to consider those which are brought to the submerged condition by the admission of water into special reservoirs or tanks.

Submarine boats so far as their immersion is concerned may be divided into two classes.

1. Those which when submerged possess no floatability.

2. Those which in the same condition possess a small reserve buoyancy or floatability.

71Modern submarines almost without exception belong to the second division, as this class has been found to possess great advantages over the first.

“GOUBET II.”

Boats belonging to this division possess when submerged a total weight equal to the weight of water displaced. During immersion it has been found necessary to make the weight of the vessel and its contents slightly exceed the weight of water displaced by the total volume of the vessel; this excess of weight causes a downward motion 72which rapidly accelerates unless checked, and care must be taken to regulate, either automatically or otherwise, the depth, lest the vessel sink to a depth where the pressure is greater than she can withstand.

M. GOUBET ABOUT TO GO UNDER WATER IN HIS BOAT.

Although M. Goubet is a believer in the “no-floatability” idea, it has, for some time past, been regarded with disfavour. Theoretically it is possible to navigate a submarine whose total weight equals the weight of water displaced so that she keeps at a given level without rising or sinking, but the system will not work satisfactorily when put to severe and prolonged tests. It is found to be impossible to obtain perfect equality between 73the two weights: submarine currents, variations of atmospheric pressure and temperature, and movements inside the boat all tending to disturb its equilibrium.

Mr. Nordenfelt realised the superiority of submarines possessing a reserve buoyancy when submerged over those which possessed no buoyancy and all the most important of latter-day submarines fall under this division.

It is quite obvious that should any accident happen, such as the entry of water, the failure of the machinery, the asphyxiation of the crew (rendering the detaching of a false keel impossible), &c., the submarine with a reserve buoyancy would at once rise to the surface, while the boat with no floatability would remain where it was and then gradually commence to sink, owing to the fact that it is almost impossible to prevent the water from finding its way, little by little, into the boat.

Submarines which possess floatability when submerged have a weight which is less than their displacement and some mechanical action must be resorted to to force them below the surface. The first operation consists in introducing a certain amount of water into the tanks so that the boat is brought to the “awash” condition, with the greater part of the hull below water and only the conning tower, &c., appearing above the waves. 74The complete submersion of the vessel may be attained in two ways: either screws on vertical shafts are employed to “screw” the vessel below the surface, whether at rest or whilst moving; or horizontal rudders, or planes, are used to steer the boat below the surface; this latter method is only applicable to moving vessels.^[3]

Just as a ship is driven backwards and forwards in the horizontal plane by means of a screw or screws mounted on a horizontal shaft, so it is possible to drive a ship up and down the vertical plane by means of one or more screws immersed in the water and mounted on a vertical shaft; the boat is by this method literally “screwed down” into the liquid.

The principle of the vertical screw was adopted by Bushnell who, in the description of his submarine vessel, writes: “At the top there was likewise an oar for ascending and descending or continuing at any particular depth.... When the skilful operator had obtained an equilibrium (by means of the forcing pumps) he could row upwards and downwards or continue at any particular depth with an oar placed near the top of the vessel, formed upon the principle of the screw, the axis of the oar entering the vessel. By turning the oar 75one way he raised the vessel, by turning it in the other he depressed it.”

PROFESSOR TUCK’S SUBMARINE.

(1884.)

M. Gaget remarks that “it is very strange that Bushnell should have discovered and concealed with so much care the instrument of propulsion which Sauvage studied and introduced fifty years later.” The fact is, of course, that the principle of the screw-propeller was known in the seventeenth century and that in May, 1785, Joseph Bramah patented a screw-propeller, identical in general arrangement with those in use to-day. The first practical use of the screw was made by John Stevens, who in 1804 launched a steamboat eighteen feet long by fourteen feet beam with a direct acting high-pressure engine having a tubular boiler—and driving a screw with four blades. Although the principle of the screw for ship propulsion was thus recognised at this early period it was not till the thirties (of the nineteenth century) that the screw-propeller succeeded in attracting the attention of the engineering world.

76Professor Tuck in his boat (1884) placed the propeller directly beneath the centre of the hull, so that it should submerge on an even keel.

Mr. Nordenfelt used vertical screws, which at first he fitted in side sponsons, but afterwards in the fore and aft line, and considered it absolutely essential that a diving boat should be kept horizontal when being submerged, as any inclination downwards with the impetus of a heavy boat would, he considered, almost to a certainty carry the boat below its safe depth, before it could be effectually counteracted by shifting weights. Such a theory was soon shown to be founded on a misapprehension.

Some inventors (Waddington, Baker, &c.) have used four screws operating in pits equidistant from the centre of the boat, two on the upper part and two on the under part, but all such methods have been discarded in the newest designs.

The ordinary vertical rudder steers the ship either to port or starboard in the horizontal plane, and the horizontal rudder can be used similarly to control its position in the vertical plane.

This method of steering a boat beneath the surface by the inclination of horizontal rudders is, of course, only applicable when the boat is moving.

The position that the horizontal rudder or rudders should occupy is a question about which much has 77been written, and opinion appears to be still divided on the subject. Some hold that they should be placed at the stern, others that they should be placed on either side of the vessel, and these latter again differ as to whether they should be forward, amidship, or aft. In spite of all the arguments in favour of placing the rudders forward, Captain Hovgaard considers that this disposition can hardly be recommended except in very long boats where it may prove a necessity. The Gustave Zédé has six diving rudders, two forward, two in the centre, and two aft; whilst in the Narval class there are four rudders, two forward and two aft; the Holland submarines have aft rudders only.

Control in the Vertical Plane.

That beautiful machine, the Whitehead torpedo, is maintained at a set depth below the surface by means of a pendulum and a hydrostatic valve which regulate the horizontal rudders, and also in its true course by the gyroscope. In the case of the submarine it is necessary that it should not pass a certain limit when on its downward course, and that it keep so far as is possible the same level throughout its run under water.

The control of the submarine in the vertical plane may be accomplished by the manipulation of the rudders, either automatically, by means of some such arrangement as the hydrostatic valve or pendulum, or by hand, and she can be kept on an even keel and prevented from rising to the surface 78or sinking to the bottom, when running beneath the waves, by the pumping of water from a reservoir situated aft to one situated forward, or vice versâ, by the admission of water into trimming tanks, by shifting weights, &c. These operations can be carried out either automatically or by hand-operated mechanism.

It will be readily understood that while it is a comparatively simple matter to force a vessel beneath the surface to a depth previously determined, it is not so easy to ensure its keeping at this depth during the whole time it is submerged and maintaining throughout the run a perfectly even keel.

One of the greatest difficulties the inventor of submarine boats has to overcome is their lack of longitudinal stability. Submerged vessels are of two classes, those which are equal in weight to the water they displace, and those which are lighter. Both classes are subject to various disturbances which tend to upset their longitudinal stability and send them up to the surface and down towards the bottom. In Chapter XV. mention is made of the difficulties experienced by those who had to navigate the Nordenfelt.

The principal causes of disturbance have been summed up by Captain Hovgaard in a paper entitled, “The Motion of Submarine Boats in the Vertical Plane,” read before the Institution of Naval Architects at the Annual Meeting in 1901.

1. Faulty use of horizontal rudder. 2. Admission 79of water through leakages. 3. Expulsion of foul air and products of combustion. 3a. Firing of torpedoes and projectiles. 4. Movements of crew. 5. Existence of free surfaces of liquid. 6. Movements of loose weights, such as fuel. 7. Variations of buoyancy caused by varying density of sea water. 8. Grounding and collision. 9. Variations in speed.

Some of the most important of these disturbances may be briefly discussed.

1. Most modern submarines are provided with more than one pair of horizontal rudders, but if all the rudders should refuse to act and the boat is running down an inclined plane, the only thing to be done is to pump the water out of the tanks and thus bring the boat to the surface.

2. By the careful construction of the hull, and by strict control of all sea-valves, the admission of water may be prevented. If the boat is stove in and water enters in any quantity, she will inevitably sink. As an escape some inventors have provided their submarines with detachable boats.

3. Usually the length of the run under water will not be so great that the foul air will need to be got rid of. If necessary it can be expelled by drawing on the store of compressed air, and as the substances withdrawn will always be small, no change in longitudinal balance need be feared if precautions are taken. As all modern submarines are driven by electricity beneath the surface, the expulsion of products of combustion need not be considered.

803a. In the earliest submarine boats the torpedoes consisted of charges of explosive in cases, which were attached to the outside of the vessel to be attacked, or were towed against her sides.

Those who had little faith in the future of under-water warfare declared that a torpedo could never be fired from a tube in a submerged vessel without disastrous effects. The Nordenfelt boats were certainly not successful in discharging torpedoes, for as a general rule they as nearly as possible stood up vertically on their tails and proceeded to plunge to the bottom stern first on these occasions.

However, since then, submarines have fired torpedoes quite satisfactorily under water.

The expulsion of a torpedo from a vessel totally submerged in the water, whether equal to or less than the weight to the water displaced, naturally reduces her weight and tends to send her up towards the surface. This tendency can best be counteracted by the admission of a certain quantity of water ballast into the boat.

The method now usually followed is to allow the surrounding water to enter the tube immediately after the launch of the torpedo, and as the weight of the volume of water admitted will be about equal to that of the missile ejected, the longitudinal stability of the submarine should not be disturbed. When the second torpedo comes to be placed in the tube, the volume of water already in it must of necessity be ejected, and a compensating reservoir may be used to receive it. As each torpedo is fired 81a certain amount of water, corresponding to the weight of the projectile, must be allowed to enter the compensating reservoir. This may be done automatically.

The Engineer in a leader on January 18, 1901, said: “The discharge of a bow torpedo (by a submarine) would be instantly followed by the rise of the bow; relieved of the weight the boat would tend to stand on end. If going ahead at the time she would immediately come to the surface to be destroyed. If going astern she would plunge downwards and the consequences might be equally serious.... Torpedoes must be fired when the submarine is at rest.”

In spite of this dogma submarines have fired torpedoes whilst in motion with success, and in modern submarines ample provision is made for the loss of weight occasioned by the discharge of the torpedo.

4. Reference has been made to the fact that when the Nordenfelt boat was moving along on an even keel, and a greaser walked forward a couple of feet in his engine room, her head would go down a little, the water would surge forward in the tanks, and she would plunge to the bottom, unless checked in time. It has been said that one man going forward in a submarine boat would cause her to dive to a depth of thirty-six feet in one minute. The movements of the crew may be compensated for by automatic arrangements, but the ideal method would be one in which every one remained 82immovable at his post during the submerged run.

Steering Below Water.

Quite early in the history of submarine navigation it was found that the compass was not so reliable when the boat was navigating under water as it was when she was on the surface. This is not to be wondered at, for the compass of a submarine is placed in the interior of a tightly-closed metallic shell and in close proximity to an electro-motor and powerful currents capable of influencing it considerably, if not of rendering it altogether useless.

The principal causes of the unreliability of the compass on a submerged boat are:—

1. The currents normally produced by the electric motor.

2. The abnormal currents flowing in certain unknown parts of the hull owing to lack of proper insulation.

3. The permanent or transitory magnetisation of the hull if made of a magnetic metal.

The best position for the compass on a submarine has been a much debated point, but it is now generally agreed to be in the centre of the hull. The conning tower of the first British submarine was made of steel, but it was afterwards replaced by one of brass.

M. M. Gaget in his book^[4] states that so entirely 83untrustworthy and impracticable has steering by compass in French submarines been found, that the gyroscope has been requisitioned. He inclines to the belief that this instrument is the best indicator of route that has yet been devised, yet he points out the want of some reliable method by which the distance made by a submerged boat could be gauged with accuracy.

The question of the best method of propulsion for submarine boats must be considered under two heads, namely, propulsion on the surface and below the water.

It will be quite evident that the conditions under which a motor in a submarine works differ according as the boat is running above or beneath the surface; and we arrive at the conclusion that if the same motor is to serve for both conditions special arrangements will have to be made to permit it to work under abnormal conditions. Should this be found impracticable a new method of propulsion will have to be found for under-water travelling.

Every heat engine consumes both air and fuel (whether coal, oil, gas, &c.), and the process of absorption of the fuel is accompanied by the giving out of a certain weight of the substance in the form of gas. Whilst the boat is proceeding beneath the water its weight is continually being modified, and it is practically impossible to compensate 84for this change by the addition of water to the reservoirs. Besides this difficulty the combustion of the fuel not only absorbs a large quantity of the air which is so precious a quantity in a submerged vessel, but also sets free deleterious gases which naturally have prejudicial effects on the health of the crew. It may therefore be asserted that a submarine can only be propelled under water by means of a motor capable of working without combustion or loss of weight. It remains therefore to discover the most suitable method fulfilling these conditions.

1. By Mechanical Means such as Clockwork, Springs, &c.—The Howell torpedo is driven by means of a heavy flywheel in the interior which is spun up to 10,000 revolutions a minute before discharging by means of special machinery. While all these methods are practicable they must be put aside as unsuitable owing to the slowness of the speed which a boat thus propelled can attain.

2. Compressed Air.—In order that a submarine may be driven at a high rate of speed for a considerable distance, such a large store of compressed air would have to be carried if this method were adopted, that little space would be left in the vessel for any other purposes. In addition to this such a store of compressed air would be a source of danger.

3. Manual Power.—The earliest submarines were of course driven by hand power, but no one nowadays would think of adopting this method.

854. Steam from Heated Water.—Mr. Nordenfelt propelled his boats beneath the surface by means of the steam given off by the heated water in the cisterns, and this was found sufficient for a distance run of 14 knots. He disliked accumulators, and this is not to be wondered at, for in his time they were very far from perfect; were he designing a submarine to-day, however, it is probable that he would choose electricity for sub-surface working.

5. Chemical Engines.—Dr. Payerne, d’Allest, and others, by means of a chaudière pyrotechnique, burnt, in hermetically closed furnaces, combustibles containing in themselves the oxygen necessary for their combustion, and got rid of the products of combustion by ingenious devices.

6. Electricity.—All modern submarines rely on an electric motor for under-water propulsion, the current being derived from accumulators. The ideal primary battery and the ideal accumulator are still to seek, but the latter improves yearly, and there is little doubt that some few years hence the current available will enable the submarine to make long voyages under water with greatly increased speed. It is said that the Holland has on no fewer than four occasions burned up the armature of her motor, and some device seems to be wanted to keep the armature cool.

7. Carbonic Acid.—Many attempts have been made to construct an engine which can be worked by liquid carbonic acid, but the general result, as 86some one has said, has hitherto been that the inventors have been more or less broken up in body and mind.

8. Liquid Air has been suggested as a propelling agent for submarines, but up till now it has not been applied for such a purpose. A motor-car propelled by liquid atmospheric air was shown at the Agricultural Hall in April last, and some energetic Americans are endeavouring to “boom” this elusive substance in this country. More sober investigators have, however, little faith in an immediate commercial future for liquid air.

INSIDE THE “GOUBET.”

While the “Holland” boats for the British and 87United States navies are driven on the surface by a gasoline engine, this type of motor has not yet been used on the French boats, a steam engine fed with liquid fuel being employed in the Narval and vessels of this class, while in the Gustave Zédé, Morse, &c., electricity is the sole motive power both above and below the waves. Le Yacht states that France has always avoided the use of gasoline owing to the danger which arises from its presence on board submarine craft.

THE GASOLINE ENGINES OF THE FIRST BRITISH SUBMARINES.

(a) The Steam Engine.—In the Nordenfelt boat steam was raised, when running on the surface, by the burning of coal, but of late the advances 88that have been made by the employment of liquid fuel have led to the employment of this combustible for submarine boat propulsion in preference to coal.

The great drawback at present to the use of the steam engine is the length of time necessary for the unshipping of the chimney, the cooling of the engines, &c.

(b) The Oil Engine.—At the present time there is no oil motor in existence of sufficient power to give even moderate speed to a large boat, but the ingenuity of the engineer will probably overcome this drawback.

Those who make the dogmatic assertion that the submarine boat cannot be very fast because she cannot be endowed with much power, remind one of the wiseacres who were so convinced that steamboats would never replace sailing-vessels, nor steam locomotives the horse-drawn coach.

“The power required to impel a vessel through the water is augmented by her submergence. If 5,000 1–h.p. are required to drive a displacement of 120 tons at 28 knots, then rather more power will be required to drive 120 tons wholly submerged at the same speed.”

This statement appeared in the Engineer in the early part of 1901, but it appears that an exactly opposite opinion is held by many eminent authorities. For instance, at the discussion which followed the reading of Mr. Nordenfelt’s paper on Submarine Boats at the Royal United Service Institution 89in 1886, Mr. Anderson, C.E., stated that it was well known through the late Mr. Froude’s investigation that a fish-shaped vessel under water was in much more favourable circumstances for obtaining high speed than any vessel on the surface of the water, because it had been established theoretically that a vessel of easy lines completely submarine met with no resistance at all except the skin friction of the water, no resistance, that was to say, such as that which arose from the bow wave.

Mr. Anderson went on to say that he believed that if Mr. Nordenfelt would apply a little more ingenuity and perseverance to the perfecting of his boat, the result would be the attainment of a very high speed under water, and consequently a most formidable vessel. Mr. Nordenfelt himself said that it was absolutely proved that the speed below for a given consumption of fuel for a given boat must be greater than the speed above, and Mr. J. J. Thornycroft recently explained to an interviewer that the resistance is less for a completely submerged body than one travelling on the surface, because no waves are created. “The water that is displaced in front,” he said, “simply closes in behind and helps to push the body forward. A boat moving on the surface throws out waves in front and on either side, and that means an absolute loss of energy. You will find that for this reason a ‘Whitehead’ torpedo travels faster under the water than on the surface.”^[5]

The armament of the boats designed by Bushnell and Fulton was a case of explosive; the armament of the David that sank the Housatonic was a spar-torpedo, but the armament of all modern submarines is the automobile fish torpedo. Mr. Holland in his earlier designs provided his boats with guns, but submarine cannon firing heavy shells have since been discarded.

In the new British submarines one torpedo expulsion tube is fitted at the extreme forward end of the vessel, opening outward 2 feet below the light water-line. Five Whitehead torpedoes, each 11 feet 8 inches long, are carried.

It may safely be said that no difficulty will be found in getting sailors to form the crew of a submarine boat in time of war. Great Britain, the United States, France, and other great naval Powers have only to call, and hundreds of brave fellows will volunteer, however great the odds against which they may have to fight. This being the case, our naval constructors must see to it that every precaution is taken to make the boats as safe and as habitable as possible.

The accidents to which a submarine is subject are many. The most serious is passing the safe limit of depth. If she descends beneath this limit the pressure will increase; her hull will be battered in; she will diminish in volume; her downward course will be rapidly accentuated, and there must inevitably follow the crushing in of the boat and the death of the crew.

91

THE ARMAMENT AND THE PERISCOPE OF THE “GOUBET.”

93For every boat there is a limiting depth, beyond which she must not go. While it is quite possible to construct a boat strong enough to resist the pressure at depths of 50 fathoms and over, it will not be necessary to go deeper than 5 to 6 fathoms, or enough to clear the keel of a big ship. Still it will be well to give the boat a hull capable of resisting pressures greater than those she will normally encounter. By means of a hydrostatic valve or some similar arrangement, the submarine may be kept from diving to too great depths.

It is said that the “Goubet” boats can withstand the pressure at a depth of about 5,000 feet, or very nearly a mile beneath the surface; the “Holland” boats can navigate with safety at 150 feet, a depth quite sufficient for all practical purposes.

The French submersible Silure was recently sunk to a depth of 134½ feet, and it was found that the hull was compressed to the extent of 1–25th of an inch. No inconvenience was felt by the crew greater than that experienced at a depth of 20 feet.

Submarines possessing floatability have the power of rising to the surface should any accident happen to the motive power, steering gear, machinery, &c., and automatic arrangements are provided for working the horizontal rudders in order to keep 94the boat on an even keel. Some accident might, however, cause the boat to begin to sink, and the advisability of the submarine carrying a false bottom or detachable keel has been pointed out, as this could be dropped in an emergency, causing the vessel to rise at once to the surface.

The vessel Le Plongeur carried a detachable boat, and Captain Hovgaard in his design also supplied such a boat. It was made to stand the same pressure as the submarine itself, and rested on a saddle-shaped packing, against which it was tightly pressed down by means of a number of clips. Inside the packing was a circular door in the boat and a corresponding and smaller one in the ship arranged in such a way that it was possible to get up into the boat, close the lower lid in the ship, and then the lid in the boat. This done, all the handles of the clips were turned and the water would probably enter the space inside the packing, and if not it might be made to do so through a small pipe leading from the outside to the space, and provided with a stopcock. The boat would now have a certain buoyancy, but would hang on in two main clips, placed one at each end of the detachable boat on mechanical connection with each other so that they could only be let go both at the same time, thereby preventing jamming. When these clips were opened the boat would ascend to the surface; communication with the vessel, if somebody should be left behind, might be kept up by telephonic connection.

95M. Goubet, M. Drzewiecki, and other inventors provided their vessels with means for being propelled by the crew, working either oars or pedals, in the event of the machinery failing to act.

Respiration, or breathing, is a part of the life of all organisms, whether animal or vegetable. Air is taken into the lungs; the oxygen is absorbed, while the carbonic acid is given back again to the atmosphere. The respiration of human beings or animals in closed chambers to which the air is denied access is not possible beyond a certain period. The oxygen is sooner or later, according to the size of the chamber, used up, and the air becomes so vitiated with the carbonic acid expelled by the lungs that the vital functions of the body are arrested.

Many of the earlier submarine boats carried no reserve of air, as the time that they were intended to remain under water was not long.

Reference is made in old writings to the “chymicall liquor” supposed to have been used by Cornelius Drebbel to restore the purity of the air in his under-water vessel, but what its composition was we shall never know.

The air required for respiration in a submarine vessel may be supplied in two ways.

1. By some chemical method which purifies and regenerates the vitiated air.

2. By compressed air or oxygen carried in special reservoirs.

3. By pipes leading down from the surface to the 96submerged vessel through which fresh air is drawn and the foul air expelled.

4. By the return of the boat to the surface and the taking in of a fresh supply of air.

Such substances as caustic soda, lime, bromide of magnesium, &c., are capable of absorbing carbonic acid, and have been used, but modern submarine vessels rely on compressed-air compartments. M. Calmette, in his account of his voyage under water in the Morse, says that thanks to the labours of a commission formed by M. de Lanessan the difficulty of respiration has been satisfactorily overcome, with the result that the crew can remain for sixteen hours under water without the slightest strain. This may refer to the discovery by M. Georges Jaubert of a chemical substance of comparatively light weight which in one single operation can not only completely remove from vitiated air the carbonic acid, water vapour, and other non-respirable products, but can also automatically restore to it in exchange the exact mathematical quantity of oxygen which it lacks. In other words the substance when placed in contact with air vitiated by respiration can completely regenerate it and restore to it its original qualities. This wonderful substance, the composition of which has not yet been made public, has been the subject of some communications by Dr. Laborde to the Paris Academy of Sciences. In these it is mentioned that experiments were being made under the auspices of the Minister of Marine, and that these had 97proved that with 3 to 4 kilos of this new product it was possible for a man to live for twenty-four hours in an hermetically closed chamber.

When completely submerged the submarine boat is practically blind, and it is impossible to steer it by direct vision through the water. However slow its course the steersman would be unable to stop it before an obstacle which rose suddenly into the restricted circle of his aquatic vision, and he is therefore obliged to steer his course by means of bearings taken before descending.

At one time inventors believed that some light would come down through the water to help the steersman, but it is now acknowledged that once below the surface the boat is in impenetrable darkness. Some have proposed the use of a powerful electric projector which would emit a beam of light sufficient to light up a path 50 to 60 metres long in front of the submarine.

Unfortunately such an arrangement is not possible in practice. In the first place, such a projector would be of great size and weight and would require a considerable amount of current, but even if it were installed on a submarine it would be of no use to those on board for the reason that they would be placed immediately behind it and would be able to distinguish nothing owing to the great glare. The projector’s light would also be likely 98to betray the position of the submarine owing to the rays finding their way to the surface.

A submarine boat when navigating as an ordinary torpedo-boat on the surface or in the “awash” condition can be steered from a cupola or conning tower fitted with windows, which is affixed to the top of the hull, and which remains above the water when the hull is below.

It was asserted that such a cupola would not only be of no use beneath the waves, but would also be a disturbing element in the equilibrium of the boat, reducing its speed. For this reason the Gymnote and the Gustave Zédé were provided with telescopic domes capable of being pushed up or down at will. The arrangement was very complicated, and did not give good results, so it was abandoned, and all modern submarines carry a fixed dome on their deck platform.

When the submarine is submerged to a depth not greater than 10 to 12 feet such aids to vision as the optical tube and the periscope may be employed, but when the depth exceeds this limit the helmsman must rely on his compass, coming from time to time to the surface to verify, and, if necessary, rectify his route.

The periscope (from the Greek περι, around, and σκοπειν, look) is applied to an instrument by which objects in a horizontal view may be seen through a vertical tube. It may be said to consist of a vertical tube with a lenticular total-reflection prism at the top by which horizontal rays are projected downward 99through the tube and brought to a focus, after which they are received by a lens, the principal focus of which coincides with that point. The vertical cylindrical beam thus formed is converted into a horizontal one again by a mirror inclined at 45° from the vertical axis of the tube, and is thus conveyed to an eyepiece through which, by turning the tube on its vertical axis with its attached prism, a view of all the supernatant objects around the vessel may be obtained. A screen or diaphragm operated by a tangent screw is used to cut off the view of the vertical plane in which the sun is. When used on a submarine boat the top of the periscope floats on the surface.

The optical tube with which the Gustave Zédé was at first provided before she carried a periscope consisted of a lens and a prism on the top of a tube, and the image of the surface was thrown on to a surface of paper. By the aid of the picture on the sheet of white paper the steersman could, under certain circumstances, tell approximately where he was going.

A writer in a recent number of the Debats has something to say about vision below water.

“We certainly possess these vessels capable of navigating under water, which is no small advantage, but in order that they may be able to fight under these conditions and become really effective fighting machines the question of vision will have to be perfectly solved. The Moniteur de la Marine affirms that the periscope, the apparatus intended to secure this power of vision, perfectly fulfils its object. It gives, six 100metres under water, a good enough view of what is going on upon the surface to enable a boat to steer towards the enemy’s vessel without the necessity of rising to the surface to make observations which quick-firing guns would render dangerous. No less an assertion than this is necessary to shake certain doubts on this point which will be shared by all who have been in a position to observe the troubles caused to the vision by the water and vapour on ground glasses. Only those who have used this instrument have the right to say with Polycente, ‘Je vois, je sais, je crois, je suis illuminé.’

“We who have not seen cannot go so far as this. It is also necessary that the images given by the periscope should be susceptible of rapid measurement, sufficiently accurate for the officer in command to be able to know if he is near enough for his torpedo to prove effective.

“In a word, the Sous-Marin and the Submersible are at present marvels of applied mechanics. They will be fighting machines only when the problems of vision and accurate measurement of distances are fully solved. If this result is reached we shall not long be kept in the dark, for with modern parliamentary methods all over the world we shall witness the simultaneous appearance in all naval budgets of demands for considerable sums in order to construct these vessels.”

A device for submarine vision, termed the cleptoscope, and invented by Messrs. Russo and Laurenti, is reported to be used on the Italian submarine Delfino. In its original form the instrument, according to the Lega Navale, gave an exact view in a closed chamber of all that was to be seen round about a submarine to any one applying his eye to a small eyepiece. In its later form it gives the same image much enlarged, and visible to both eyes at once at some distance from the chamber.

101As an illustration of the disadvantages arising from the fact that the submarine is blind, the following story may be told, the accuracy of which cannot however be vouched for.

An Italian submarine went out on one occasion for practice. All at once the crew found that they could neither go ahead nor astern, nor could they rise to the surface. They pumped out the spare water that was provided to give additional buoyancy, but with no effect. The heavy lead keel provided for an emergency was at last detached; still the boat refused to rise, and the crew gave themselves up for lost.

The Port-guardship was riding in the anchorage, and fortunately her captain heard a scraping and knocking which could not be accounted for at the bottom of his ship. It occurred to him at last to signal to the station on shore asking if the submarine boat was out for practice, and on being told it was, he shifted his anchorage, whereupon the submarine boat came to the surface with a rush like a cork, and the crew were rescued in a very exhausted condition.

The optical instrument used on the new British submarines is termed the “Hyphydroscope,” and is the invention of Sir Howard Grubb, F.R.S.

“The Torpedo has brought into the Navy a fresh zest, a new romance, and possibilities more daring than were ever existent before its adoption.”

“A blending of the heroic, the marvellous, the mysterious, and the imaginative in actions, manners, ideas, language or literature; tendency of mind to dwell upon or give expression to the heroic, the marvellous, the mysterious or the imaginative.”

Such is one of the definitions given in the “Century Dictionary” for the word “romance,” and as in the following pages there will be much of “the heroic, the marvellous and the mysterious,” there is every justification for using the term in connection with under-water warfare.

Some months since the writer was standing on the pier at Kyle of Loch Alsh, a tiny village in South-west Rosshire, waiting for the boat going south to Oban.

The sky was leaden, and ever and again a squall swept over from Skye and blotted out the landscape for a time. Presently a little shiver of excitement ran through the group of tourists, fisher folk, and idlers gathered at the pier head. All eyes were directed up Loch Alsh, and for a few minutes it was difficult to discover what it was that was attracting so much attention.

104Gradually there came into sight the first of a little flotilla of torpedo boats, making their way, in single column, line ahead, to the open sea. Each was painted black from bow to stern, each bore a number in place of a name, and each crept along like a snake, surprised at finding itself observed, and anxious to escape from the haunts of men. One by one they passed by, gathering speed as they went, and in a little while the last had disappeared into the mist and the rain and nothing remained to show that they had passed save a few white patches of foam scattered over the sullen waters.

What were the thoughts uppermost in the minds of those who watched these tiny engines of destruction? Were they not of the next occasion on which Great Britain shall require her navy to assume the offensive and “to take arms” against the foe that dares to threaten her proud supremacy?

Were they not of the fate of the crews of these vessels in the next great battle on the seas, and of the part they will be destined to play when the “Real Thing” comes?

The torpedo boats and the destroyers of His Majesty’s Navy are manned by brave and fearless officers and men, who take a keen interest in their work and who mean to show of what their ships are capable if ever they get the chance, while the torpedo lieutenant on a battleship, in spite of the good-humoured sneers of his brother in arms, the gunnery lieutenant, is not a whit less determined 105to inflict some injury with the weapon which is his especial care. The commander of a destroyer when he lies down at night in his “duffle suit” and endeavours to take his well-earned repose dreams of a naval action in which he plays a prominent part. It is a night attack, and the destroyers have orders to seek the enemy and torpedo him. As silently, and withal as speedily as possible, the mosquito fleet starts on its deadly mission. The pace is tremendous and our commander, his nerves braced, his heart beating, and his mouth set, peers forth from the conning tower into the darkness. His funnels are flaming slightly but he dare not slacken speed, and all he can do is to pray Heaven that they do not betray him. Suddenly the foremost ship begins to signal. The quarry is discovered! Onward rush the destroyers, and out to meet them come the destroyers of the enemy. The twelve-pounders and the six-pounders are brought into play, and the fight between the opposing forces waxes fierce. So far our commander and his craft have escaped injury and the boat tears along, dodging its foes like a three-quarter in Rugby football. He has set his heart on torpedoing a mighty ironclad steaming ahead with her consorts at some sixteen knots speed, and he means to get past the hostile destroyers or die in the attempt. Shells are bursting all around and his armoured conning tower has been hit, but so far luck has favoured him. Will the gods be kind and allow him to accomplish his desire? He is 106now within torpedo range, and the moment has arrived for the firing of the first torpedo. Out of its tube rushes the Whitehead, plunges beneath the waves and is seen no more. A few anxious seconds and then the commander knows that it has missed its prey. Another must be fired, but the ironclad is unpleasantly near, and her quick-firing guns are already discharging on him a heavy and continuous fire.

The second torpedo is fired, and the destroyer waits not another second but makes away at topmost speed. But “her mission is through.” The sound of a mighty explosion is heard and the commander knows that he has accounted for one of the battleships of the enemy.

The lieutenant of to-day thanks his stars for the opportunities that the torpedo has afforded him of assuming the command of a torpedo-boat or a destroyer at an early age, or of acting as torpedo lieutenant on a big ship. There is no fear of his rusting or of his finding his life uneventful while such posts as these are open to him, and there is also the chance of his acquiring great fame when the day of battle comes.

“... They are young,” says Mr. Rudyard Kipling, “on the destroyers,—the chattering black decks are no place for the middle aged—they have learned how to handle 200 feet of shod death that cover a mile in two minutes, turn in their own length, and leap to racing speed almost before a man knows he has signalled the engine room. In these 107craft they risk the extreme perils of the sea and make experiments of a kind that would not read well in print. It would take much to astonish them when, at the completion of their command, they are shifted say to a racing cruiser. They have been within spitting distance of collision and bumping distance of the bottom; they have tested their craft in long-drawn channel jobs, not grudgingly or of necessity because they could not find harbour, but because they ‘wanted to know, don’t you know,’ and in the embroilment have been very literally thrown together with their men. This makes for hardiness, coolness of head, and, above all, resource.”

There is yet another dream that is dreamed by the younger of our young naval lieutenants, and this relates to an engagement in which the diving torpedo-boat plays a part.

Great Britain is at war with a rival Power; hostilities have barely commenced, and one of the enemy’s swiftest cruisers has been sent to gather information as to the probable movements of the British squadron. Her captain is noted for his daring and resource, and he has succeeded in obtaining news of a valuable character respecting the condition of our ships and their immediate destination. Accompanied by two first-class torpedo-boats, he has come, has seen, and is now making off to join his fleet and to relate his news to the Admiral. It is of the utmost importance that his message should not be delivered; the British fleet 108is not quite ready to strike, and it does not wish the enemy to know this. Onward steams the cruiser, the fastest vessel of her class in the world. It is broad daylight, and she can be seen by our own cruisers who, unhappily, are half a knot slower than she is. British destroyers have attempted to torpedo her as she steams quickly by, but her quick-firing guns and her attendant torpedo craft have so far foiled their purpose and the daylight is against them.

There is only one chance—the submarine flotilla.

It is lying off a port which the cruiser must soon pass on her way down channel, and a wireless message which the cruiser is powerless to intercept has been sent to the commander of the “mother ship,” a torpedo gunboat, to send out his tiny fleet and endeavour to torpedo the cruiser. The “catcher” has no chance herself against the enemy’s swift torpedo-boats, so she keeps in the background ready to render assistance to her “ducklings” should they happen to require it.

The cruiser and her attendants is sighted, and the order to dive is at once given. In a few moments there is nothing to be seen of the five boats, and the look-out on the cruiser is in blissful ignorance of his hidden foes. Suddenly Submarine No. 1 comes to the surface to take bearings. She is observed by the look-out, the quick-firers are immediately trained on her, and the torpedo-boats, with booms slung out, rush to the attack. But she has disappeared before they can reach her, and no 109one has any idea which direction she has taken. The excitement is intense. The hearts of the cruiser’s captain and crew beat fast, and eager eyes scan the face of the waters for any sign of the submarines, but there is nothing to be seen. All at once a lieutenant on the cruiser gazing down into the water shouts to his captain. He has seen a submarine missile, but it is too late! The torpedo strikes, an explosion ensues, and the cruiser’s fate is sealed. Her satellites dart hither and thither like policemen in chase of a burglar, but their prey has eluded them and is now making off to fort. The commander of the submarine flotilla has done his work well. After coming momentarily to the surface he dived below and by wireless telegraphy communicated to the other vessels the position of the cruiser, her speed and her direction: calculations were made, and at a given signal all five discharged their torpedoes. Four missed, but one was more fortunate and was enough to encompass the destruction of the enemy. After the explosion the commander threw his tiny periscope on the surface and as a glance assured him that the cruiser would float no more, he made off with his boats to the shelter of port.

The two destroyers did not escape; hunting for the submarines they forgot to consider the possibility of an attack on themselves, and it was only when they saw four British destroyers at no great distance that they sought refuge in flight. But they had delayed too long. The four point 110sevens had something to say to them, their own three-pounders were quickly silenced, and they were soon drifting about channel, hopeless wrecks.

THE “GOUBET” OUT OF WATER.

111

INTERIOR OF A BRITISH SUBMARINE.

“I think that the enthusiasm with which in some countries, the studies and the building of submarine boats have been accompanied is in great part due to the feeling implanted in human nature, by which danger appears the greater in proportion as it is more mysteriously and insidiously able to threaten the existence of its adversaries” (Rear-Admiral Bettolo, in “All the World’s Fighting Ships,” 1901).

It was once said that the principal value of all methods of submarine warfare was analogous to that of the notice board which tells the would-be burglar to “Beware of the dog.”

In the face of a warning such as this the burglar is forced to take a rapid survey of the situation. In the first place, he cannot tell whether there really is any dog on the premises at all, and secondly he has no means of discovering whether 112the animal, if there be one, is old, blind, or decrepit and thus worthy of being disregarded. Which is his best plan? to take his chance and trust to luck or leave the place severely alone and look out for some other establishment where no such notice meets his eye?

Some burglars might take one course and some another, according to their individual temperament, but at any rate the warning serves this purpose, that it causes the would-be house-breaker to pause before he commits his crime, even if it does not act as a complete deterrent.

What the notice board is to the burglar, the mine, the torpedo, or the submarine boat is to the naval officer, and in laying his plans he must take into consideration the possibility of being blown up by one or other of these methods of under-water attack. “The King’s Navee” has no lack of brave men ready to risk their lives at a moment’s notice, and a British officer if told to accomplish any task would as soon think of replying that there were mines, torpedo-boats, and submarines in the path of his advance as he would of going into action in a frock coat and a silk hat.

He will undertake his task cheerfully and instantly, and he knows he can rely on the support of his crew, but at the same time it is impossible both for captain and crew to disregard absolutely the unseen dangers that may lie in their way.

Though this will not prevent a British warship from going wherever it is bid, yet the knowledge 113that they may at any moment be sent to the bottom by the explosion of a submarine mine or by the blow of a Whitehead torpedo, must of necessity make them nervous and will very likely have a bad influence on their powers of shooting straight. “The presence of mines,” says a naval writer, “has a moral effect upon crews which does not altogether improve their shooting.”

So great has been the recent improvement in the matériel of under-water warfare that we have no chance of gauging accurately its potential effect from a moral point of view. The mines, torpedoes, and submarines hitherto employed in naval engagements are excessively crude when compared with their modern equivalents, and the countries which have used them have not been those most skilled in the practice of such weapons. There is, however, sufficient evidence both from naval wars and also from mimic battles to show that the mine, the torpedo and the submarine will exercise a considerable moral influence when the next great fight on the seas takes place.

There have been those who have declared that those who handle such weapons will be far more subject to moral and indeed physical effect than those against whom they are directed, and though this may be true of certain navies it is certainly not true of the British.

It would be possible to quote many instances, both of cases in which submarine defences have prevented the carrying out of certain operations 114and also of other cases where they have been disregarded. Just as there have been audacious burglaries in spite of “Beware of the dog” notices, so there have been daring attacks in spite of known submarine defences. There is always in warfare the possibility that the mine may fail to act at the critical moment, that the torpedo may not succeed in firing its mark and that the submarine boat may miss its prey.

The first occasion on which the moral influence of modern under-water methods of warfare made itself felt was during the American Civil War.

The story of Admiral Farragut’s entrance into Mobile Bay, on August 5, 1864, is a well-known instance of a commander advancing in spite of known dangers beneath the waves. It has been admirably told in the life of the Admiral by Captain A. T. Mahan. The channel was known to be sown with mines and one of his ships, the Tecumseh, had been sent to the bottom already by one of these unseen weapons. The Admiral reasoned thus: “The chances are that I shall lose some of my vessels by torpedoes or the guns of the enemy, but with some of my fleet afloat I shall eventually be successful. I cannot lose all. I will attack regardless of consequences and never turn back.” As the Hartford passed the Brooklyn a warning cry came from the latter that there were torpedoes ahead.

“Damn the torpedoes!” shouted the Admiral in the exaltation of his high purpose. “Four bells! 115Captain Drayton, go ahead. Jouett, full speed!” The Hartford and her consort crossed the line about 500 yards from Mobile Point, well to the westward of the buoy and of the spot where the Tecumseh had gone down. As they passed between the buoys the cases of the torpedoes were heard by many on board knocking against the copper of the bottom, and many of the primers snapped audibly, but no torpedo exploded.

The Hartford went safely through, the gates of Mobile Bay were forced, and as Farragut’s flag cleared the obstructions his last and hardest battle was virtually won.

Mines had been plentifully sown by the Confederates, and across the deep water 180 had been placed in a double line. The most effective were those made of lager beer kegs coated with pitch and fitted with a number of sensitive primers; the others had tin or iron covers, but they corroded in the water and quickly became harmless. In addition, there were three electro-contact mines which were to be exploded from Fort Morgan. Had the mines been in an efficient state Admiral Farragut and his fleet would assuredly have gone to the bottom. He took the risk—and won.

Turning now to the other side of the picture it will be found that hidden enemies are always the most dreaded, and that the history of naval operations affords many examples of their moral influence hindering the carrying out of certain operations.

116In the actions off Charleston, in the American Civil War, the mines and obstructions so influenced Admiral Dupont that he was content to maintain the blockade instead of risking his ships against them.

One of the clearest cases of the moral influence of submarine mines occurred during the Franco-Prussian War, when the French fleet were prevented from entering Prussian harbours simply through fear of submarine dangers. The naval campaign of 1870 consisted solely of the watching by a strong French squadron of North German ships which had taken refuge behind a reputed impassable barrier of subaqueous defences.

“The power of the French steamships,” writes Admiral Cyprian Bridge, “to stand in within practicable range of their heavy guns, and do enormous mischief to the rising naval establishment of the Bund as it then was, was completely set at nought by the subaqueous defensive system which the weaker force had devised to redress the inequality between it and its rival. We shall do well to mark the results; the stronger navy did and could do practically nothing; the smaller one preserved itself from injuries, and at the close of the war still existed intact, as a nucleus for that splendid force, which is now (October, 1878) third amongst the navies of the world.”

During the Franco-German war the French fleet was kept off a fort by a harbour protected by dummy mines. The story goes, that when the mines arrived, the burgomaster was afraid to charge 117them, and laid them out empty. At the completion of the war, when the dummies were taken up, the burgomaster was congratulated by several consuls on the masterly way in which he had performed his perilous task, no loss of life having been caused.

There are so many instances of mines failing to explode or if exploding, doing no damage, that naval officers may well declare that the submarine mine is nothing but a “military bugbear.” In 1863, during the American Civil War, the New Ironsides halted off Fort Sumner, and just over a submarine mine containing 2,000 lbs. of powder, which failed to explode when fired from the battery, as one of the wires had been accidentally severed by a waggon passing over it.

Instances of the moral influences of the torpedo are afforded by the two most recent naval wars, the Chino-Japanese and the Spanish-American, and by the manœuvres of the fleets of Great Britain, France, Germany, and Russia.

Although the Chinese officers were quite unable to use the torpedo with any effect, and evidently regarded the weapon as of more potential danger to themselves than to the enemy, the Japanese commanders on more than one occasion decided against certain movements, owing to a fear of the Chinese torpedo flotilla.

During the Spanish-American war, the Americans suffered severely from “torpedoites,” and were continually fancying they saw Spanish torpedo-boats, 118and firing on them, when in reality there were none present.

As an American officer remarked, “whatever the actual shortcomings of a torpedo-boat flotilla, it must always act at least as an admirable anti-soporific.” As to the Spaniards they appeared to dread the mines they had themselves laid more than did the Americans.

One of the most amusing cases of the moral influences of torpedo warfare was related by Vice-Admiral Sir Nowell Salmon at the Royal United Service Institution in 1892.

Sir Nowell was discussing the question of the value of the electric searchlight on battleships in warding off torpedo attack. He was inclined to think that he would rather not have it at all, for on any occasion that he had seen, whether it had been at a fixed station on shore or whether it had been a fixed station on board, making a quadrangle within which ships might lie, the torpedo station had always been the point of attack, and had always suffered. In one case in which he put a squadron inside four ships to make a path of light round them, the ships showing the light were of course at once the point of attack, and were all attacked and sunk; one commander indeed said that he was sunk no less than seven times.

“I can remember a little incident in which I took part. It shows how very curiously the electric light may act in some cases. The squadron inside the rectangle of light was in total darkness, and 119my boat in which I was inspecting the preparations happened to get within the beam of one of the ships showing the light. Just as this happened, I saw a boat inshore of me. I thought she was one of the attacking boats steaming up inshore. Of course I set to work to cut her off, as I was commanding the defending squadron. I steamed as hard as ever I could. I got my muskets ready and so on. Still she went past me, going inshore as I thought, and it was not until I recognised my own shadow shaking its fist at the engineer for not clapping on more steam, that I found I was chasing the shadow of my own boat thrown on the cliff. In a very few seconds I should have been hard and fast ashore.”

“The real strength of the destroyer,” wrote a special correspondent with the British fleet during the 1901 manœuvres, “consists not so much in what she can do against large ships, certainly not in what she ever has done so far, but in the fear entertained by her adversaries of the harm she is held to be capable of doing. Her menace is tremendous, and really paralysing to some minds.” This probably applies quite as much to submarines as to destroyers.

Once, and only once, has a submarine boat succeeded in inflicting any damage on an enemy in actual warfare. This was during the American Civil War when one of the Confederate Davids succeeded in blowing up the Federal frigate Housatonic, and in annihilating itself at the same time.

Before this event under-water vessels had attempted to destroy hostile craft, but with no success.

In 1776 Bushnell’s diving torpedo-boat made an attack on the English frigate Eagle, and in 1777 on the English man-of-war Cerberus and other vessels. Although it failed to inflict any injury on a single vessel, three of the crew of a prize schooner astern of the Cerberus, hauling one of Bushnell’s drifting torpedoes on board, were killed by the explosion.

In 1801 Fulton attempted to destroy one of the 121English Channel Fleet off Boulogne by means of his drifting torpedoes, but owing to the ship altering her position at the moment of setting the torpedo adrift, the attack failed. In 1804–5, Fulton, who had now joined the British forces, attacked some of the French ships, but the torpedoes exploded harmlessly. From the death of Fulton to the commencement of the American Civil War, numerous inventive minds built or projected submarine craft of all shapes and sizes, but none of these ever participated in an actual engagement.

The exploits of the diving torpedo-boats known by the generic name of David, during the contest between the Federals and the Confederates, have been fully described in Chapter XII., and there is therefore no need to dwell further on this period in the history of under-water warfare. Since then no submarine boat has ever been taken into battle, although during the Spanish-American war Spain might have used the Peral, and the United States the Holland. In mimic warfare submarines have played their part, and although no very definite conclusions respecting their possible value in time of war can be drawn from their performances in peace manœuvres, still it may not be unprofitable briefly to note the various occasions on which some of the new submarine torpedo-boats have been used.

The first of these occasions was in September, 1900, during the manœuvres of the U.S. North Atlantic Squadron off Newport, Rhode Island, when 122the Holland made an attack upon the fleet by herself, without convoy, at a distance of seven miles out from the mouth of the harbour, and, with her own crew alone in her, torpedoed the flagship of the squadron, the Kearsarge, commanded by Capt. Wm. M. Folger. Lieut. Caldwell, who commanded the Holland on this occasion, wrote regarding the incident:—

“The Holland was not seen by any vessel of the blockading fleet or torpedo-boat, although she was within torpedo range of three of the former and several of the latter. I consider the attack was a success because the Holland could in all probability have torpedoed three blockading vessels without being discovered.”

It must be added that Admiral O’Neil, who has but a poor opinion of the value of submarines in war, has written as follows: “.... On September 25, 1900, during some manœuvres of the North Atlantic Fleet off Newport, Rhode Island, the Holland, on a very fine evening and under exceptionally favourable circumstances, steamed seven miles as a surface boat only outside Newport harbour, and like the torpedo-boat Porter, claims to have put the battleship Kearsarge out of action, which was not allowed by the umpire, as it was decided that the Kearsarge had already been put out of action by the torpedo-boat Dahlgren.”

Since this exploit of the Holland, no American submarine has taken part in manœuvres with the fleet.

From 1898 onwards French under-water vessels have often engaged in mimic warfare, and many of the French papers have published glowing accounts of their wonderful performances, but one has to accept such statements with caution. In the following story of their doings care has been taken so far as possible to represent what really took place.

THE SUBMARINE IN ACTION.

The torpedoing of the Magenta in December, 1898, by the Gustave Zédé is a famous chapter in the history of French submarines, and one of which all Frenchmen are naturally proud.

M. Lockroy in his book “La Défense Navale” has recorded the incident.

The manœuvre commenced at 3.17 in the afternoon, and the torpedo was fired at 3.28. The Gustave Zédé plunged at 3.20 for the first time; she emerged five times, and the longest appearance was 1 min. 30 secs., the shortest 30 secs.

124The three cruisers, Magenta, Neptune, and Marceau, knew the exact moment when the attack would take place, and also the exact position of the Gustave Zédé, yet though they trained their quick-firing guns upon the submarine, the judges decided that she would not have been hit.

M. Lockroy says that if the boat had carried her optical arrangements she would not have needed to come to the surface.

“The eyes of all on board were fixed on the sea; officers and men stood watching the crest of the waves, and every minute there were exclamations, or some one fancied he had seen the submarine. We imagined we saw it everywhere, and it was nowhere.

“In point of fact it was proceeding quietly and invisibly towards its mark.

“Suddenly a precise and exact observation was made. The cupola of the Gustave Zédé had just appeared 400 yards away, still abreast of us, notwithstanding the distance which we had covered.

“Immediately orders were issued. The guns were brought to bear upon her, and the quick-firers depressed in her direction. The submarine was no longer there. She was hidden from our fire and from our view. A minute elapsed. Though orders were given to the engineers to put on steam, and the Magenta had gone some considerable distance in the sixty seconds, the Admiral and I, leaning over the railing of the bridge, saw approaching us with lightning speed an elongated body shining like gold.

“It was the torpedo of the Gustave Zédé! It struck the ship about four yards below the water-line, and was smashed on the iron armour, but if it had been charged the Magenta would have been sunk.”

125The Majenta was twice successfully torpedoed, once while at anchor and once whilst steaming at ten knots, and the Gustave Zédé showed that it was quite possible for a submarine to discharge torpedoes below the water without having its equilibrium disturbed.

To accomplish the second of these feats the vessel came five times to the surface to take bearings, but on no occasion was her conning tower in view for more than 1½ minutes. The last time just before discharging her torpedo the conning tower was only seen for 30 seconds. The torpedo struck the battleship on the port side just forward of the bow barbette.

After her trial the submarine proceeded unaided from Toulon to Marseilles, a distance of 41 miles in a rough sea at 6 knots, thus showing her sea-going qualities.

When Englishmen took up their morning papers on July 5, 1901, there met the gaze such headings as “Submarine’s great feat;” “How the Gustave Zédé torpedoed a big battleship;” “New Naval Warfare;” “French Navy the most powerful in the world.”

The Paris correspondent of the Daily Express sent the following telegram to his journal:—

“The feat performed in Ajaccio Harbour by the submarine Gustave Zédé in hitting the great battleship Jauréguiberry with a dummy torpedo without her approach being even suspected, has produced a deep impression in naval circles. That the act was a brilliant piece of seamanship and gunnery tactics now 126admits of no question, though full details are not yet forthcoming. The facts, according to the concurring testimony of the Paris journals, are shortly these: The Mediterranean division of Admiral Gervais’ great fleet, which is under Admiral de Maigret, and has its headquarters at Algiers, had put into Ajaccio to provision, and yesterday morning steamed from the harbour in three lines, the torpedo-boat flotilla leading, then the cruisers, and the two battleships Charles Martel and the Jauréguiberry in rear. All the other ships had got well under way, and the Jauréguiberry had just moved from her moorings, when she was struck by a dummy torpedo by an invisible enemy. Instantly the quick-firing machine guns were set to sweep the sea, and signals sent the torpedo flotilla scouring in all directions to search for the mysterious foe. The chase being quite fruitless, the division finally steamed away, and then, the coast being clear, there popped up to the surface, like a dark spectre from the nether world, the submarine Gustave Zédé. Vice-Admiral Menard, who commands the Northern Squadron, with headquarters at Toulon, hearing that his adversary was provisioning at Ajaccio, had despatched the submarine from Toulon on Tuesday night on the mission which was to put the efficacy of submarines in practical warfare to a supreme test. The sequel shows that she had accomplished her voyage, taken her observations, gone under water, and after allowing the whole division to pass, had struck with unerring aim, and with complete success, at the most formidable vessel in it. This perfect mastery of the position shown by the submarine constitutes the most striking part of the achievement, which can only be minimised by assuming on the part of the Mediterranean squadron a degree of carelessness difficult to understand, considering that the order had been given to act in all things as in real war. After every deduction has been made, however, there is no disputing the fact that the submarine has proved its tremendous possibilities in warfare. In consequence of this success of the Gustave Zédé the French are suffering from a bad attack of naval fever. Some would call it 127‘tête montée.’ ‘Where is Britain’s naval supremacy now?’ is a question which was often asked to-day. ‘C’est magnifique!’ say the papers, describing France’s submarine fleet. ‘By reason of her submarine division the navy of France is the most dread and powerful in the world.’”

The enthusiasm of the French was somewhat lessened by the subsequent accounts of the exploits of the submarine. It appeared that it was the battleship Charles Martel which received the Gustave Zédé’s torpedo, and that the latter, after her feat, crossed the bows of the Jauréguiberry so closely that the last named had to turn in her whole length to avoid colliding with the submarine, which in war would have been destroyed. It was also stated that the success of the Gustave Zédé was considerably minimised by the fact that Ajaccio was an “inviolate” port and that the enemy had no necessity to keep a sharp look-out when they knew themselves to be in absolute security, that the Gustave Zédé belonged to the same side as her “victim,” and that the manœuvres did not commence officially until Wednesday night, whereas the incident in question took place on Wednesday morning.

Certain cynical folk declared that the whole business was a stage-managed affair designed to gratify the popular affection the French had for the submarine, and to justify the naval department which had exploited the engine of war. The majority of the French papers, however, made the most of the Gustave Zédé’s “splendid accomplishment,” and 128seemed to imagine that the British Admiralty were terror-stricken at the notion of what French submarines would be able to accomplish in war.

The Patrie published an interview a correspondent had at Toulon with Lieutenant Jobart, who was in command of the Gustave Zédé. The officer stated that the enemy were perfectly well aware of the departure of the Gustave Zédé from Toulon in tow of the tug Utile. As Ajaccio was neared, Lieutenant Jobart dismissed the Utile, and lay on the surface of the ocean waiting for the appearance of the enemy. He soon saw two cruisers leave their anchorage, and he sank his vessel until they had passed out of sight. On coming again to the surface, he saw that the battleships were still at anchor, so he crept nearer, only sinking when he saw the big vessels moving, and after he had taken his bearings for an attack on the Charles Martel, and when the battleship passed over the Gustave Zédé, the torpedo was fired which struck the vessel, and thus warned the Fleet that a submarine was in the harbour. The lieutenant asserts that none of the look-out men on the warship observed him, but when the torpedo had been fired he rose to the surface, whereupon two shots were fired from the Fleet, and he sank at once, remaining below the surface until the last vessel of the Fleet was out of the harbour, and the submarine was beyond range. The Journal stated that Admiral Gervais had indirectly warned the squadron of the participation of the Gustave Zédé by recommending 129it to act as if threatened by an attack of submarines.

The Paris correspondent of the Times wrote as follows:—

“What will be the result of these exercises it is impossible at present to foresee, but meanwhile an event of singular, and one might even add, of grave suggestiveness has occurred—of a character, indeed, which may render these manœuvres historic. I refer to an exploit of the Gustave Zédé, which suddenly turned up in the port of Ajaccio, unheralded but safe and sound, and so completely in fighting trim, in spite of the long voyage from Toulon, that she dared even to torpedo the battleship Jauréguiberry as the latter was leaving her moorings. The unexpected arrival of the submarine created consternation. She had passed nearly the whole day at sea out of sight of land. She left Toulon in company with a tug, and may for a time have utilised the assistance thus furnished in order to economise her store of electricity. But she arrived, at all events, quite alone at Ajaccio with enough electricity at her disposal to torpedo one of the enemy’s vessels, escaped from the torpedo-boats which she surprised in her daring exploit, and again disappearing below the surface, returned without being detected to port. She entered the bay of Ajaccio completely submerged, sighted by none of the signal-stations, and was thus able to traverse the entire line of war vessels in the bay. This feat is regarded as conclusive as to the practical utility of the French submarine. It sets one speculating on the revolution which the invention of these submarine craft may, after all, make in naval warfare, in spite of incredulous over-Channel critics.”

The Temps somewhat detracts from the glory of the performance by pointing out that the Gustave Zédé was towed most of the way from Toulon, but 130added that there could be no two opinions as to the value of the subsequent success. The fleet had no suspicion of what had happened until the Jauréguiberry was struck by the torpedo. Even then it was a mystery, as the destroyers dashed hither and thither, seeking in vain for the hidden foe. When they had returned, baffled and perplexed, the submarine rose to the surface and steamed slowly alongside the great battleship, whose crew lined the sides and cheered with wild enthusiasm at the brilliant achievement which had vindicated the glory of the unconquerable submarine.

With regard to the tug which accompanied the Gustave Zédé, it was stated that she was sent with the submarine as an additional precaution, in order that she might be assured of help in case of accident, but the Gustave Zédé could have reached Ajaccio by her own motor-power. She accomplished the voyage, moreover, in a sea with waves nine to twelve feet high, but notwithstanding the rough passage, her rolling was comparatively slight.

Those who had been most insistent in arguing the value of submarine warships declared that the torpedoing of the Charles Martel proved that instead of simply serving to defend the coast, a submarine could put to sea and assail the coasts of an enemy.

After her “brilliant exploit” the Gustave Zédé left Ajaccio at 6 o’clock one evening, and arrived at Toulon at 11 o’clock the following morning, her speed averaging 8 knots.

131A Petit Journal correspondent at Marseilles said:—

“I mentioned this morning that the Gustave Zédé had arrived at 11 o’clock in the old port while still under warfare. I should like to call attention to the feat accomplished by this little boat. The Gustave Zédé had not been perceived by any of the coast signal stations, although the sea was calm, and the pilot steamer the Sentinelle went out to meet the tug Utile without suspecting that the submarine was immersed near at hand, navigating under water. Its presence was shown above water only by the tiny tricolour flag, the size of a sheet of paper, just above the surface. The Gustave Zédé entered the port and was moored at the quay among the other vessels without its presence being detected, save by reason of the little flag. This shows what service this submarine can render in time of war, and how natural and patriotic is the interest taken in it.”

On July 27, 1901, during a sham fight at Toulon, the Gustave Zédé was reported to have approached the Bouvet, on which were MM. Waldeck-Rousseau and De Lanessan, unseen, and to have fired a torpedo at the battleship whilst the Ministers and the Admiral were peacefully eating their dinners.

Commenting on this “feat,” a correspondent of the Matin said:—

“About 5 o’clock in the evening the fleet arrived at the entrance to the Salins d’Hyères. The Gustave Zédé, which was lying under the shelter of one of the islands which close the Roads, at once got under way, and from the bridge of the Bouvet, M. Waldeck-Rousseau could see it plunge, and then make its way beneath the surface straight for the Bouvet, without deviating once.

132“When about three hundred yards off, the Gustave Zédé launched a torpedo, which came towards the flagship in an absolutely straight line, showing that its course had been as admirably directed as it had been aimed. The Bouvet was struck on the starboard beam, three yards below the water-line. All those who were on the bridge saw the torpedo strike the hull, and they even heard the sound caused by the shock, and felt the slight trepidation usual in such cases, for it needs very little to cause vibration on board ships constructed entirely of steel.

“What is curious is that the torpedo, probably on account of its velocity, immediately after striking the Bouvet, glanced forward and was lost to sight. Thrown out of order by the sudden shock, it must have sunk to the bottom, for it has never been found.”

M. Waldeck-Rousseau subsequently went on board the Gustave Zédé, and after spending three-quarters of an hour on her he went away “in an enthusiastic frame of mind.”

M. Camille Pelletan, reporter of the Budget of the Ministry of Marine, said:—

“That a submarine should plunge beneath the surface of the water, and that it should then be able to discharge a torpedo, does not prove very much. There is no vessel of this description, however indifferent it may be, which does not accomplish as much. The whole question is to know its navigable sea-going and manœuvring qualities. If the Gustave Zédé, therefore, in or near a harbour, torpedoed an ironclad, that, I repeat, proves nothing. The unfortunate thing is that it does not appear to have accomplished even that on the occasion referred to, for all efforts to find the torpedo have failed, and it is thus permissible to suppose that it missed its mark. I do not think that M. Waldeck-Rousseau could have seen the submarine 133effect its submersion and make for the Bouvet. The foremost quality of a submarine—its special guarantee of security—is that of being invisible. The Gustave Zédé will speedily have to be laid up if she betrays her presence so clumsily, but I have not much difficulty in reassuring myself. At the most, the Gustave Zédé could only have been seen when, instead of the vessel being nine feet below the surface, her optic tube, and probably even her cupola, were emerging above the water, an operation which is necessary for the discharge of the torpedo in the desired direction.”

In July, 1901, the Morse made an attempt to torpedo the coast-defence ship Jocyte. According to one report the Morse was ordered to sail from Cherbourg to Havre, and go for the gunboat Coeyte, which would be found moored in the Roads. Reaching Havre at night-time, the Morse, while still an hour’s run out, plunged, and continuing her voyage at eight knots an hour, approached the Coeyte unperceived, and launched three torpedoes against, her with success. The Morse then came to the surface, and was recognised by Admiral Fournier, who was on board the Coeyte. A feature of this particular experiment was the long preliminary voyage made by the submarine. Reuter, however, sent the following message relating to the same experiment: “The attempt made by the submarine Morse last night to torpedo the coast-defence ship Jocyte (sic) did not succeed, owing to the state of the sea, but the manœuvre gave certain results as showing the ability of the submarine to approach without detection. The swell prevented any torpedo 134from being fired.” A Dalziel message is still more emphatic as to the failure. It states that the gunboat knew long enough ahead of the approach of the submarine to repel the attack. No torpedo could be discharged because of the swell.

In December, 1901, the Narval and Morse defended Cherbourg from an attack by the coast-defence ships Bouvines and Valmy, and torpedoed these vessels, those on board not being aware of the presence of the submarines until they rose to the surface.

During some manœuvres at Cherbourg in January, 1902, the two guardships Bouvines and Tréhouart, and the torpedo-boat destroyer Cassini were attacked by the five submarines, Morse, Narval, Triton, Espadon and Français.

The Bouvines was hit at 100 yards by a torpedo fired from the Morse, which steered by periscope without showing above the surface; the Tréhouart was attacked by the Triton and the Espadon; the former came to the surface as a fishing boat got in her way, and she was put out of action; the latter fired a torpedo, which hit the Tréhouart. The Cassini evaded the Morse, but passed within range of the Français, and was torpedoed by her.

Thus of the five submarines one was put out of action, whilst all three warships were destroyed.

In March, 1902, combined manœuvres of the coast-defence ships Valmy and Jemmapes, and the submarines Algerien and Français, took place; the Algerien was able unperceived to torpedo the 135Valmy, while the Français succeeded in directing a torpedo at the Jemmapes. In May, 1902, the Gustave Zédé in an experimental attack on the battleship Jauréguiberry off Hyères grounded, but was subsequently refloated.

Mr. John P. Holland, in an article which he contributed to the North American Review for December, 1900, wrote as follows:—

“When the first submarine torpedo-boat goes into action she will bring us face to face with the most puzzling problem ever met in warfare. She will present the unique spectacle, when used in attack, of a weapon against which there is no defence. You can pit sword against sword, rifle against rifle, cannon against cannon, ironclad against ironclad; you can send torpedo-boat destroyers against torpedo-boats, and destroyers against destroyers, but you can send nothing against the submarine boat, not even itself. You cannot fight submarines with submarines. The fanciful descriptions of the submarine battle of the future have one fatal defect. You cannot see under water. Hence you cannot fight under water. Hence you cannot defend yourself against an attack under water except by running away. If you cannot run away you are doomed. Wharves, shipping at anchor, the buildings in seaport towns, cannot run away, therefore the sending of a submarine against them means their inevitable destruction. No; as nearly as the human mind can discern now, the submarine is indeed a ‘sea-devil’ against which no means that we 137possess at present can prevail. It is no use for the defence to mine, for the submarine would countermine, and torpedo nets would be of no use, for it would blow a hole through them, and any attempt to discover the position of the boat when below the surface is about as promising a pursuit as dredging with a butterfly-net for a half-dollar that had been thrown into New York Bay.”

In the present state of the science of submarine warfare it is certainly impossible to fight submarines with submarines, and it is recognised that the best chance of destroying an under-water vessel is when it comes to the surface to take a momentary glance at the position of its victim before launching its torpedo.

When a means of distinguishing objects beneath the waves has been evolved then it will be time enough to discuss the possibility of constructing a submarine boat destroyer which shall itself go beneath the surface and seek out the submarine to deal it its deathblow.

Every advance in military and naval science that tends to strengthen the attack has been met by some invention or device calculated to enable the defence to withstand it.

In the early days men went into battle wearing heavy armour, but nowadays, although bullet-proof cuirasses and bullet-proof shields have been suggested, the foot soldier carries no protection on his person, but relies instead upon entrenchments and fortifications.

It may be remembered that when the hostilities 138in South Africa commenced, certain experts declared that the new lyddite shells would annihilate the Boers in a very short space of time. The capabilities of the enemy for defending himself had been underestimated by these gentlemen, and the terrible slaughter which was predicted at Paardeberg did not occur owing to the wonderful entrenchments beneath which the Boers and their families sheltered.

Any system of entrenchment is of course impossible upon the high seas, and therefore men-of-war have to carry armour plate to protect their sides from the effects of shell and shot.

But no sooner had metallic armour been applied to the sides of war vessels than the manufacturers set to work to increase the size and destructive capacity of the shot, and for years past a duel has been in progress between the projectile and the plate; each improvement in the one has led to an improvement in the other, and all the resources of science have been requisitioned to render the projectile more deadly and the plate more impervious to its attack and lighter than before.

The advent of the torpedo as an effective weapon of attack brought about the “torpedo-boat,” which was met first by the “torpedo-catcher,” and then by the “torpedo-boat destroyer;” while as protection against the torpedo itself, nets and crinolines have been devised for the purpose of foiling the objects of the attack. A net-cutter on the bows of the torpedo 139has, however, made its appearance, and it is now considered unlikely that nets will be of much protection to a ship, even when stationary.

“The practice of “Submarine Mining” has led to “Counter-mining,” and the adoption of the searchlight on shipboard has caused the invention of a device whereby the rays of light are reflected away from the attacking vessel, thus enabling it to advance unobserved.”

The destructive effects of explosive shells have been met by the shipbuilders by the subdivision of the air space of a warship into watertight compartments, and the desire of the enemy’s gunners to inflict injury upon the boilers, the engines, or the propellers, has led numerous inventors to devise a type of warlike craft that shall be almost entirely destitute of armour, but constructed on such a principle-both as to hull and machinery—that she can be raked fore and aft and shot through in all directions without becoming either water-logged or deprived of her motive power.^[6]

So far as we are aware the only nation that has seriously taken up the question of an antidote to submarines is Great Britain. At present the submarine boat, owing to its slow speed and narrow radius of action, is more suited for defence than attack, though as it is year by year improving it may soon become a valuable attacking weapon. France has preferred to build torpedo-boats and 140Great Britain destroyers, and on January 15, 1901, France had 235 torpedo-boats and 9 destroyers, and Great Britain had 95 torpedo-boats and 89 destroyers, and in the same way while France is rapidly constructing a flotilla of submarines, Great Britain, although building a few submarines, is also devoting attention to the best method of meeting under-water attack.

The means of attack against submarines at present are:—

1. By quick-firing guns.

2. By firing shells full of high explosive, which bursting in the water near the boat, will beat it in.

3. By firing explosives at the end of a spar.

When running awash, the submarine presents a very small target; the hull is 3 to 5 feet below the surface, which would deflect all projectiles from machine guns, and the armoured conning tower, which is alone visible, would be a difficult object to hit.

After running awash for some distance the submarine will submerge herself, but in spite of periscope and optical tube she will most probably have to come to the surface once or twice to take a short sharp look round before firing her torpedo. This is the moment when the attack must be made upon the diving vessel, and the idea is to destroy her either by firing a shell from a gun, or an outrigger torpedo from a swiftly moving vessel. In so much as it is difficult to make a shell burst with 141certainty at the right instant, the second method is the one that seems most to commend itself to the authorities.

The Lords of the Admiralty in the course of their visit to Portsmouth in June, 1901, witnessed the working of a method of destroying submarines that had been devised by the Vernon’s staff. The trials took place at a considerable distance from shore, and were confidential, and therefore no official account of what took place has appeared. Still from various sources it is possible to piece together a “story,” the moral of which (according to some writers) seems to be that a satisfactory method of destroying the enemy’s submarine boats has been found, and that henceforth the British fleet has nothing to fear from the attacks of these “marine devils.”

In the present state of the science, they say, a submarine attacking a ship is bound to come to the surface to take bearings or else to betray her presence by optic tube or periscope. With the new invention that has been evolved on the Vernon, the sighting of a submarine entails her almost certain destruction. Sighting is said to be now practically certain, though it is not to the public benefit that the means which will be employed should be stated, as the principle has other and varied uses.

The experiments were made with H.M. torpedo-boat destroyer Starfish. On the starboard side certain plates had been strengthened, and above 142there was a crutch upon which worked a spar or outrigger torpedo. A spar-torpedo is really a movable observation mine. In the present instance it consisted of a stout pole some 42 feet in length, at the end of which was an explosive charge of 32 lbs. of wet gun-cotton, explodable by an electric current by the crew in the boat. Normally this boom stows inboard and forward, but on going into action it is slung out well forward and immersed in the water in the proper moment. This immersion carries the boom end downward and aft, and it is exploded directly the submarine is past. The idea is that the speed of the destroyer will carry her past the centre of the explosion before the full effects reach her. Her strengthened plates add to her safety, and it is thought that in any case destroyers are too light and “cork-light” to be seriously affected. As for the submarine below the waves, the men of the Vernon make out a pitiable case for her. She will experience the full force of the terrific concussion. Within from 50 feet to 100 feet or more of the centre of explosion, according to the charge employed, the sides of the submarine should be compressed sufficiently to cause fatal leaks, while even at a greater distance stability should be destroyed.

At the Portsmouth experiment the “dummy” submarine consisted of a barrel sunk some 10 feet below the surface of the water to represent a submerged boat. This was attacked and destroyed by 143the torpedo-boat destroyer Starfish in the following way. When within striking distance of the barrel, the boom was dropped and the gun-cotton exploded by electrical contact. The officers who carried out the experiment are reported to have said that any submarine within an area of 60 feet of the outrigger boom when the explosion occurred must infallibly have been annihilated by the bursting of the charge, and that if a submarine came up to within a 1,000 yards of a boom-fitted destroyer, it would certainly be done for.

EXIT SUBMARINE.

It was stated that the single experiment carried out at Portsmouth was not enough to indicate exactly the best position for the boom, and the first boats to be fitted will probably vary somewhat between having it in the quarter or right aft. The additional weight of the boom is slight; in the case 144of the Starfish, the destroyer experimentally fitted, the weight had been more than compensated for by fitting her with aluminium, instead of the usual torpedo tubes.

To say that if a submarine rises anywhere near a destroyer armed with a spar, her destruction is absolutely certain, is, we think, going too far. To blow up a stationary barrel is not a very difficult task, but it must not be forgotten that if the destroyer sights the submarine, the submarine will also sight the destroyer and will endeavour to launch a torpedo at the destroyer before the latter can explode its weapon. Besides this the submarine having sighted the destroyer can dive and make off in a direction which the latter cannot foretell, and there would seem to be a good chance of her escaping.

Submarines will probably act in conjunction with torpedo-boats and destroyers, and the object of these vessels will be to ward off the attacks of hostile torpedo-boats and destroyers.

It has been said that in action the moral effect of the submarine would probably outweigh its practical effect, and it is now urged that the moral influence of this new antidote to submarines will be very great.

“The risks of ordinary submarine work,” says a writer, are not so great as many people imagine; and they can in a great measure be overcome by practice. But the deadly spar will quite alter this. The men in the submarine cannot acquire 145familiarity with this in peace; not till war will it operate. Then, whenever they are rising, they will know that a destroyer may be within reach, and that, if so, absolute annihilation is certain, and annihilation in a particularly horrible form.

“Excitement may sustain them; they may figure it out that their chances of life and death are on a par with those of the soldier in a frontal attack, but it is at least doubtful. It is difficult to make the analogy; and, moreover, there is the chill of the water to consider. Nerves and courage both suffer from cold, and the interior of a submarine has always the chill of a tomb. Inside it men sit, and may not move without endangering the craft’s stability. It will need a high courage thus to sit absolutely without means of knowing whether a painful annihilation is coming in a few minutes; it will certainly render it difficult to take careful observations—and careful observations are a vital necessity. And the Frenchman, of all races of men, seems least fitted to be calm under such circumstances. It must further be remembered that if a destroyer is within a thousand yards she will be easily able to steam up and destroy the boat, for a thousand yards a minute is now destroyer speed. The boat, on the other hand, cannot, save under favourable circumstances, see a distance of a thousand yards, certainly not in a hasty rise and plunge again. She might just distinguish a big ship, but that is about all. On the verge of a 146frightful death it will take a very cool man even to see that.”^[7]

The French appear to have considered the possibility of some “antidote,” for the submersible Narval has a double hull, and in the space between the two, sea water is allowed to circulate freely. Whether this device will enable the boat to resist the force of an explosion is a question which can only be satisfactorily decided in actual warfare. Meanwhile the bomb-proof hull will certainly receive attention.

So far the periscope and the optical tube have not done away with the necessity for the submarine to come to the surface to correct her course and take her bearings, but there are those who claim that even if the necessity were removed, the whereabouts of the submarine would be revealed by tell-tale foam and bubbles.

Many inventors have lately been devoting their attention to the steering of torpedoes without the need of connecting wires, and some consider that wireless torpedoes would be an efficient antidote to submarine boats. That such weapons can be 147produced there is little doubt, but that they will be sufficient to drive submarines from the seas, appears extremely doubtful—at any rate just at present.

The possibility of a battleship or a cruiser being able to inform herself of the advance of a submarine vessel must be considered. Water is an excellent conductor of sound, and a microphone or some similar apparatus could be arranged to give notice of the approach of an invisible ship, even when it was some way away. The ironclad could then surround herself with her torpedo nets, or steam away leaving the submarine powerless to overtake her.

The French are very naturally watching with intense interest the attitude of the British navy towards submarine boats, and the experiments that have lately been carried out by the officers of H. M. S. Vernon with a view to discovering the most effective method of destroying under-water craft, have been carefully followed by our neighbours over the channel.

According to a recent article in Le Yacht we are endeavouring to get submarines prohibited as unfair weapons, but being doubtful of such a “happy result,” have devised a torpedo that is fired the instant one is sighted. We have also perfected a “Röntgen ray device” whereby the British sailor will be enabled to scan the ocean depths and sight the submarine even if it lurk at a depth of 20 feet below the surface. Le Yacht, however, thinks this 148device would cut both ways, and would enable the submarine to find its prey without coming to the surface at all. No official information regarding the Röntgen ray device has up till now been vouchsafed, and it may after all exist nowhere else than in the heated imagination of French writers who hate perfidious Albion more than ever since she has considered the question of accomplishing the destruction of France’s submarine flotilla.

M. Lockroy, in a recent article in the Matin, suggested that it would only be possible to fight against submarines when the steering of balloons had been discovered, the black form of the vessel being very easily distinguished in the water from a certain height.

PART II — CHAPTER IX THE EARLY HISTORY OF SUBMARINE WARFARE — CHAPTER X EARLY EFFORTS IN SUBMARINE NAVIGATION — CHAPTER XI DAVID BUSHNELL — Description of a Magazine and its Appendages designed to be conveyed by the Submarine Vessel to the bottom of a Ship. — Experiments made to prove the nature and use of a Submarine Vessel. — CHAPTER XII FULTON’S SUBMARINE BOATS — CHAPTER XIII SUBMARINES DURING THE AMERICAN CIVIL WAR — CHAPTER XIV THE WHITEHEAD TORPEDO—“THE MOST WONDERFUL MACHINE IN THE WORLD” — 1 and 2. The Firing Arrangement and Explosive Chamber. — 3. The Air Chamber. — 4. The Balance Chamber. — 5. The Engine Room. — The Servo-Motor. — 6. The Buoyancy Chamber. — The Gyroscope. — CHAPTER XV THE NORDENFELT SUBMARINES

Although no mention of a submarine vessel having been actually constructed can be found earlier than the seventeenth century, and although the torpedo and the mine were not invented till still later, the art of submarine warfare and subaqueous exploration dates back to a very much earlier period.

The earliest form of under-water attack was carried out by divers long before explosive compounds were invented, and the old writers have strange stories to tell of fierce fights beneath the waves.

“The first divers learned their art,” says John Beckmann, in his “History of Inventions and Discoveries,” “by early and adventurous experience, in trying to continue under water as long as possible without breathing, and indeed it must be allowed that some of them carried it to very great perfection. This art, however, excites little surprise, for, 150like running, throwing, and other bodily dexterities, it requires only practice; but it is certain that those nations called by us uncultivated and savage excel in it the Europeans who through refinement and luxury have become more delicate and less fit for such laborious exercises.”

In early times divers were employed for peaceful as well as for hostile purposes. They were kept in ships to assist in raising anchors and to recover goods thrown overboard in times of danger, and by the laws of the Rhodians they were allowed a share of the wreck, proportional to the depth at which they had gone in search of it. “The pearls of the Greek and Roman ladies,” writes Beckmann, “were fished up by divers at the great hazard of their lives, and by the like means are procured at present those which are purchased as ornaments by our fair.”

In the operations of war divers were used for many purposes. Beckmann tells us that when Alexander was besieging Tyre, divers swam off from the city under water to a great distance and with long hooks tore to pieces the mole with which the besiegers were endeavouring to block up the harbour.

We learn from Herodotus (viii. 8) that when the fleet of Xerxes was advancing to the invasion of Greece, “there was in the force one Skyllias, a Skionaian, the best diver of his time, who in the shipwreck off Pilîon had saved many things for the Persians and had also obtained many things 151himself.” This diver deserted to the Greeks and gave them the benefit of his skill as well as of recent intelligence concerning their enemy. He was the means of destroying a number of the Persian ships by a curious kind of submarine attack. Accompanied by his daughter Kyane, whom he had instructed in his art, he dived during a storm and “cast off” the cables from the anchors which held the vessels, the result being that they were driven on shore and wrecked.

Thucydides (iv. 26) gives an instance of a case of divers being employed as subaqueous auxiliaries during the siege of Syracuse.

“The besieged had driven piles into the water before their old docks, that their vessels might be in safety behind them and the Athenians be unable to stand in amongst them and do any damage to the shipping.” The latter endeavoured to remove this species of nautical entrenchment, and for this purpose they constructed a raft on which were turrets and parapets to cover the men who embarked on it. It was towed up to a line of piles and used as a kind of covering battery for the crews of boats who removed the piles which had been “sawed off close to the bottom by divers.” A serious obstruction was offered by some piles driven in till their heads were below the surface of the water in the hope that the besieging ships might run upon it. But the divers, by persevering efforts, succeeded in sawing them through, thus enabling the besiegers to remove them.

152The Chronicles of the early Middle Ages supply instances of the employment of divers in naval warfare. The Baltic, we read, was so infested with pirates that a Swedish force was sent against them. The Swedish admiral, observing that the pirate vessels lay at anchor in a certain bay, sent in at night men from his own fleet to dive beneath them and make holes in their bottoms. The following day he engaged them. In the action the leaks made by the subaqueous assailants during the night proved so serious that the piratical crews had to turn their attention chiefly to stopping them and to baling out their vessels. The number available to fight their enemy was in consequence so reduced that the Swedes gained a complete victory and the power of the pirates was annihilated.

Again at the siege of Malta by the Turks in the sixteenth century some furious under-water fighting occurred. The Maltese were excellent divers and the Knights took advantage of their skill to assist in the erection of a barricade across the mouth of one of the creeks which indent the shores of the Grand Harbour. This obstruction the Turkish besiegers endeavoured to remove, and accordingly they made upon it a series of determined attacks. The divers left their work to drive them off and a terrible and weird struggle ensued, frequently below the surface of the water, which finally ended in the repulse of the infidel assailants.

One must accept cum grano salis the stories told by writers regarding the time that divers were 153able to continue under water. Beckmann said that the divers of Astrakhan employed in the fishery there could remain for seven minutes under water. The divers in Holland seem to have been very expert, for an observer, during the time they were under water, was obliged to breathe at least ten times. “Those who collect pearl-shells in the East Indies can remain under water a quarter of an hour, though some are of opinion that it is possible to continue longer; and Mersenne mentions a diver, named John Barrinus, who could dive under water for six hours.” Beckmann evidently found it a little difficult to swallow this, so he adds, “How far this may be true I shall leave others to judge.”

An account of a Sicilian diver, Nicolo Pesce, given by Kircher, is yet more marvellous than any of those just cited. So great was his skill that he carried letters for the king from Sicily to Calabria. The story goes that the king offered him a gold cup if he would explore the terrible Gulf of Charybdis. He remained for three-quarters of an hour amidst the foaming abyss and on his return described all the horrors of the place to the astonished monarch, who requested him to dive once more to further examine the gulf. For some time he hesitated, but upon the promise of a still larger cup and a purse of gold he was tempted to plunge again, with the melancholy result that he never came to the surface again.

A history of the art and practice of diving, 154although it would present many points of interest, is foreign to our subject, and attention must be confined to the question of submarine warfare.

Some writers on this subject, whilst making such statements as “The confinement of gunpowder in watertight cases and its submarine explosion for the destruction of floating and other bodies is almost as old as villainous saltpetre itself,” or “The ancients understood the manufacture of subaqueous explosives or at least combustibles,” do not trouble to give any particular instances. A French writer is reported to have collected accounts of the use of such devices against ships below the water-line, but a diligent search has failed to reveal the name of the author.

“The fact that some under-water explosive compound,” said Admiral Cyprian Bridge, in an article he contributed to Fraser’s Magazine many years ago, “had been known in ancient times was not lost sight of in the stirring intellectual revolution of the Renaissance, which, amongst other legacies, bequeathed to mankind the outlines of the modern art of war. It is not surprising, therefore, that we should meet with the use of such an agent in the wars of the sixteenth century. The most celebrated instance of its employment was by the Italian Giannibelli (sic) at Antioch during the siege of the city by the Prince of Parma.”

Perhaps the Admiral is referring to what Lieutenant Sleeman says is the earliest record of the employment of a torpedo (i.e., a case of explosion 155possessing the power of aggression). In 1585 an Italian engineer named Zambelli invented a floating mine and succeeded in destroying a bridge built over the Scheldt by the Prince of Parma. Zambelli’s mine consisted of a flat boat filled with gunpowder arranged in it so as to secure the maximum effectiveness, and provided with a long sulphur metal rope and clockwork for its ignition.

A few years before this feat (in 1578) an Englishman, by name William Bourne, published a book entitled, “Inventions or Devices.” He suggested in his seventeenth article, “How for to sink a ship that hath laid you aboard without shooting of ordnance.” William Bourne is in some books said to have actually invented a plunging apparatus for use in warfare, but no circumstantial account of such a vessel is extant.

The Marquis of Worcester, in his “Century of Inventions” (1663), describes in section 9 “An engine, portable in one’s pocket, which may be carried and fastened on the inside of the greatest ship, Tanquam aliud agens, and at any appointed minute, though a week after, either by day or night it shall irrecoverably sink that ship.” The smallness of the engine suggests some explosive missile connected with clockwork as the only means to insure its being compact and operating on a precise day at a stated point of time. Section 10 is as follows: “A way from a mile off to dive and fasten a like engine to any ship so as it may punctually work the same effect either for time or execution.”

156In 1596 John Napier of Merchiston wrote a statement of four “Secret Inventions,” concluding with the remark—“These inventions, besides devices of sailing under the water with divers other devices and stratagems for burning of the enemies, by the grace of God, and work of expert craftsmen, I hope to perform.”

Pepys in his “Diary,” under date March 14, 1662, says: “This afternoon came the German Doctor Knuffler to discourse with us about his engine to blow up ships. We doubted not the matter of fact it being tried in Cromwell’s time, but the safety of carrying them in ships, but he do tell us that when he comes to tell the King his secret, for none but the Kings successively and their heirs must know it, it will appear to be of no danger at all.”

The foregoing extracts show that the possibility of a practical method of submarine attack was beginning to take shape in the minds of philosophers and inventive geniuses. “Fire and Powder Ships,” “Machines,” “Internals,” “Catamarans,” and similar devices for accomplishing the destruction of an enemy were known at this time, and it is not strange that the idea of making the explosion take place beneath the water should have suggested itself.

Who invented the first boat which was capable of being propelled beneath the water? Opinions differ as to the correct answer to this question. David Bushnell’s boat (circa 1773) is the first of which we have any definite record, but William Bourne (1580), Magnus Pegelius (1605), and Cornelius Van Drebbel (1620) have all been credited with having constructed under-water vessels. In the previous chapter it has been shown that the earliest form of submarine attack was carried out by divers. The prototype of the submarine boat was undoubtedly the diving bell, the history of which contrivance, although presenting many points of interest, it will be impossible to relate here.

According to some writers to William Bourne, the English mathematician, belongs the credit (in 1580), of operating the first submarine boat as such, in contradistinction to a diving-bell, but there is nothing to show that Bourne did more than discuss the question, as did also Magnus Pegelius, although the 158latter is reported to have built a small submarine vessel in the year 1605.

The Dictionary of National Biography credits Cornelius Drebbel, who was born in 1572, in the town of Alkmaar, in Holland, and who died in London in 1634, with the invention of a submarine boat “which was navigable without the use of artificial light, from Westminster to Greenwich.” We have spent some time in endeavouring to verify this assertion, but the references to the boat are vague and unsatisfactory. However, as Drebbel is by some accounted the “Father of Submarine Navigation,” it seems scarcely fitting to dismiss him without further thought.

In that curious old volume entitled “New Experiments Physico-mechanical touching the Spring of the Air and its Effects,” by the “Honourable Robert Boyle, Esq.,” mention is made of Drebbel’s boat, and it may be interesting to transcribe the passage. It occurs, on p. 188 of the second edition, published at Oxford in 1662.

159

THE EARLIEST KNOWN PICTURE OF AN UNDER-WATER VESSEL.

“But yet on occasion of this opinion of Paracelsus, perhaps it will not be impertinent if before I proceed, I acquaint your lordship with a Conceit of that deservedly Famous Mechanician and Chymist, Cornelius Drebell, who among other strange things that he performed, is affirmed (by more than a few credible Persons) to have contrived for the late learned King James, a vessel to go under Water; of which tryal was made in the Thames with admirable success, the vessel carrying twelve Rowers besides Passengers; one of which is yet alive, and related to an excellent Mathematician that informed me of it. Now that for which I mention this story is, That having had the curiosity and opportunity to make particular Enquiries among the Relations of Drebell, and especially of an ingenious Physitian that marryed his daughter, concerning the grounds upon which he conceived it feasible to make men unaccustomed to continue so long under Water without suffocation, or (as the lately mention’d Person that went in the Vessel affirms) without inconvenience, I was answered that Drebell conceived, that ’tis not the whole body of the air but a certain Quintessence (as Chymists speake) or spirituous part of it that makes it fit for respiration, which being spent the remaining grosser body, or carcase (if I may so call it) of the Air, is unable to cherish the vital flame residing in the heart: so that (for ought I could gather) besides the Mechanicall contrivance of his vessel he had a Chymicall liquor, which he accounted the chief secret of his Submarine Navigation. For when from time to time he perceived that the finer and purer part of the Air was consumed or over-clogged by the respiration, and steams of those that 160went in his ship, he would, by unstopping a vessel full of the liquor speedily restore to the troubled air such a proportion of vital parts as would make it again for a good while fit for Respiration. Whether by dissipating or precipitating the grosser exhalations, or by some other intelligible way, I must not now stay to examine, contenting myself to add, that having had the opportunity to do some service to those of his Relations, that were most intimate with him, and having made it my business to learn what the strange liquor might be, they constantly affirmed that Drebell would never disclose the Liquor unto any, nor so much as tell the matter whereof he made it, to above one Person, who himself assured me what it was.”

It is much to be wished that fuller accounts were extant respecting Drebbel’s boat, and the methods he employed to enable his passengers to breathe under water. W. B. Rye in one of the notes to his work “England as seen by Foreigners” (1865, p. 232), gives a carefully compiled account of Drebbel’s inventions and quotes from a Dutch Chronicle of Alkmaar, by C. van der Wonde (1645), a passage relating to his submarine boat.

“He built a ship in which one could row and navigate under water from Westminster to Greenwich, the distance of two Dutch miles; even five or six miles, or as far as one pleased. In this boat a person could see under the surface of the water and without candle-light, as much as he needed to read in the Bible or any other book. Not long ago this remarkable ship was yet to be seen lying in the Thames or London river.”

As to what Drebbel’s “Chymicall Liquor” really was there is no chance of discovering. Professor 161W. P. Bradley has pointed out that the name “Quintessence of Air” is very suggestive of oxygen. The life-giving component of air (not discovered until a century and a half after Drebbel’s time) is volumetrically the “quintessence,” the fifth part of air. “Is it possible,” he asks, “that Drebbel had discovered some liquid which easily disengaged the then unknown oxygen gas and thus was able to restore to vitiated air that principle of which respiration deprives it? Undoubtedly not. It is much more likely that he possessed a solution capable of absorbing the carbonic acid gas which is produced by respiration, and that the name given it was entirely fanciful and without special significance. But even if Drebbel’s claim was a piece of pure quackery with no substantial basis at all, it is nevertheless not without interest, for it shows, as we might have anticipated, that the problem of ventilation, one of the most important with which the inventors of submarines have to deal, was at least appreciated by Drebbel the pioneer.”

A writer of the period, one Harsdoffer, tells how Drebbel was led to the construction of his boat:—

“One day when walking along the banks of the Thames Drebbel noticed some sailors dragging behind their barques baskets full of fish; he saw that the barques were weighed down in the water, but that they rose a little when the baskets allowed the ropes which held them to slacken a little. The idea occurred to him that a ship could be held under the water by a somewhat similar method and could be propelled by oars and poles. Some time afterwards he constructed two little 162boats of this nature, but of different sizes, which were tightly closed with thick skin, and King James himself journeyed in one of them on the Thames. There were on this occasion twelve rowers besides the passengers, and the vessel during several hours was kept at a depth of twelve to fifteen feet below the surface.” This royal excursion under water terminated, we read, “fort hereusement.”

The Abbé de Hautefeuille, in a brochure which appeared in 1680 entitled “Manière de respirer sous l’Eau,” writes thus:—

“Drebbel’s secret was probably the machine which I had imagined consisting of a bellows with two valves and two tubes resting on the surface of the water, the one bringing down air and the other sending it back. By speaking of a volatile essence which restored the nitrous parts consumed by respiration Drebbel evidently wished to disguise his invention and prevent others from finding out its real nature.”

Ben Jonson, in his comedy, “The Staple of News,” first acted by His Majesty’s servants in 1625, has a hit at certain inventions of the time, and amongst these is the boat of Master Drebbel. Thomas, Act III., Scene I., says:—

That Ben Jonson should class the submarine boat of Drebbel with such a proposal as that of bringing an army over seas in corkshoes—

and with the discovery of perpetual motion—

gives one an idea of how the world in general viewed Drebbel’s invention, and yet the inventor found favour in the eyes of James I., who bestowed money upon him, gave him a lodging in Eltham Palace, took a great interest in his experiments, and when his life was in danger at Prague, owing to a revolution, succeeded in obtaining his release by personal intercession.

In return for his Majesty’s favour Cornelius invented an “ingenious machine” for producing perpetual motion, which became one of the wonderful sights of the day. According to a description in 164the Biographie Universelle it consisted of a globe of glass in which by means of the four elements Drebbel imitated perpetual motion. In the space of twenty-four hours one could behold the course of the sun, the planets, and the stars. By means of this marvellous globe he showed “the cause of cold, of the ebb and flow of the sea, of storms, of thunder, of rain, of the wind, enfin tout le mecanisme de la nature.”

In the diary of Lewis Frederick, Prince of Wurtemberg, under date Tuesday, May 1, 1610, occurs the passage, “His Excellency went to Elham Park to see the perpetual motion; the inventor’s name was Cornelius Trebel, a native of Alkmaar, a very fair and handsome man, and of very gentle manners, altogether different from such-like characters; we also saw there Virginals, which played of themselves.”

Undoubtedly Drebbel was ahead of his time, but one cannot credit him with all the wonders he is reported to have achieved. Some of his biographers state that he invented a telescope, a microscope, and a thermometer; an incubator for hatching fowls; an instrument for showing pictures of portraits of people not present at the time, and a method of producing at will the most extreme cold. Drebbel was evidently highly thought of at the Courts of James I., Rudolph II., and Ferdinand II., but this was perhaps due more to his being “a very fair and handsome man of very gentle manners,” than to his scientific attainments.

165One of his biographers refers to him thus: “Cornelius van Drebbel, ein Charlatan,” and others have dubbed him alchemist, empiric, magician, and professor of the Black Art.

Mr. Rye’s estimate is perhaps the truer:—

“But however extravagant and improbable some of the following descriptions may appear, yet, allowing as we ought to do for the crude state of physical science and the credulity of the times in which he lived, as well as the then prevailing tendency to clothe scientific investigation and experiment with an air of mystery, Cornelius Drebbel is entitled, we think, to hold a respectable position among the ingenious inventors and mechanicians of the early part of the seventeenth century.”

Drebbel’s boat attracted the attention of the Right Reverend John Wilkins, whose mathematical and philosophical works were published in London in the year 1708.

John Wilkins was a remarkable man, considerably in advance of his day in scientific speculation. As few people nowadays read his books a brief extract from his “Mathematical Magick: or the Wonders that may be perform’d by Mechanical Geometry” may be read with interest and amusement.

The book is divided into two parts, the first entitled “Archimedes, or Mechanical Powers,” the second, “Doedalus, or Mechanical Motions.”

Chapter V. of Part 2 deals with “the possibility 166of framing an Ark for Submarine Navigation: the Difficulties and Consequences of such a Contrivance.”

“It will not be altogether impertinent,” says the author, “with the Discourse of these gradient Automata to mention what Mersennus doth so pleasantly and largely descant upon concerning the making of a ship wherein men may safely swim under the water. That such a Contrivance is feasible, and may be effected, is beyond all question, because it hath been already experimented here in England by Cornelius Dreble; but how to improve it unto Publick Use and Advantage, so as to be serviceable for remote Voyages, the carrying of any considerable Number of Men, with Provisions and Commodities, would be of such excellent Use, as may deserve some further enquiry.”

The difficulties are divided into three heads:—

1. “The letting-out or receiving in anything as there shall be occasion without the admission of Water. If it hath not such a convenience these kind of Voyages must needs be very dangerous and uncomfortable both by Reason of many noisome and offensive Things which should be thrust out, and many other needful Things which should be received in. Now herein will consist the Difficulty, for to contrive the opening of the Vessel so that anything may be put in or out, and yet the Water not rush into it with much Violence as it doth usually in the leak of a Ship.”

The learned Doctor’s remedy is as follows: “Let there,” he says, “be certain leather bags made of several bignesses, long and open at both ends, and answerable to these let there be divers windows made in open places in the frame of the ship round the sides, to which one end of these bags might be fixed, the other end coming within the ship. The bag being thus fastened and tied close about towards the window, then any thing that is to be sent 167out might be safely put into that end within the ship: this being again close shut, and the other end loosened, the thing may be safely sent out without the admission of any water.”

In taking anything in, it was to be first received into that part of the bag towards the window, which being close tied down at the other end may then be safely opened.

A CONCERT IN A SUBMARINE.

The Diable Marin of W. Bauer.

(1855.)

“It is easy to conceive, how by such means as these a Person may be sent out or received in, as there shall be occasion; how the water which will perhaps by Degrees leak into several parts may be emptied out again, with divers other like advantages. Tho’ if there should be a leak at the bottom of the vessel, yet very little Water would get in, because the Air would get out.”

The fate of the unhappy Person thrust out of the Vessel by means of the leather bags is too dreadful to contemplate, and the sailors called upon to man a modern war submarine may congratulate themselves that this convenient contrivance imagined by the ingenious prelate has not come 168into use. As to the taking in of things into the boat one does not quite gather how they would get into the bag, or how the bag would be first untied and then tied again by those inside the vessel.

The second difficulty in such an Ark is “the Motion or fixing of it according to occasion: the directing of it to several places as the Voyage shall be designed, without which it would be very useless, if it were to remain only in one Place, and were to remove only blindfold, without any certain Direction: And the Contrivance of this may seem very difficult because these submarine Navigators will want the usual advantages of Wind and Tide for Motion, and the sight of the Heavens for direction.”

The progressive motion of the boat would be effected by the help of several oars made to contract and dilate like the fins of a fish, the holes through which they pass into the ship being tied about with the afore-mentioned Leather Bags.

“It will not be convenient, perhaps, that the motion in these Voyages should be very swift because of those Observations and Discoveries to be made at the Bottom of the Sea, which in a little space may abundantly recompense the slowness of the Progress.”

Dr. Wilkins had grasped the fact that if the Ark were so ballasted as to be equal weight with the like magnitude of Water, it would then be easily movable in any Part of it.

As for the ascent and descent of the craft this was to be accomplished by “some great Weight at the Bottom of the Ship (being Part of its Ballast), which by some Cord within may be loosened from it. If this Weight is let loose so will the Ship ascend from it (if need be) to the very Surface of the Water; and again as it is pulled close to the Ship, so will it descend.”

The idea of taking in Water-ballast for sinking the Ark does not seem to have occurred to the Author.

For directing the course of the Vessel the Mariner’s Needle would be employed, but the patent difficulty of all is this, 169“How the Air may be supplied for Respiration, How constant Fires may be kept in for light and the Dressing of Food, how those Vicissitudes of Rarefaction and Condensation may be maintained.”

While our author will not go so far as to say that a man may by custom, “which in other things doth produce such strange incredible effects,” be enabled to live in the open Water as do the fishes, yet he thinks that long use and custom may strengthen men against many such inconveniences of this kind which to inexperienced persons may prove very hazardous: thus it will not perhaps be so necessary to have the air for breathing so “pure and desecated” as is required for others.

The difficulty of respiration under water may be met in several ways. “The submarine ark should be of such a large capacity that as the air is corrupted in one part so it may be purified and renewed in the other: if the mere refrigeration of the air would fit it for breathing, this might be somewhat helped with bellows, which would cool it by motion: it is not altogether improbable,” says the doctor, “that the lamps and fires in the middle of it like the reflected beams in the first region rarefy the air and the circumambient coldness towards the sides of the vessel like the second region, cooling and condensing of it would work such a Vicissitude and change of air as might fit it for all its proper uses.”

Finally, if none of these conjectures will help, the author mentions that there is in France one Barrières, a diver, who hath found out the art whereby a man might easily continue under water for six hours together, “whereas Ten Cubical Feet of Air will not serve another Diver to breathe in for Half an Hour, he by the help of a Cavity not above one or two Foot at most will have Breath enough for six hours and a Lanthorne scarce above the usual size to keep a candle burning as long as a Man please. Which (if it be true and were commonly known) might be sufficient help against the greatest difficulty.”

Dr. Wilkins makes no mention of the “Chymicall Liquor” which Drebbel is reported to have discovered for the purifying 170of the air inside the boat when under water, and it is probable that he attached little value to the accounts of this remarkable substance.

Having so far dealt with the difficulties of submarine navigation and their remedies, the author proceeds to discuss the many advantages and conveniences of such a contrivance.

First of all, says he—“’Tis private; a Man may thus go to any Coast of the World invisibly without being discovered or prevented in his journey.”

Certainly this would be a convenience to the criminal fleeing from justice, to a deposed ruler wishing to escape from his conquerors, and to others desirous of effacing themselves for a time.

Secondly—“’Tis safe from the Uncertainty of Tides and the Violence of Tempests, which do never move the Sea above Five or Six paces deep, from Pirates and Robbers which do so infest other Voyages. From Ice and great Frosts, which do so much endanger the Passages towards the Poles.” Could Bishop Wilkins but have perused Mr. John Holland’s article in the North American Review for December, 1900, in which proposals for a submarine passenger service across the Channel are put forward, he would have been gratified to find the inventor of a practical under-water vessel of the same opinion as himself regarding the “advantages and conveniences” of travelling beneath rather than on the waves.

M. Goubet also has imagined a submarine cross-Channel service.

Thirdly—“It may be of very great advantage against a Navy of Enemies, who by this means may be undermined in the Water and blown up.”

Sixty-seven years after these words were written David Bushnell launched his submarine boat, which carried a torpedo charged with 130 lbs. of gunpowder to be affixed to the side of the vessel to be blown up. In 1864 the David, owned by the Confederates, blew up the Housatonic, and though this is the only occasion on which a submarine has done any damage to 171the foe in an actual real encounter, it is more than likely that in the next great naval war under-water vessels may “be of very great advantage against a Navy of Enemies.”

Fourthly—“It may be of special use for the Relief of any Place that is besieged by Water to convey unto them Invisible Supplies; and so likewise for the Surprizal of any Place that is accessible by Water.”

Fifthly—“It may be of unspeakable Benefit for Submarine Experiments and Discoveries, as—The several Proportions of Swiftness betwixt the ascent of a Bladder, Cork, or any other light Substance, in comparison to the descent of Stones or Lead. The deep Caverns and Subterranean Passages where the Sea Water in the course of its circulation, doth vest itself into other Places and the like. The Nature and Kinds of Fishes, the several Arts of Catching them, by alluring them with Lights, by placing divers nets about the sides of this Vessel, shooting the greater sort of them with Guns, which might be put out of the ship by the help of such Bags as were mentioned before, with divers the like Artifices and Treacheries, which may be more successfully practised by such who live so familiarly together. These fish may serve not only for food but for Fewel likewise, in respect of that oil which may be extracted from them; the Way of Dressing Meat by Lamps being in many Respects the most convenient for such a Voyage. The many fresh springs that may probably be met with at the Bottom of the Sea, will serve for the Supply of Drink and other Occasions.”

Dr. Wilkins is, however, convinced that, above all, his Ark will be most valuable in the discovery of submarine treasures, “not only in regard of what hath been drowned by Wrecks, but the several precious Things that grow there; as Pearl, Coral Mines; with innumerable other Things of great Value which may be much more easily found out and fetch’d up by the help of this than by any of the usual ways of the Urinators.” For the better fulfilment of this purpose, the author suggests that there should be some lesser cabins tied about the Great 172Ark at various distances, where several persons as Scouts might be lodged for the taking of observations according as the Admiral should direct them. Dr. Wilkins’ prediction has been realised, and in Mr. Simon Lake’s Argonaut there exists a machine which is bound to play an important part in “the discovery of Submarine Treasure.”

In the penultimate paragraph of the chapter on the Submarine Ark Dr. Wilkins waxes enthusiastic over the immense possibilities latent in such a contrivance. “All kinds of Arts and Manufactures may be exercised in this Vessel. The Observations made by it might be written and (if need be) Printed here likewise. Several Colonies may there inhabit, having their Children born, and bred up, without the knowledge of land, who could not chuse but be amazed with Strange Conceits upon the Discovery of this Upper World.”

In conclusion the author writes:—

“I am not able to judge what other Advantages there may be suggested, or whether Experiment would fully answer these Notional Conjectures. But, however, because the Invention did unto me seem ingenious and new, being not impertinent to the present Enquiry therefore I thought it might be worth the mentioning.”

“Mersennus,” to whom the learned Bishop refers, was a monk of the order of the “Minims,” who lived from 1588–1648, and was the chief friend and literary agent of Des Cartes. He gave in his writings some attention to submarine navigation. He proposed that the shell of a boat which he projected, but never built, should be of copper or some other metal, and that in shape it should resemble a fish, and in order to avoid its turning round both ends should be pointed.

173In time of war the boat would destroy the keels of the enemy’s ships. At the port-holes were placed big cannon. An arrangement of packing with a plug valve prevented the introduction of water. At the moment of firing the guns were brought close to the openings and the plug-valve was raised; after the shot had been discharged the plug fell automatically back to its place. In order to replenish the air pneumatic machines and ventilators would be used; for steering, the compass would act as well beneath the waves as on the surface; for lighting, phosphorescent bodies would be used. The boat was to have wheels and was to be moved by means of oars. Mersenne was the first to affirm that even the most violent tempests could not be a source of danger to the submarine vessel as the disturbance was felt but a little distance below the surface.

RACING THE “CAMPANIA.”

Apostoloff’s Proposed Submarine.

174Another monk of the same order, Father Fournier, about the year 1640 gave to the world his ideas on the problem of navigating beneath the water.

In the year 1653 a Frenchman, whose name we have been unable to discover, is said to have built and operated a submarine boat at Rotterdam. It was 72 feet long, 12 feet high, and 8 feet broad. It was traversed down its entire length by a system of very solid girders whose extremities projecting beneath the bottom were covered with iron. Ordinarily the boat was not meant to be submerged lower than the “awash” condition, but the part above the water was made to slope with the idea of turning aside the projectiles aimed at it. In the centre of the boat was a kind of paddle wheel, but the inventor was careful to keep many details secret regarding its propulsion and its method of attack. For some little time he showed his invention for a small pecuniary remuneration, but it failed to attract the notice of those in authority.

In the Annual Register of the year, 1774, at page 245, there appears an authentic account of a late unfortunate transaction with respect to a diving machine at Plymouth. This relates to the death of a Mr. Day who lost his life in a boat of his own construction in Plymouth Sound.

It appears that Mr. Day, “the sole projector of the scheme, and as matters have turned out, the unhappy sacrifice to his own ingenuity,” planned a method of sinking a vessel under water with a man in it, who should 175live there for a certain time, and then by his own means only bring himself up to the surface. He tried his project in the Broads near Yarmouth, fitting a Norfolk market-boat for his purpose, and succeeded in sinking himself thirty feet under water, where he continued during the space of twenty-four hours. Elated with this success, he then wanted to avail himself of his invention. He conversed with his friends, perfectly convinced that he had brought his undertaking to a certainty; but how to reap the advantage of it was the difficulty that remained.

THE “INTELLIGENT WHALE” OF HALSTEAD.

(1892.)

That this vessel might serve some useful purpose, whether peaceful or warlike, does not seem to have occurred to Mr. Day, who was content seemingly to construct a diving boat capable of sinking and rising again to the surface, without furnishing it with any method of propulsion. A friend of the inventor suggested that if he acquainted the sporting gentlemen with the discovery and the certainty of the performance considerable “betts” would take place as soon as the project should be mentioned in Company. Struck by this happy idea, Mr. Day looked into the “Sporting Kalendar” and finding therein the name of Blake decided 176that it was to this gentleman that he ought to address himself. Accordingly, in November, 1773, Mr. Blake received the following letter:—

“Sir,—I have found out an affair by which many thousands may be won. It is of a paradoxical nature, but can be performed with ease; therefore, sir, if you chuse to be informed of it, and give me £100 for every £1,000 you shall win by it, I will very readily wait upon you, and inform you of it. I am, myself, but a poor mechanic and not able to make anything of it without your assistance.

Mr. Blake naturally had no conception of Mr. Day’s design, nor was he sure that the letter was serious. He wrote, however, to the inventor, and appointed an interview, when the latter announced his project. He declared “that he could sink a ship one hundred yards deep in the sea with himself in it, and remain therein for the space of twenty-four hours, without communication with anything above; and at the expiration of the time rise up again in the vessel.”

Mr. Blake was not a little staggered at this dare-devil proposal, but agreed to advance money for the construction of a model. This having proved satisfactory Mr. Blake advanced a further sum for the building of a practicable vessel. This, it would appear, had a false bottom, “standing on feet like a butcher’s block, which contained the ballast; and by the person in the vessel unscrewing some pins, he was to rise to the surface leaving the false bottom behind.”

The boat was at length built and in the presence of Mr. Blake a trial descent was made. The day fixed for the test which was to decide the bet arrived, but Mr. Blake reduced the depth of water from one hundred yards to one hundred feet, and the time from twenty-four to twelve hours.

“The vessel was towed to the place agreed upon; Mr. 177Day provided himself with whatever he thought necessary, went into the vessel, let the water into her, and with great composure retired to the room constructed for him and shut up the valve. The ship went gradually down to twenty-two fathom water at 2 o’clock on Tuesday, June 28 (1774), in the afternoon, being to return at 2 o’clock the next morning. He had three buoys as messengers which he could send to the surface at option to announce his situation below; but none appearing Mr. Blake, who was near at hand in a barge, began to entertain some suspicions. He kept a strict look-out, and at the time appointed, neither the buoys nor the vessel coming up, he applied to the Orpheus frigate, which lay just off the barge, for assistance. The captain with the most ready benevolence supplied them with everything in his power to seek for the ship. Mr. Blake in this alarming situation was not content with the help of the Orpheus only; he made immediate application to Lord Sandwich (who happened to be at Plymouth) for further relief. His Lordship with great humanity ordered a number of hands from the dock-yard, who went with the utmost alacrity and tried every effort to regain the ship, but unhappily without effect.”

According to Admiral Hichborn (U.S.N.) J. Day has the unique distinction of being the only known victim of the dangers of submarine navigation. This distinction, says the Admiral, depends upon the supposition that reports of submarine accidents were much more reliable two hundred and forty years ago than they have been for the last forty years, during which period there have been authentic newspaper reports of the loss of eighty-two lives in attempting submarine navigation in the United States. “Fifty of these lives were not lost at all, and the other thirty-two, though lost in a boat designed to operate as a submarine, were all lost when, and apparently because, she was not so operating.” This refers to the David, which in the American Civil War destroyed four crews of eight men each.

178Mr. Charles Babbage in his article on the Diving Bell in the “Encyclopædia Metropolitana,” describes Day’s under-water boat. He writes:—

“Having purchased a sloop of 50 tons it was prepared by building an air-tight chamber in the middle 12 feet long, 9 feet broad, and 8 feet deep, and capable of containing 75 hogsheads of air. Considerable pains were taken to make this as strong and as secure as possible. In the middle of the top of this chamber was a square hole, a scuttle just sufficiently large to admit a man; it was bevelled outwards, in order that the valve which was to close the chamber might be driven in more tightly. Screws were applied to this valve, in order to screw it home, and it, as well as the scuttle, was lined with flannel. On the decks of the vessel three buoys of different colours, white, red and black, were fixed by plugs in such a manner that they were to be disengaged by driving another plug from the inside of the chamber. These were designed as signals to indicate the state of health of the adventurer during his stay under water. The white was to denote his being very well, the red indifferent, and the black his being very ill. The ballast of 20 tons, by which the vessel was to be sunk and by disengaging of which it was to be raised again, was fixed to four iron rods passing through tubes into the chamber. The vessel was ballasted internally with 10 tons, which with the twenty suspended from her would, it was imagined, cause her to sink when full of water. Thus perished a man whose intrepidity resulted from his ignorance of the dangers he encountered, and who fell a victim to his obstinate confidence in the success of a plan concerning which his knowledge was totally insufficient to enable him to judge. The depth of water in which the vessel sank was 22 fathoms; the pressure of more than four atmospheres thus produced, in all probability crushed in the sides of the chamber soon after it reached the bottom.”

179

ALVARY TEMPLO “AQUAPEDE.” (1826.)

The originator of the modern method of submarine warfare was David Bushnell, a native of Saybrook (now Westbrook) in the State of Maine, U.S.A., who in the latter part of the eighteenth century conceived the idea of destroying the British ships of war which were employed upon the coasts of North America by exploding gunpowder, contained in a magazine, beneath their bottoms. In order the better to fix the charge to the ships, Bushnell built in 1775 the first practical submarine boat, and the first of which any detailed account is extant.

In a letter written in October, 1789, to Thomas Jefferson, the Minister Plenipotentiary of the United States at Paris, David Bushnell gives a very interesting description of his vessel and its achievements. This deserves to be printed here in full in view of the many quite remarkable devices (considering the period) which the inventor originated.

180The external shape of the submarine vessel bore some resemblance to two upper tortoise shells of equal size, joined together, the place of entrance into the vessel being represented by the opening made by the swell of the shells at the head of the animal. The inside was capable of containing the operator and air sufficient to support him thirty minutes without receiving fresh air. At the bottom, opposite to the entrance, was fixed a quantity of lead for ballast. At one edge, which was directly before the operator, who sat upright, was an oar for rowing forward or backward. At the other edge was a rudder for steering. An aperture at the bottom, with its valve, was designed to admit water for the purpose of defending, and two brass forcing pumps served to eject the water within when necessary for ascending. At the top there was likewise an oar for ascending or descending, or continuing at any particular depth. A water-gauge or barometer determined the depth of descent, a compass directed the course, and a ventilator within supplied the vessel with fresh air when on the surface.

The entrance into the vessel was elliptical, and so small as barely to admit a person. This entrance was surrounded with a broad elliptical iron band, the lower edge of which was let into the wood, of which the body of the vessel was made, in such a manner as to give its utmost support to the body of the vessel against the pressure of the water. Above the upper edge of this iron band there was a brass crown or cover, resembling a hat with its crown and brim, which shut watertight upon the iron band; the crown was hung to the iron band with hinges so as to turn over sidewise when opened. To make it perfectly secure when shut it might be screwed down upon the band by the operator or by a person without.

There were in the brass crown three round doors, one directly in front and one on each side, large enough to put the hand through. When open they admitted fresh air. Their shutters were ground perfectly tight into their places with emery, hung with hinges, and secured in their places when 181shut. There were likewise several small glass windows in the crown for looking through, and for admitting light in the day-time, with covers to secure them. There were two air-pipes in the crown. A ventilator within drew fresh air through one of the air-pipes and discharged it into the lower part of the vessel; the fresh air introduced by the ventilator expelled the impure light air through the other air-pipe. Both air-pipes were so constructed that they shut themselves whenever the water rose near their tops, so that no water could enter through them, and opened themselves immediately after they rose above the water.

The vessel was chiefly ballasted with lead fixed to its bottom; when this was not sufficient a quantity was placed within, more or less according to the weight of the operator; its ballast made it so stiff that there was no danger of over-setting. The vessel, with all its appendages and the operator, was of sufficient weight to settle it very low in the water. About 200 lbs. of lead at the bottom for ballast could be let down 40 or 50 feet below the vessel; this enabled the operator to rise instantly to the surface of the water in case of accident.

When the operator would descend he placed his foot upon the top of a brass valve, depressing it, by which he opened a large aperture in the bottom of the vessel, through which the water entered at his pleasure; when he had admitted a sufficient quantity he descended very gradually; if he admitted too much he ejected as much as was necessary to obtain an equilibrium by the two brass forcing pumps which were placed at each hand. Whenever the vessel leaked or he would ascend to the surface he also made use of these forcing pumps. When the skilful operator had obtained an equilibrium he could row upward or downward, or continue at any particular depth, with an oar placed near the top of the vessel, formed upon the principle of the screw, the axis of the oar entering the vessel; by turning the oar one way he raised the vessel, by turning it the other way he depressed it.

A glass tube 18 inches long and 1 inch in diameter, standing 182upright, its upper end closed, and its lower end, which was open, screwed into a brass pipe, through which the external water had a passage into the glass tube, served as a water-gauge or barometer. There was a piece of cork with phosphorus on it put into the water-gauge. When the vessel descended the water rose into the water-gauge, condensing the air within, and bearing the cork with its phosphorus on its surface. By the light of the phosphorus the ascent of the water in the gauge was rendered visible, and the depth of the vessel under water ascertained by a graduated line.

An oar, formed upon the principle of the screw, was fixed in the forepart of the vessel; its axis entered the vessel, and being turned one way, rowed the vessel forward, but being turned the other way rowed it backward; it was made to be turned by the hand or foot.

A rudder, hung to the hinder part of the vessel, commanded it with the greatest ease. The rudder was made very elastic, and might be used for rowing forward. Its tiller was within the vessel, at the operator’s right hand, fixed at a right angle on an iron rod which passed through the side of the vessel; the rod had a crank on its outside end which commanded the rudder by means of a rod extending from the end of the crank to a kind of tiller fixed upon the left hand of the rudder. Raising and depressing the first-mentioned tiller turned the rudder as the same required. A compass marked with phosphorus directed the course, both above and under the water, and a line and lead founded the depth when necessary.

The internal shape of the vessel, in every possible section of it, verged towards an ellipsis, as near as the design would allow, but every horizontal section, although elliptical, yet as near to a circle as could be admitted. The body of the vessel was made exceedingly strong, and to strengthen it as much as possible a firm piece of wood was framed, parallel to the conjugate diameter, to prevent the sides from yielding to the great pressure of the incumbent water in a deep immersion. This piece of wood was also a seat for the operator.

183Every opening was well secured. The pumps had two sets of valves. The aperture at the bottom for admitting water was covered with a plate perforated full of holes to receive the water and prevent anything from choking the passage or stopping the valve from shutting. The brass valve might likewise be forced into its place with a screw if necessary. The air-pipes had a kind of hollow sphere fixed round the top of each to secure the air-pipe valves from injury; these hollow spheres were perforated full of holes for the passage of the air through the pipes. Within the air-pipes were shutters to secure them should any accident happen to the pipes or the valves on their tops.

BUSHNELL’S SUBMARINE

Wherever the external apparatus passed through the body of the vessel the joints were round and formed by brass pipes, which were driven into the wood of the vessel, the holes through the pipes were very exactly made, and the iron rods which passed through them were turned in a lathe to fit them; the joints were also kept full of oil to prevent rust and leaking. Particular attention was given to bring every part necessary for performing the operations, both within and without the vessel, before the operator, and as conveniently as could be devised, so that everything might be found in the dark except the water-gauge and the compass, which were visible by the light of the phosphorus, and nothing required the operator to turn to the right hand or to the left to perform anything necessary.

In the forepart of the brim of the crown of the submarine vessel was a socket, and an iron tube passing through the socket; the tube stood upright, and could slide up and down in the socket 6 inches. At the top of the tube was a wood screw (A), fixed by means of a rod, which passed through the tube, and screwed the wood screw fast upon the top of the tube; by pushing the wood screw up against the bottom of the ship and turning it at the same time it would enter the planks; driving would also answer the same purpose. When the wood screw was firmly fixed it could be cast off by unscrewing the rod, which fastened it upon the top of the tube.

Behind the submarine vessel was a place above the rudder for carrying a large powder magazine. This was made of two pieces of oak timber, large enough when hollowed out to contain 150 lbs. of powder, with the apparatus used in firing it, and was secured in its place by a screw turned by the operator. A strong piece of rope extended from the magazine to the wood screw (A) above mentioned, and was fastened to both. When the wood screw was fixed, and to be cast off from its tube, the magazine was to be cast off likewise by unscrewing it, leaving it hanging to the wood screw; it was lighter than the water, that it might rise up against the object to which the wood screw and itself were fastened.

Within the magazine was an apparatus constructed to run any proposed length of time under twelve hours; when it had run out its time it unpinioned a strong lock resembling a gunlock, which gave fire to the powder. This apparatus was so pinioned that it could not possibly move till, by casting off the magazine from the vessel, it was set in motion.

The skilful operator could swim so low on the surface of the water as to approach very near a ship in the night without fear of being discovered, and might, if he chose, approach the stem or stern above water with very little danger. He could 185sink very quickly, keep at any depth he pleased, and row a great distance in any direction he desired without coming to the surface, and when he rose to the surface he could soon obtain a fresh supply of air. If necessary he might descend again and pursue his course.

The first experiment I made was with about two ounces of gunpowder, which I exploded 4 feet under water, to prove to some of the first personages in Connecticut that powder would take fire under water.

The second experiment was made with 2 lbs. of powder enclosed in a wooden bottle and fixed under a hogshead, with a 2–inch oak plank between the hogshead and the powder. The hogshead was loaded with stones as deep as it could swim; a wooden pipe descending through the lower head of the hogshead and through the plank into the powder contained in the bottle, was primed with powder. A match put to the priming exploded the powder, which produced a very great effect, rending the plank into pieces, demolishing the hogshead, and casting the stones and the ruins of the hogshead, with a body of water, many feet into the air, to the astonishment of the spectators. This experiment was likewise made for the satisfaction of the gentlemen above mentioned.

I afterwards made many experiments of a similar nature, some of them with large quantities of powder; they produced very violent explosions, much more than sufficient for any purpose I had in view.

In the first essays with the submarine vessel I took care to prove its strength to sustain the great pressure of the incumbent water when sunk deep before I trusted any person to descend much below the surface, and I never suffered any person to go under water without having a strong piece of rigging made fast to it, until I found him well acquainted with 186the operations necessary for his safety. After that I made him descend and continue at particular depths, without rising or sinking, row by the compass, approach a vessel, go under her, and fix the wood screw mentioned in No. 2, and marked A, into her bottom, &c., until I thought him sufficiently expert to put my design into execution.

I found, agreeably to my expectations, that it required many trials to make a person of common ingenuity a skilful operator. The first I employed was very ingenious, and made himself master of the business, but was taken sick in the campaign of 1776 at New York before he had an opportunity to make use of his skill, and never recovered his health sufficiently afterwards.

After various attempts to find an operator to my wish, I sent one who appeared more expert than the rest from New York to a 50–gun ship lying not far from Governor’s Island. He went under the ship and attempted to fix the wooden screw into her bottom, but struck, as he supposes, a bar of iron which passes from the rudder hinge, and is spiked under the ship’s quarter. Had he moved a few inches, which he might have done without rowing, I have no doubt but he would have found wood where he might have fixed the screw, or if the ship were sheathed with copper he might easily have pierced it; but not being well skilled in the management of the vessel, in attempting to move to another place he lost the ship. After seeking her in vain for some time, he rowed some distance and rose to the surface of the water, but found daylight had advanced so far that he durst not renew the attempt. He says that he could easily have fastened the magazine under the stem of the ship above water, as he rowed up to the stern and touched it before he descended. Had he fastened it there the explosion of 150 lbs. of powder (the quantity contained in the magazine) must have been fatal to the ship. In his return from the ship to New York he passed near Governor’s Island, and thought he was discovered by the enemy on the island. Being in haste to avoid the danger he feared, he cast off the 187magazine, as he imagined it retarded him in the swell, which was very considerable. After the magazine had been cast off one hour, the time the internal apparatus was set to run, it blew up with great violence.

Afterwards there were two attempts made in Hudson’s River, above the city, but they effected nothing. One of them was by the afore-mentioned person. In going towards the ship he lost sight of her, and went a great distance beyond her. When he at length found her the tide ran so strong that, as he descended under water for the ship’s bottom, it swept him away. Soon after this the enemy went up the river and pursued the boat which had the submarine vessel on board, and sunk it with their shot. Though I afterwards recovered the vessel, I found it impossible at that time to prosecute the design any farther. I had been in a bad state of health from the beginning of my undertaking, and was now very unwell; the situation of public affairs was such that I despaired of obtaining the public attention and the assistance necessary. I was unable to support myself and the persons I must have employed had I proceeded. Besides, I found it absolutely necessary that the operators should acquire more skill in the management of the vessel before I could expect success, which would have taken up some time, and made no small additional expense. I therefore gave over the pursuit for that time, and waited for a more favourable opportunity, which never arrived.

In the year 1777 I made an attempt from a whale-boat against the Cerberus frigate, then lying at anchor between Connecticut River and New London, by drawing a machine against her side by means of a line. The machine was loaded with powder, to be exploded by a gunlock, which was to be unpinioned by an apparatus to be turned by being brought alongside of the frigate. This machine fell in with a schooner at anchor astern of the frigate, and concealed from my sight. By some means or other it was fired, and demolished the schooner and three men, and blew the only one left alive overboard, who was taken up very much hurt.

188After this I fixed several kegs under water, charged with powder, to explode upon touching anything as they floated along with the tide. I set them afloat in the Delaware, above the English shipping at Philadelphia, in December, 1777. I was unacquainted with the river, and obliged to depend upon a gentleman very imperfectly acquainted with that part of it, as I afterwards found. We went as near the shipping as we durst venture; I believe the darkness of the night greatly deceived him, as it did me. We set them adrift to fall with the ebb upon the shipping. Had we been within sixty rods I believe they must have fallen in with them immediately, as I designed; but, as I afterwards found, they were set adrift much too far distant, and did not arrive until, after being detained some time by frost, they advanced in the day-time in a dispersed situation, and under great disadvantages. One of them blew up a boat with several persons in it who imprudently handled it too freely, and thus gave the British that alarm which brought on the battle of the kegs.

BUSHNELL’S SUBMARINE.

A A. Oars. B. Rudder. C. Seat. D. Immersion tank. E. Pipe. F. Conning tower. G. Safety weight. H. Torpedo.

The above vessel, magazine, &c., were projected in the year 1771, but not completed until the year 1775.

189The above account appears in the fourth volume of the Transactions of the American Philosophical Society, and also in the fourth volume of Nicholson’s Journal of Natural Philosophy (1801).

Disappointed in the failure of his submarine boat to accomplish the things of which he felt sure it was capable, Bushnell went to France, and finally settled in Georgia, where he lived under the pseudonym of Dr. Bush until the year 1826, when he died at the ripe age of ninety.

General Washington, in a letter to Thomas Jefferson dated September 26, 1775, described Bushnell as “a man of great mechanical powers, fertile in inventions, and master of execution.” With regard to the submarine vessel he says, “I thought, and still think, that it was an effort of genius, but that too many things were necessary to be combined to expect much from the issue against an enemy who are always upon guard.”

Bushnell was undoubtedly the first inventor who combined in his design submarine navigation and torpedo warfare, and his invention, crude though it was, was the embryo of the modern diving torpedo-boat. The principles on which it was built may be traced in almost all the later submarine craft, and the improvements that have taken place have been mostly due to the general progress of engineering; the “oar placed near the top of the vessel” may be compared with Mr. Nordenfelt’s vertical screws.

“What will become of navies, and where will sailors be found to man ships of war, when it is a physical certainty that they may at any moment be blown into the air by means of diving-boats, against which no human foresight can guard them?”—M. St. Aubin (in 1802).

Robert Fulton was born in 1765 in Little Britain, Pennsylvania, and died at New York on February 24, 1815. In the year 1796 Fulton went to Paris, residing at the house of Joel Barlow, then resident minister for the United States, for seven years. While in Paris two projects occupied a large portion of his time. The first was a carcass, or box, filled with combustibles which was to be propelled under water and made to explode beneath the bottom of a vessel.

The second was a submarine boat. In 1797 Fulton submitted his vessel to the approval of the Government of the Directory, promising to furnish them with an agent by which they could dispose of their enemies, particularly British, in all parts of the world. A Commission appointed to examine 191his ideas reported favourably on them, but the Minister of the Marine would have nothing to do with them. Fulton then made a model of his submarine, which met with the approval of another Commission, but again the Minister of Marine was obdurate. Fulton now tried the Dutch Government, but they did not look with any favour on the new methods of under-water warfare.

Three years later (in 1800), Fulton approached Napoleon, who appeared to think well of his schemes, for he appointed La Place, Mouge, and Volney to examine them, and also gave him 10,000 francs to carry out experiments.

In May, 1801, Fulton built his first submarine boat, the Nautilus. She made her first trial on the Seine opposite the Invalides. Fulton and one sailor formed the crew and with nothing but a candle to light the interior, they remained submerged twenty minutes. On coming to the surface they found that the current had carried them some considerable distance down the river, so again sinking beneath the surface Fulton steered his vessel to the point of departure. On July 3, 1801, Fulton embarked with three companions on board his “plunging boat” in the harbour of Brest; the four men descended in the Nautilus a depth of 23 feet, which seemed to be the greatest depth the boat would stand. They remained below in total darkness for one hour. At subsequent descents Fulton tried to employ candles, but found they destroyed the vitality of the air. Bulls-eyes were then inserted 192in the top of the boat, and these alleviated, to a certain extent, the prevailing gloom.

Once Fulton with three persons is said to have stayed for six hours at a depth of 5 feet by the aid of a copper globe of 1 cubic foot capacity “containing 200 atmospheres”; on another occasion he sailed out of the harbour, then quite suddenly lowered his mast, and disappeared from view, showing how quickly he could submerge his craft.

The Nautilus was a cigar-shaped boat about 7 feet in diameter. The hull was of copper, but supported by iron ribs. It had one mast, a mainsail, and a jib, which moved her at the rate of two miles an hour on the surface, and were stowed in two minutes when preparing to dive. Under the water the vessel was moved by the exertions of two men, the “propelling engine” consisting of a wheel rotated by a hand-winch, at the rate of 2½ miles an hour. A third man steered from a small conning tower while Fulton governed the position of the boat by regulating the machine which kept her balanced and determined her depth below the surface. She was 21 feet 4 inches long, and was furnished with a keel under the whole length of the hull.

Having proved that man could exist for some time beneath the surface in a vessel and could steer it, Fulton made experiments with a torpedo or case of explosive. On the first occasion he blew a small ship to fragments with 20 lbs. of powder.

As he had shown his ability to blow up old 193hulks in French waters, Fulton proposed to build a large submarine vessel, but failed to attain official support, partly because those in authority considered that submarine explosions were not legal warfare. One of these writes that “this type of warfare carries with it the objection that those who undertake it and those against whom it is made, will all be lost. This cannot be called a gallant death.”

THE “NAUTILUS” OF ROBERT FULTON.

Fulton asked a reward for each vessel he destroyed, the re-imbursement of the price of his ship (40,000 francs), and lastly a patent giving himself and his crew the quality of belligerents, so that if they were captured they would not be hanged as pirates.

That submarine warfare was considered by some “immoral” at the time is evident from the statement of Admiral Pleville le Pelle, the Minister of Marine. “It seems impossible to serve a Commission for belligerency to men who employ such a method of destroying the fleet of the enemy.”

194As Fulton was equally unsuccessful in his effort to interest Napoleon in steam navigation, the disappointed inventor crossed the Channel in order to discover whether the English would show themselves any readier to grasp new ideas, and would prove capable of foreseeing the possibilities of his inventions.

It was in May, 1804, that Fulton came to England, and from some accounts it would appear that the English Government, alarmed at Fulton’s plans, invited him, at the suggestion of Earl Stanhope, to lay his ideas before them. The inventor explained to the naval authorities that his system rendered above-water fleets unnecessary, but they did not at all relish the idea of fighting beneath the waves.

Mr. Pitt, however, then Prime Minister, was very much taken with the American and his torpedoes, and appointed a Commission to watch certain experiments. The Commission consisted of Mr. Pitt, Lords Mulgrave, Melville, and Castlereagh, Sir Joseph Banks, Mr. Cavendish, Admiral Sir Howe Popham (the only naval man in the Commission), Major Congreve, and Sir John Rennie.

Although Mr. Pitt and some few others were disposed to look with favour on Fulton’s devices, the Commission as a whole were of the same opinion as Admiral Earl St. Vincent, who remarked that it was foolish for Pitt to encourage “that gimcrack, for so he was laying the foundation for doing away with the Navy, on which depended the strength and prestige of Great Britain.”

195Thus Fulton’s plans were declared to be unpracticable by the Commission. Mr. Pitt still refused to relinquish his faith in Fulton, and on October 15, 1805, he caused an experiment to be made on an old Danish brig which was blown to pieces by 170 lbs. of powder. Even this wonderful result failed to appeal to those in authority, for while they recognised that torpedoes and submarine boats might prove useful to weaker nations, and might be used with effect by them, they declared that such weapons of warfare could have no place in the naval equipment of the Mistress of the Seas. It is said that Fulton was offered a large sum of money to suppress his inventions, but this is doubtful. Full details of Fulton’s boat and various confidential reports are said to be amongst the secret papers of the Record Office.

In the year 1806 Fulton returned to New York and made overtures to the United States Government. Receiving some encouragement he succeeded, after many unsuccessful efforts, in blowing up a vessel which had been prepared for the purpose. Admiral Porter in 1878 wrote, “A Midshipman nowadays at our Torpedo School at Newport, would consider himself disgraced if he failed to destroy a ship of the line in ten minutes with less explosive powder, especially if the ship lay at anchor and gave him every opportunity to operate upon her.” The admiral seems to forget that Fulton was a pioneer, and laboured under every possible disadvantage in prosecuting his work.

196In 1810 Congress appropriated 5,000 dollars to assist Fulton in developing his ideas. After many trials, most of which were failures, the United States brig Argus was prepared for Fulton’s final experiment. By order of Commodore Rodgers, the vessel had been so protected with spars and netting reaching to the bottom as to be practically unassailable, and the attempt to blow her up by a submarine torpedo was unsuccessful, as Fulton himself acknowledged, though he could not refrain from adding that “a system then in its infancy, which compelled a hostile vessel to guard herself by such extraordinary means, could not fail of becoming a most important mode of warfare.”

Could Fulton have foreseen the manner in which his crude devices were to develop into the Whitehead torpedo and submarine boat of to-day, he would have had something to cheer him in his hours of depression.

After the failure of the Argus experiment, Fulton devoted his attention to steam navigation, and was more successful in this line than in his efforts to introduce torpedo warfare, though he considered the latter a matter of greater moment than the former.

In a letter to Joel Barlow, dated New York, August 22, 1807, Fulton says, after describing his celebrated steam voyage up the Hudson:—

“However, I will not admit that it (steam navigation) is half so important as the torpedo system of defence or attack, for out of this will grow the 197liberty of the seas—an object of infinite importance to the welfare of America and every civilised country. But thousands of witnesses have now seen the steamboat in rapid movement and they believe; but they have not seen a ship of war destroyed by a torpedo, and they do not believe. We cannot expect people in general to have knowledge of physics or power to reason from cause to effect, but in case we have war and the enemy’s ships come into our waters, if the Government will give me reasonable means of action, I will soon convince the world that we have surer and cheaper modes of defence than they are aware of.”

Referring to the failure of Fulton to induce the various Powers to adopt his submarine boat and torpedo, Admiral Porter said (in 1878) that naval men seventy years ago, whether in this country or abroad, saw no prospect in the success of Fulton’s scheme but the destruction of the service which was then their pride and glory, and it was hardly to be wondered at that all plans to destroy ships by other means than the legitimate eighteen-pounder were looked upon with disfavour. So the torpedo slept, but in time it reappeared invested with such deadly attributes that no nation could afford to disregard its claims as the most destructive implement of naval warfare yet devised. During the “Second War of Independence” (1812–1814) some unsuccessful attacks were made by a diving vessel on British men-of-war, and this is generally understood to be one of Fulton’s vessels.

198The following extract is from a work published by James Kelly in 1818.

“About this time—that is the summer of 1813—some infamous and insidious attempts were publicly encouraged for the destruction of the British men-of-war upon the coasts of America by torpedoes and other explosive machinery, as will appear from the following extract from the American newspapers.

“‘A gentleman at Norwich, U.S., has invented a diving boat, which by means of paddles he can propel under water at the rate of three miles an hour, and ascend and descend at pleasure. He has been three times under the bottom of the Ramilies off New London. In the first attempt, after remaining under some time, he came to the top of the water like the porpoise for air, and as luck would have it, came up but a few feet from the stern of the Ramilies.

“‘He was observed by a sentinel on deck who sang out “Boat ahoy!” immediately on hearing which, the boat descended without making a reply. Seeing this an alarm gun was fired on board the ship and all hands called to quarter, the cable cut and the ship got under weigh with all possible despatch, expecting to be blown up by a torpedo.

“‘In the third attempt he came up directly under the Ramilies, and fastened himself and his boat to her keel, where he remained half an hour and succeeded in perforating a hole through her upper, but while engaged in screwing a torpedo to her bottom the screw broke and defeated his object for that time. So great is the alarm and fear on board the Ramilies of some such stratagem being played upon them, that Commodore Hardy has withdrawn his force from before New London and keeps his ship under weigh all the time instead of lying at anchor as formerly.’”

This “dishonourable attempt,” evidently made under the sanction of the American executive, induced 199Sir Thomas Hardy to address letters to the public authorities of New London, and to the Government of the States of Connecticut on the subject. In these Sir Thomas Hardy states that “he is fully apprised of the efforts to destroy the Ramilies, and that he shall do all in his power to defeat them, but he thinks it right to notify publicly that since the attempt he had ordered on board from fifty to a hundred American prisoners of war, who in the event of the efforts to destroy the ship by torpedoes or other infernal inventions being successful, would share the fate of himself and his crew. That in future whenever a vessel was taken, the crew would be kept on board until it has ascertained that no snare was laid for the destruction of British seamen, and that the regulations would be observed when a vessel was boarded and abandoned by her crew.”

Sir Thomas adds that his example would be followed by all the commanders of his squadron.

These representations had some effect on the American public, for on the contents of the letter being known a public meeting was held, and as many of the citizens had relations and friends prisoners of war on board the British squadron, it was determined to present a remonstrance to the American executive against the further employment of torpedoes in the ordinary course of warfare.

Admiral Porter says that these submarine attacks were mostly unauthorised by the U.S. Government, and disapproved by the navy, “who preferred the 200more chivalric method of sinking vessels with eighteen and twenty-four pounders, or mowing down their crews with grape and canister.”

It is almost certain that the submarine craft that attacked H.M.S. Ramilies as she lay off New London was one of Fulton’s boats.

In the year 1814 Fulton constructed the Mute, a huge submarine capable of holding a hundred men, and deriving its name from the silent engine that propelled it. The Mute was 80 feet 6 inches long, 21 feet wide, and 11 feet deep. It was armoured on the top with iron sheets, beneath which was a wood lining almost a foot in thickness. Before the trials could be completed Fulton died, and thus the story of this ardent inventor’s notions concerning submarine warfare comes to a close.

In 1810 Fulton published at New York a book, “Torpedo War and Submarine Explosions,” in which he gives an account of the various devices he had contrived for blowing up ships, piers, &c., and of the actual experiments he had made. He seems to have elaborated his submarine boat after his torpedo had been invented, and his idea was that an under-water vessel would be useful in discharging torpedoes. His method of attack was to float the torpedo down to the object to be attacked, and to guide and even explode them by means of lines. He seemed not to have thought of the use of the spar torpedo as we know it to-day.

From the death of Robert Fulton down to the commencement of the American Civil War no very startling developments in under-water warfare are to be chronicled. During the Schleswig-Holstein War of 1848–50 the modern subaqueous explosive mine first came into use in actual warfare, and mines were also employed during the Crimean War; in 1859 by the Austrians at the time of the threatened attack on Venice by the French, and by the Chinese in 1857–58 to defend the streams in the neighbourhood of Canton.

The mine and the torpedo both played their part in the American Civil War, and since then both these weapons have been adopted as valuable factors of offence and defence by all the great Powers. When the Southern Confederacy seceded from the United States in 1861, one of the first steps of its naval department was to form a torpedo section to protect approaches to places liable to attack by the Northern fleet. It was during the 202war that the idea was applied of taking the mine to the hostile ship by means of a boat, for the mine, besides being immovable, was liable to be picked up or cut adrift by the enemy. A charge of powder was placed at the end of a long pole carried in the bows of the boat; when darkness came on the boat crept up to the enemy, the pole and charge were run under water until in contact with the hull of the enemy, and the explosive was then ignited by means of electricity. Thus came into being the “spar” or “outrigger” torpedo, a weapon which still finds a place in the armament of the British fleet. The Confederates affixed the spar torpedo to at least one ironclad ship and many small steam vessels, and much damage was inflicted on the enemy by its employment.

It must be remembered that automobile or fish torpedoes had not been invented at this time, and that the only under-water weapons used on both sides were fixed mines and spar torpedoes.

It was in order to use the spar torpedo to the greatest advantage that the diving torpedo-boat was employed, and in this chapter we shall have to deal with a very famous incident in the history of submarine navigation, namely, the sinking of the Federal frigate Housatonic by a submarine boat manned by the Confederates and armed with a spar torpedo.

Early in the war the Federal or Northern Government entered into negotiations with a 203Frenchman, whose name we have been unable to discover, to build and operate a submarine boat against the Confederate or Southern vessels. In particular the North desired to blow up the Confederate Merrimac in Norfolk Harbour. It has been stated that $10,000 were to be paid for the boat when finished, and $5,000 for each successful attack with her. The boat was apparently constructed at the Navy Yard at Washington, and paid for by the Federals, but before they could learn the art of navigating the vessel the Frenchman, taking his gains with him, left the country. Whether the boat would have proved of much value is to be doubted, and the probability is that the inventor would have been as unsuccessful as were the Federals in working the craft.

Admiral Hichborn terms it “an absurd arrangement of duckfoot hand-worked paddles in an age when the screw-propeller was in common use.”

It was 35 feet long and 6 feet in diameter, and was built up of steel plates. Immersion was obtained by the admission of water, and the mode of propulsion on the surface or below the water was by eight pairs of oars or paddles which opened and shut like the leaves of a book, and were worked by sixteen men placed half on the port and half on the starboard. The maximum speed was 2½ knots on the surface. Fresh air was produced by two machines—one consisted of a bellows passing air over a chamber of lime, the other produced oxygen. The armament was a spar torpedo. According to one account it was towed round by a steamboat to Port Royal and foundered in a storm of wind off Cape Hatteras.

Early in 1863 the Confederates cut down a 204gunboat at Charleston and converted it into a half-submerged torpedo-boat. It does not appear to have done any mischief, but Mr. H. W. Wilson, in his “Ironclads in Action,” says that it may have been the vessel which on the night of April 19, 1864, approached the Wabash. The Northern vessel was at anchor when something was seen near her in the water and challenged. She slipped her cable and went ahead, opening a heavy fire upon the strange craft, after which it disappeared, whether as the result of a shot or not is uncertain.

On the night of October 5, 1863, an attack was made upon the United States’ ironclad, New Ironsides, of 3,486 old American tons, carrying twenty guns, at anchor in the midst of the blockading squadron off Charleston, by a submarine vessel owned by the Confederates. This boat was built by Theodore Stoney at Charleston, and was called the David, a name given by the Southerns to some subsequent under-water craft in memory of the fight between the lad David and the giant Goliath.

This first David was 54 feet long and at her widest depth 6 feet in diameter. She was cigar-shaped, and was propelled by a screw driven by steam power. When in action she lay almost flush with the water, her funnel and steering chamber alone projecting above the surface. (Another report says that she was so far submerged that only about 10 feet in length of the hull was visible 2 feet above the water.) Her armament consisted of a single spar torpedo with 205a 60 lb. charge of gunpowder, which was folded alongside when not in use, and only run out on an iron bar to a distance of 10 feet for the actual attack, ignition being effected by an acid fuse rendered active by a collision nearly end on. Her maximum speed was 7 knots an hour.

“With a crew of volunteers Lieut. Glassell took her out, and, a little after nine in the evening, the Ironsides watch saw her approaching. She looked to them like a plank, since all that could be seen was the coaming of her hatchway. Several officers were on deck, and the David was at once hailed. Her only answer was a volley of musketry which mortally wounded one Federal officer. An instant later the ironclad received a violent blow from the explosion of a torpedo containing 60 lbs. of powder, which threw up a column of water, shook the ship severely and broke one man’s leg on board her. After the smoke and spray had cleared away the Ironsides was found to be uninjured and the boat had disappeared. Her crew jumped overboard at the moment of firing the torpedo, and Glassell, as he swam about, hailed a Northern coal schooner, on board which he was taken, whilst a second man escaped to the Ironsides. The engineer of the David, however, after the explosion swam back to the boat, to which he found the pilot clinging for dear life, as he was unable to swim. Helping him on board he discovered that the David could yet float, though the explosion had put out the fires, and together the two took her back to Charleston.”

In a paper on “Offensive Torpedo Warfare,” read before the Royal United Service Institution in 1871, Commander W. Dawson, R.N., writes of the attack as follows:—

“Observe the elements of failure. A charge destructive enough if exploded in actual contact, but innocuous to a 206strongly built ship by the accidental interposition of seven or eight feet of water, yet held near enough to the operating vessel to place her in immediate danger, either from the direct action of the explosion upon her thin sides, or from her being swamped by the falling columns of water, self-acting fuses, so arranged as to necessitate the most exposed direction of attack, viz., the enemy’s broadside; an acid composition sluggish enough in its action to allow time for the boat to rebound after collision, the few feet required to render the explosion harmless, and last, not least, a commander and crew, who, having never fired their weapon before, were in greater terror of their own torpedo than the enemy would have been. Can we wonder that the conductor of this enterprise jumped overboard before the explosion, that his little vessel had her fires extinguished and was nearly swamped, and that the New Ironsides, though severely injured, was not compelled to return into port? The crew, deserted by their commander, relighted the fires, and brought the boat safely into harbour.”

The first attempts of the Confederates with their submarine boat having proved a failure, the Federal officers on the outside blockade grew somewhat careless, and the final result of the Confederates’ efforts was that one of the fine new vessels of the Federal fleet, the Housatonic, 1,264 tons, and carrying 13 guns, was destroyed in Charleston harbour on the night of February 17, 1864.

The David that accomplished this feat, unique in the annals of submarine warfare, had been built at Mobile by Messrs. McClintock and Howgate, and brought overland to Charleston. She had lateral fins by which she could be raised and submerged, and ballast tanks to lighten her and enable her to 207rise to the surface, though these, we read, uniformly refused to act. She carried no reserve of air, and hence she well deserved the name “peripatetic coffin.” She was about 60 feet long, and elliptical in transverse section. Her crew consisted of nine men, eight of whom propelled the vessel by operating cranks on the screw shaft, while the ninth acted as pilot.

THE “DAVID” THAT SANK THE “HOUSATONIC.”

It was originally designed to make the attack by passing under the keel of a ship towing a contact torpedo, having a small reserve buoyancy. Under favourable conditions the torpedo would be drawn under water when the vessel descended, strike the bottom of the ship, and explode on contact.

During her first cruise under the orders of Lieut. Payne (or Paine?) an enemy’s vessel passed close to her without noticing her; the swill raised by her paddles sunk the David, and Payne alone of all the crew saved himself. When the boat was recovered from the bottom, Lieut. Payne persuaded eight sailors to embark with him; a squall of wind caused the boat to fill with water, Lieut. Payne and 208two bluejackets alone escaping by leaping out of her as she went down. No sooner was the boat recovered from the bottom than her gallant commander offered to try again. A new crew volunteered, and all went well for a time. But one night, off Fort Sumter, she capsized, and only four (of whom Lieut. Payne was one) escaped.

A third time she was raised, and the next essay was made in the Cooper River, under the lead of Mr. Aunley, one of the men who had constructed the boat. Alas! She sank for the fourth time, having caught her nose in the bottom, and all hands were drowned. Once more she was recovered only to foul the cable of a schooner at anchor in the harbour, and to sink for a fifth time.

Up to this time five crews of eight each had volunteered for service in the ill-starred David, and of these forty men, no less than thirty-five had perished. The brave Southern sailors, instead of fighting shy of the submarine, were as ready as ever to face death again. The David was recovered, and Lieut. Dixon, with Captain Carlson, both officers in the Confederate army, volunteered with five others to take her out against the Northern fleet. The Federal corvette Housatonic lay outside the bar in Charleston harbour, and it was on this vessel that on the evening of February 17, 1864, the attack was made, an attack which is thus vividly described by Admiral David Porter, U.S. Navy, in his book, “The Naval History of the Civil War”:—

209“At about 8.45 p.m. the officer of the deck on board the unfortunate vessel discovered something about 100 yards away, moving along the water. It came directly towards the ship, and within two minutes of the time it was first sighted was alongside. The cable was slipped, the engines backed, and all hands called to quarters. But it was too late—the torpedo struck the Housatonic just forward of the mainmast, on the starboard side, in a line with the magazine. The man who steered her knew where the vulnerable spots of the steamer were, and he did his work well. When the explosion took place the ship trembled all over as if by the shock of an earthquake, and seemed to be lifted out of the water, and then sunk stern foremost, heeling to port as she went down. Her captain, Pickering, was stunned and somewhat bruised by the concussion, and the order of the day was ‘Sauve qui peut.’ A boat was despatched to the Canandaigua, not far off, and that vessel at once responded to the request for help, and succeeded in rescuing the greater part of the crew. Strange to say, the David was not seen after the explosion, and was supposed to have slipped away in the confusion; but when the Housatonic was inspected by divers, the torpedo boat was found sticking in the hole she had made, and all her crew were dead in her. It was a reckless adventure these men had engaged in, and one in which they could scarcely have hoped to succeed. They had tried it once before inside the harbour, and some of the crew had been blown overboard. How could they hope to succeed on the outside, where the sea might be rough, when the speed of the David was not over five knots, and when they might be driven out to sea! Reckless as it might be, it was the most sublime patriotism, and showed the length to which men could be urged on behalf of a cause for which they were willing to give up their lives and all they held most dear.”

It was by deeds such as these that North and South are to-day united, as they never were before.

210When Lieutenant Hobson, during the Spanish-American war, offered to sink the Merrimac at the entrance of Santiago harbour, half the American sailors were wild to join in the hazardous task, and if volunteers for submarines had been requested it is certain that men would have come forward in 1898 as they did so nobly in 1864.

THE SINKING OF THE “HOUSATONIC.”

The David, that finally succeeded in sinking the Housatonic, proved so costly an experiment in human lives, because she was not worked as a submarine, but as a low freeboard surface torpedo boat, a purpose for which she was never designed, and for which, as we have seen, she proved dangerous and inefficient. As some one has observed, she was intended for submerging at pleasure—her own pleasure, however, not that of her crew. During the attack on the Housatonic, on February 17th, the vessel did not run under water. The crew submerged it to the hatch coaming and left the cover open against the protest of Mr. Howgate, who 211despatched it on its mission. The attack was made by a spar torpedo, and the wave thrown up by its explosion, when it struck the Housatonic, entered the open hatchway and swamped the vessel. Most accounts of the feat of the David state that all the crew were drowned. From the following extract it would seem that the gallant captain survived the attack.

“I remember on one occasion during the war,” wrote Hobart Pacha in an article, “The Torpedo Scare,” appearing in Blackwood’s Magazine for June, 1885, “when I was at Charleston, meeting in a coffee-room at that place a young naval officer (a Southerner) with whom I got into conversation. He told me that that night he was going to sink a Northern man-of-war which was blockading the port, and invited me to see him off. I accompanied him down to his cigar-boat, as he called it, and found that she was a vessel about forty feet long, shaped like a cigar, on the bow of which was placed a torpedo. On his stepping on board with his crew of four men, his boat was immersed till nothing but a small piece of funnel was visible. He moved off into the darkness at no great speed—say at about five miles an hour. The next evening, on visiting the coffee-house, I found my friend sitting quietly smoking his pipe. He told me that he had succeeded in making a hole in the frigate which he had attacked, which vessel could, in fact, be seen lying in shallow water, some seven miles off, careened over to repair damages. But he said that, on the concussion made by firing the torpedo, the water had rushed in through the hatches of his boat, and she had sunk to the bottom. All his men were drowned. He said he didn’t know how he escaped himself, but he fancied that he came up through the hatches, as he found himself floating about, 212and swam on shore. This affair was officially reported by the American blockading squadron, corroborating the fact of the injury done to the frigate, and stating that the torpedo-boat was got up, with four dead bodies in her hold. Here is one system which might be utilised in naval warfare if perfected, and I am given to understand that a submarine torpedo-boat is already invented by Mr. Nordenfelt.”

After the sinking of the Housatonic the Federals again turned their attention to submarine warfare, and in October, 1864, some trials were made on the Hudson with a boat named the Stromboli, constructed at Fairhaven from the designs of an engineer, one Wood. It was not, properly speaking, either a submarine or a diving boat, but by letting in a certain quantity of water into the reservoirs it could be brought flush with the surface, leaving only the conning tower, the chimney and the ventilator above the waves. A steam engine propelled the Stromboli at a speed of ten miles an hour, while a spar torpedo formed the armament. On the 16th of November, 1864, the Stromboli was under the command of John Lay, and was ordered to proceed to Hampton Roads to attack the Confederate cruisers. It appears to have arrived on the 6th of December, but its subsequent doings are not to be discovered.

Another semi-submarine which figured in the American Civil War was the Sputyen Duyvil, built by Messrs. Mallory & Co., from the plans of Messrs. William Wood and John Lay. She was made of 213wood, and her dimensions were, length 74 feet, beam 20 feet, draught 7½ feet. On going into action she could be immersed to a depth of 9 feet in order to put her armoured side below water, she was to fight with her deck, which was placed with 3–in. armour, flush with the water. Amidships, and standing about 3 feet above the deck, was a pilot house from which the boat could be steered. The Sputyen Duyvil was attached to James River’s squadron during the year 1865, but there is no evidence that she was ever brought into use; her torpedoes were fired on contact, and were worked through a hollow iron boom projecting from the bow, and having inside it a rod to which the torpedo was to be attached.

THE “SPUTYEN DUYVIL.”

“When you have been shown lovingly over a torpedo by an artificer skilled in the working of its tricky bowels, torpedoes have a meaning and a reality for you to the end of your days.”—Rudyard Kipling.

“The next great naval war will bestow upon the torpedo and its users a halo of romance which will eclipse entirely that surrounding the gun and the ram.”

“The arts of shipbuilders and steel-workers stand for nothing when a Whitehead torpedo succeeds in striking a ship’s bottom and tears and rends it with the explosion of 200 lbs. of gun-cotton. In the hands of ignorant or careless people the Whitehead is nearly as dangerous to its friends as to its foes, but in the hands of skilful and resolute men it is the most terrible engine of warfare which the world has ever seen.”—Lieut. G. E. Armstrong, in Torpedoes and Torpedo Vessels.

“The spar-torpedo is the dagger which a determined man plunges into the body of an enemy who does not protect himself with a coat of mail; the Whitehead torpedo is the bullet which, easy to discharge from afar, kills the enemy in its path.”—Lieut. C. Arnault.

Although twenty-five Federal vessels are known to have been sunk and destroyed, and nine others 215more or less injured by various kinds of torpedoes during the great war of secession, the many objections to the employment of the spar-torpedo were only too evident. The necessarily close proximity of the craft attacking and the ship attacked, resulted in some cases in the destruction of the former as well as the latter, and inventive minds therefore set to work to devise a submarine weapon which could be discharged at the enemy from a distance. The result was the automobile fish torpedo, an instrument of warfare which is to be found in every navy, and the sole armament of the modern submarine boat.

In a history of under-water warfare, a description of the Whitehead torpedo, which is in reality a crewless submarine boat, must find a place, but a word may be said beforehand respecting the difference between the “Mine” and the “Torpedo.”

The mine is a stationary charge of explosive contained in a case moored beneath the surface of the water. The torpedo is a case of explosive, which by some means or other is provided with the power of aggression, either on or below the surface. The mine awaits the enemy, in fine, whilst the torpedo goes to seek him. Into the details of Submarine Mining it is not proposed to enter here.

Torpedoes are divided into two classes—(1) Uncontrollable. (2) Controllable. Class I. comprises Projectile, Rocket, Drifting, and Automobile torpedoes; the last named are now practically the only kind of uncontrollable torpedo employed. In 216nearly all navies the “Whitehead” is the type adopted; the German uses the “Schwartzkopff,” which differs only from the former in that it is made of phosphor-bronze instead of steel. Controllable torpedoes comprise Spar, Towing, Dirigible, Locomotive and Automobile. Great Britain has adopted the Brennan locomotive torpedo for coast defence only, and she still retains the spar-torpedo, although it is doubtful if it would ever be used in a naval engagement.

Somewhere about the year 1860 an officer of the Austrian Marine Artillery devised plans for the construction of a surface screw boat or fire-ship, to be propelled either by a steam or hot-air engine, or by clockwork, to be steered from the shore by means of long tiller ropes, and to carry in its fore part a large charge of gun-cotton, the explosion of which was effected by means of a pistol in communication with a movable blade at the bow, and with one vertical and two horizontal spars, so that if any of these arrangements came into contact with the object aimed at the pistol was fired and the charge exploded.^[8] On the death of this officer, which took place before he had time to put his ideas into practice, the pen drawings came into the possession of Captain Lupuis, an officer of the Austrian navy. During the sixties Captain Lupuis 217carried out a series of experiments with a view of discovering a means of propelling a floating torpedo along the surface of the water and directing it by means of ropes and guiding lines. The forward end of the torpedo was to be charged with explosive, and on coming in contact with a vessel it would be exploded by the automatic firing of a pistol. The motive power was to be either steam or clockwork. The Austrian Government, before whom he laid his plans, told him that they could not consider them until he discovered some reliable form of motor and a better method of steering. In the year 1864 Captain Lupuis sought the advice and assistance of a Mr. Whitehead, at the time manager to an engine manufacturing company at Fiume, and the result was that the latter invented the famous locomotive torpedo that bears his name.

The first Whitehead fish torpedo was produced in 1866, but it was a very much less terrible engine of destruction than it is to-day. It was built of steel, was 14 inches in diameter, 16 inches at the fins, and weighed 300 lbs. Its explosive charge was 18 lbs. of dynamite. The motive power was compressed air charged to a pressure of about 700 lbs. to the square inch, and the air chamber was made of ordinary boiler plates. The speed was only six knots for a short distance. Mr. Whitehead’s design was a great improvement on Captain Lupuis’s. It ran beneath the waves, it was independent of outside aid when once started, and 218its motive power was superior both to steam and clockwork. Still it was by no means a perfectly reliable weapon, and its great fault was that it failed to keep a uniform depth in the water.

By 1868 Mr. Whitehead had invented the “Balance” Chamber, which has since proved a very effective means of controlling the depth of the torpedo. In 1868 a committee of Austrian naval officers experimented with two Whiteheads whose dimensions were as follows:—

The trials were carried out at Fiume; the Austrian gunboat Genese was handed over to Mr. Whitehead to fit with a bow ejecting tube, and the target consisted of the yacht Fantasie. The result was the adoption of the Whitehead by the Austrian Government in 1868.

Although the Austrian Government purchased the secret of the Whitehead torpedo, they were unable to secure the exclusive right of manufacture. On the invitation of the English Admiralty, Mr. Whitehead came to England in 1870, bringing with him two torpedoes and a submerged tube.

219The first two English torpedoes were of two sizes and of the following dimensions:—

The trials were carried out on board the Oberon, an old paddle-wheel sloop. Over 100 runs were made and the average speed obtained was 8·5 knots for a distance of 200 yards, and 7·5 knots for 600 yards. The balance chamber proved capable of keeping the torpedo at the required depth, although at times it behaved in an erratic fashion. After the trials, the committee of investigation reported that in their opinion “any maritime nation failing to provide itself with submarine locomotive torpedoes, would be neglecting a great source of power both for offence and defence.” Acting on this verdict the English Government, in April, 1871, purchased the secret and right of manufacture of the Whitehead torpedo for £15,000.

Naturally certain conservative officers, incapable of recognising the possibility of improvement in the weapons of naval warfare, sneered at the torpedo, but their scorn had little effect, and in a short time all the great navies of the world had adopted the Whitehead or some similar form of fish torpedo. One instance will be sufficient to show that naval men failed in many cases to realise the potential value of this instrument of destruction.

220Commander W. Dawson, R.N., in a paper read before the Royal United Service Institution, commenting on the drawbacks of the Whitehead, remarked that he did not attach much value to self-contained powers of locomotion in submarine projectiles, and said that he believed that progress must be looked for in modification of the outrigger and the towing torpedoes which were free from complicated mechanism, simple in their application, and above all safe to the operators and to friendly vessels.

In 1876 Mr. Whitehead produced an improved torpedo. It had a diameter of only 14 inches, a speed of 18 knots for a distance of 600 yards, and a charge of 26 lbs. of gun-cotton. It was fitted for the first time with the “servo-motor,” which, as Lieutenant Armstrong remarks, makes the steering almost as perfect as if a mannikin helmsman were steering the torpedo from the inside. In 1884 it was still further improved. The speed was raised to 24 knots and the explosive charge was increased. In 1889 the speed was again raised to 29 knots for 1,000 yards, and the charge was 200 lbs. of gun-cotton.

The Whitehead torpedoes carried in His Majesty’s ships to-day are of two dimensions:—

221Several different patterns of Whitehead torpedoes are turned out at the various factories, but they all resemble each other in their main characteristics.

MARK IX., R.G.F., FOURTEEN INCH WHITEHEAD TORPEDO.

The “baby,” as the seaman calls it, is a cigar-shaped object made of steel or of phosphor-bronze. It is divided into compartments, and in the foremost of these is placed in war time the explosive charge. At the head is the end of a pointed rod penetrating the explosive, and when the torpedo comes into contact with a solid object, the point of the rod is driven in against a detonator which explodes the charge and tears a hole in the ship’s bottom. Abaft the explosive chamber comes the air chamber; herein is stored the compressed air which acts as the motive power of the torpedo. Behind this is the balance chamber, where all the automatic steering apparatus is fixed. Abaft this are the engines; these are worked by the compressed air from the air chamber and revolve a shaft, on to the end of which are two screw-propellers working in opposite directions. Furthest aft of all 222is another hollow air compartment termed the buoyancy chamber. There are four rudders, two horizontal for steering from right to left, and two vertical for maintaining the proper depth.

One might be forgiven for thinking that the narrower the fore part of the torpedo the faster would be its speed; a study of fishes shows, however, that this is not Nature’s principle, and the Whitehead is therefore thicker at the fore than at the tail; technically, it has “a full entrance with a very fine run.” The Whitehead is divided into eight sections, containing:—

1.

The firing arrangement.

2.

The explosive chamber.

3.

The air chamber.

4.

The “balance” chamber.

5.

The engine chamber.

6.

The buoyancy chamber.

7.

The bevel wheel chamber.

8.

The horizontal and vertical rudders and propellers.

At the head of the Whitehead is the end of a pointed steel rod which penetrates the chamber containing the explosive. When the torpedo’s nose comes into contact with a ship’s side, or in fact any rigid object, the point of this rod is driven in against a detonator cap inserted in the centre of the charge: the immediate result is an explosion sufficient to tear a large hole in the ship’s hull. The detonator is fulminate of mercury, 223which, when ignited by a sudden blow, expands to about 2,500 times its own size. The sudden expansion gives such a severe blow to the gun-cotton around it that it at once explodes. Special precautions have to be taken to prevent the torpedo from damaging the ship from which it is fired: it might happen through carelessness that a lieutenant would fire one with the port closed, and so three checks are provided. The rod is so arranged that it cannot go back until a small “collar” with propeller fans on it has revolved off. When the torpedo enters the water the fans begin to turn, and when it has run some 30 yards the collar is worked off. Even then the charge will not explode unless the blow to the rod is severe enough to shear off a little copper pin standing in the way. Lastly there is a third precaution in the shape of a safety pin which holds the collar fixed until it is withdrawn at the last moment as the torpedo is launched into the tube.

It happened in the Russo-Turkish war that a Russian lieutenant in command of a torpedo-boat forgot to haul out the “safety pin” and the consequence was that though the torpedo reached the target it failed to explode. From what has been said it will be understood that torpedo warfare is not quite so simple as it looks. In time of peace the torpedo is not fitted with its war head, and so for daily purposes a steel dummy head is used, while there is an arrangement that causes it to rise to the surface on completion of their run. To facilitate its recovery, a “Holme’s light” is carried on to the head. This consists of an arrow-headed tin canister pierced with tubes and full of phosphide of calcium, which on contact with the water gives out both a strong light and a strong smell.

This contains the motive power of the torpedo and it comes just behind the explosive chamber. The air is compressed into the compartment by means of air-compressing pumps 224fitted on board ship, and the latest types are tested to a pressure of 1,700 lbs. to the square inch.

Next the air chamber comes the balance, or secret chamber, although the secret is now universally known. Here is contained the mechanism for automatically transmitting to the horizontal rudders the movements necessary for keeping the torpedo at a uniform and pre-arranged depth below the surface during its run. It consists of a hydrostatic valve and a pendulum whose combined movements are transmitted to an air cylinder called a “servo-motor,” placed in the engine room. The hydrostatic valve is kept in its place by a spring that is forced in by the pressure of the water when the torpedo goes below a certain depth to which the valve has previously been adjusted. If the pressure be less than that of the set depth the opposite action takes place. This valve is connected with the servo-motor, which in its turn acts on the horizontal rudders. The pendulum consists of a heavy iron weight curved to correspond with the circular section of the torpedo and suspended by the pivoted steel rods or arms. It swings in a fore and aft direction and is connected by rods to the rudder for a certain distance after the discharge of the torpedo. A controlling gear is provided which keeps the rudders fixed. It will thus be seen that by the combined actions of the hydrostatic valve and the pendulum the Whitehead, after leaving the tube, is brought to the proper depth very rapidly and is held at this depth throughout her run. Both these devices are necessary, as the torpedo has a great tendency to run down an inclined plane at great speed, and this requires to be checked. In addition the balance chamber contains various valves (the stop valve, the charging valve, the starting valve, the delay action valve and the reducing valve) through which the air passes on its way to the engines from the air chamber.

Inside the engine room are the propelling engines and the servo-motor. The engines are of the single-acting three-cylinder Brotherhood type. The compressed air, after leaving the air reservoir, passes through the main pipe to the pressure-reducing valve. In the latest pattern 18 inch Whitehead the indicated horse power is 56. The torpedo is started by means of a trigger which projects a little beyond the casing of the torpedo, and which automatically opens the starting valve when the torpedo is fired, the trigger just before leaving the tube is caught by a catch in the tube which draws it back when the catch releases itself.

This ingenious apparatus was called into existence owing to the fact that the mechanism of the balance chamber was unable, through its feeble power, to work the horizontal rudders of the faster Whiteheads direct. The servo-motor is, then, the air engine from which is derived the power to move the diving rudders. It is only about 4 inches long, but so great is its power that with only half-an-ounce pressure on the slide valve the piston is capable of lifting 180 lbs. It consists of a cylinder, a piston, and a cylindrical slide valve. Its balance mechanism acts on the slide valve of the servo-motor, and this acts on the piston, and the motion of the piston is transmitted to the diving rudders by means of a rod and a system of levers.

Abaft the engine room is the buoyancy chamber which gives the necessary buoyancy to the torpedo: to guard against the collapse of the chamber flat steel rings are fitted into it for support. In the “Tail,” the rearmost compartments of the torpedo, are carried the bevel wheel mechanism, the vertical 226and horizontal rudders and the propellers, and the counter mechanism for adjusting the length of run.

From the foregoing description of the many devices employed to enable the Whitehead to accomplish the tasks for which it is intended, it might be thought that everything that science could imagine has been done to ensure its efficiency. There still, however, remained one great drawback to the efficiency of the torpedo, and this was its deflection from right to left, which was often so serious as to prevent it from striking the object at which it was aimed. The hydrostatic valve and the pendulum were sufficient to keep the torpedo at the required depth without diverging from her true vertical course, but it was apt to swerve from its course in a right or left direction either by reason of the blow it received on striking the water, by dents on its shell, by air leakage, or other causes. An error of only one degree in its course means a lateral error of nearly 50 feet at 800 yards, and it was in order to prevent the deflection of the Whitehead out of the line of fire that the principle of the gyroscope has been applied to the torpedo. In addition to her pair of ordinary vertical rudders, which may be set to any angle up to 20 degrees by means of a clamping screw, the torpedo carries a pair of movable vertical rudders placed in recesses in the vertical fins and controlled by the gyroscope through a servo-motor. The ordinary vertical rudders are usually discarded if the latter are carried.

227

Photos by] [West & Co.

THE FIRING OF A WHITEHEAD TORPEDO.

229In a manifesto issued in July, 1901, the Navy League declared that owing to the lack of prevision no adequate provision for gyroscopes and other “essentials of efficient fighting” had been made. Soon afterwards, in the House of Commons, Mr. Arnold Forster, referring to the condition of the navy, remarked that the gyroscope was an exceedingly complicated and beautiful appliance, which from its nature and mechanism you could not get by sending round the corner. Its manufacture, he said, was a long process, involving considerable skilled labour, but still it had been carried out with unremitting zeal, and a great many vessels were supplied with them, He assured the House that there had been no relaxation in the effort to provide all torpedoes with this necessary and desirable accomplishment.

The working of the gyroscope as applied to the Whitehead torpedo may now be described. In the centre of the lower part of the buoyancy chamber is placed a small heavy-rimmed flywheel or gyroscope about 1¾ lbs. in weight, carefully suspended on gymbals (like a ship’s compass) in a vertical position and transverse to the axis of the torpedo. The apparatus is “set” by winding up a strong spring, and the action of firing the torpedo from the tube releases the spring and causes the gyroscope to spin round at a rate of about 2,200 revolutions a minute. The use of the gyroscope is 230based on the fact that if a wheel be set spinning on its axis with any considerable velocity, it will always tend to revolve in the same place to which it is set spinning. The gyroscope works a servo-motor, which in its turn works a pair of movable vertical rudders, and the slightest deviation from the direction in which the torpedo was originally fired causes the gyroscope to move the rudders and bring back the torpedo to its pre-determined course. Thanks to the hydrostatic valve, the pendulum, and the gyroscope, the Whitehead torpedo is almost certain to hit the object at which it is aimed. In peace manœuvres the Whitehead has often been run absolutely dead straight, with no divergence either up or down, or from right to left, to a distance of 2,000 yards. In 1890 the range of the Whitehead (Mark X R.L.) was officially placed at 800 yards, so the value of the gyroscope is quite evident.

Torpedoes are fired in four ways—

1.

By submerged tubes.

2.

By above-water tubes.

3.

By revolving tubes.

4.

By boat’s “dropping gear.”

The torpedo is blown out of the tube either by compressed air suddenly injected into the rear end, or by an impulse charge of a few ounces of powder, usually cordite. The air pressure varies from 300 to 600 lbs. to the square inch, and the powder charge from 4 oz. to 6½ oz. Submerged tubes are of course tubes below the water-line, and all the most 231recent ships are fitted with these, as their advantages over above-water tubes are universally recognised. After the Chino-Japanese war all governments, when demanding designs for new warships, made it almost a sine qua non that the torpedoes should be discharged from below water. In firing torpedoes from above-water tubes the torpedo is liable to be hit by the enemy, and it is generally considered that if the tube be hit by even a small projectile it must inevitably explode; the submerged tube affords protection both to the men and the weapon, while the torpedo is less deflected on entering the water. The weight of the submerged tube is some 7 tons, 2 tons more than an above-water one. In order to avoid any possibility of the Whitehead inflicting injury on the vessel firing it, and in order that it may be as little deflected as possible, a guiding bar is run out of the tube by means of pneumatic power when the torpedo has been placed in it. The guiding bar holds and guides the torpedo until quite clear of the ship, when by means of a secret apparatus it releases the torpedo at the end simultaneously; without this arrangement the torpedo would be enormously deflected towards the stern directly it began to leave the tube, and would probably strike the ship from which it had just been fired.

Revolving tubes are carried either singly or in pairs on board torpedo-boats and destroyers, and the torpedoes are fired from them by powder impulse only. “Dropping gear” is only used on second-class torpedo boats and picket boats. It 232consists of a pair of clip tongs suspended from pivoted davits; the tongs being opened, the torpedo falls into the water, the engines are set in motion, and it speeds off to do its deadly work. The torpedoes for the English Admiralty are made at the Royal Gun Factory, by Messrs. Greenwood and Batley, of Leeds, and by Mr. Whitehead’s factory at Portland.

Mr. Whitehead has another factory at Fiume, whence he supplies almost all the Great Powers with his torpedoes. In time of war the torpedo would be discharged by an officer in the conning tower; by the aid of a torpedo directory he would make the necessary adjustments and would fire the torpedo down below by pressing his hand on an electric key, thus completing a circuit connected with the firing apparatus in the tube.

A BRITISH DESTROYER.

About the year 1878 a gentleman in holy orders, Mr. Garrett by name, designed a submarine boat, which was built by Messrs. Cochrane, of Liverpool. It was 45 feet long, of the shape of two cones, with a central cylindrical portion. This vessel, to which the name of Resurgam was given, was tried in the Birkenhead Float in 1879. It descended by means of pistons which varied the displacement of the boat by being drawn in and pushed out, as well as by central rudders which steered it up and down. Compressed-air tanks were provided, and chemicals were stored to purify the air after use.

Soon after a larger boat was constructed in which steam replaced manual labour as the motive power; when about to sink the chimney was removed and an air-tight stopper fitted on the opening to the up-take; the furnace mouths were similarly closed by doors, like those of a gas retort, and the boat sank. Power was supplied on Lamm’s system by the hot water in the boiler. After a number of 234experiments she was finally lost off the Welsh coast.

The attention of Mr. Thorsten Nordenfelt (the inventor of the gun which bears his name) was directed to Mr. Garrett’s design, and the result was that he decided to build a submarine vessel himself. He acknowledged that the negative experience gained during the trials of the Garrett boat had been of advantage to him in avoiding the faults which made that boat unsuccessful.

Mr. Nordenfelt’s first submarine boat was built at Stockholm, and was tried in the Sound of Landskrova, in Sweden, in September, 1885, in the presence of delegates from most of the leading Governments.

Its dimensions and details were as follows: Length 64 feet, beam 9 feet (over sponsons 12 feet), draught 11 feet, displacement 60 tons; speed on measured mile 9 knots; distance travelled without re-coaling 150 miles; depth to which safe descent was possible, about 50 feet. Engines, surface condensing compound type, with two cylinders and cranks at 90°; at pressure of 100 lbs. to square inch, indicating 100 horse-power. Boiler of ordinary marine return tube type, having one furnace, and about 200 square feet of heating surface; two hot-water cisterns, rhomboidal in body with spherical ends. The boilers and cisterns contained about eight tons of water. Both boilers and cisterns were made for a working pressure of 150 lbs. to square inch. One fish torpedo, 14 feet long, was carried outside on the bow and discharged mechanically. The sinking apparatus consisted of two vertical propellers driven by a 6–h.p. double-cylinder engine, and placed in sponsons on each side of the boat. The revolution of these 235caused the boat to descend horizontally when its buoyancy had been sufficiently diminished. There was one cold-water tank in the centre of boat, holding about four tons of water, for regulating buoyancy. This tank was used as coal bunker when doing long surface runs. In the stern was a four-bladed propeller 5 feet in diameter, and the rudder for port and starboard steering was placed aft of this propeller.

In the bow on either side were balanced rudders on one and the same axle, always maintained in the horizontal position. The crew consisted of three men, and when the boat was closed up there was sufficient air to supply three men for six hours without causing discomfort, and this was not supplemented by any storage of compressed air or restorative chemicals. The depth below the surface at which the boat travelled could be varied in two ways; either by varying the speed of the vertical propellers, or by reducing the speed of the engines driving them by an automatic valve controlling the steam supply. On the surface the boat was driven by working the boiler in the usual manner, and the temperature of the water in the cisterns was kept up to a degree corresponding to a steam pressure of 150 lbs. When it was desired to descend, the ashpit and fire door were closed, as also the funnel inside the boat, and the vertical propellers were started. For sub-surface travelling there was available, as propelling power, the steam given off by the heated water (about eight tons), and this was found sufficient for a distance of 14 knots; on one occasion, when the boat was opened up, there was still over 20 lbs. pressure in the boiler.

Mr. Nordenfelt recognised that for the defence of open coasts and for operations where it might be necessary to keep the sea for days together without being able to seek the shelter of inlets or the mouths of rivers, 236other and larger proportions than those of his first 64 foot-boat would be desirable.

He accordingly constructed a boat on such larger lines, the details of which are as follows:—

Length 100 feet, beam 12 feet, displacement 160 tons, speed on measured mile 12 knots, distance travelled without re-coaling 900 miles, depth to which descent could safely be made, about 50 feet. Engines, surface condensing compound type, with two cylinders, and cranks at 90°, and at a pressure of 100 lbs. of steam indicating 250 h.p. Boiler, of the ordinary marine return tube type, having two furnaces; about 750 square feet of heating surface. Hot-water cistern, rhomboidal in body with spherical ends. Both boiler and cistern made for a working pressure of 150 lbs. per square inch. Armament, two fish torpedoes, 14 feet long, carried outside on the bow and discharged mechanically. Two Nordenfelt quick-firing machine guns consisting of 1–inch calibre. Sinking apparatus, two vertical propellers, driven by two engines, each indicating 6 h.p.; these propellers were placed in the fore and aft line. This was an improvement on the earlier boat whose screws were fitted in side sponsons. The mere arrest of these propellers sufficed to bring the boat to the surface, as it had a reserve buoyancy. Bow fins, whose action was both automatic and controllable, maintained the boat in the horizontal position. The main propeller was placed abaft the rudder. Two main cold-water cisterns placed at each end, and containing 15 tons of water each, also one in centre of boat for regulating buoyancy containing 7 tons; coal bunkers on the side of boiler; 8 tons of coal carried at the side of hot-water cistern and in middle of boat. Crew, three men in a watch: two watches carried. With coal in the bunkers only, this boat could keep the sea for five days or more. No attempt was made to purify the air when submerged. When descending, the boat was perfectly horizontal, and was invariably kept so when moving 237under water by means of the bow rudders operated by a plumb weight.

“NORDENFELT II.” RUNNING AWASH.

Nordenfelt II. had two distinct conditions of existence as a torpedo craft—that of a surface boat and a submarine one. The sinking operations were as follows: the furnaces were hermetically closed, upon which combustion was soon brought to an end. The piece of funnel connecting the boiler with the outward portion was then removed and the doors placed in position. Whilst these changes were being effected, water was allowed to run into the ballast tanks to reduce the buoyancy to its proper limit, and this arrived at, nothing remained but to close up the conning tower and to set in motion the vertically acting screws to place the boat quite out of sight.

In a paper which he read before the Royal United Service Institution, on February 5, 1886, Major-General Sir Andrew Clarke in the chair, Mr. Nordenfelt after mentioning previous under-water vessels, gave his views as to the reason of their failure.

238First of all he said they were always built too small and too weak. The longest was 45 feet, and their small dimensions and weak plates made them useless in bad weather and dangerous for submersion; the small air space available forced the crew to use chemical means to obtain pure air. Secondly, they were never made for firing a fish torpedo; consequently they had to endeavour to fix a mine to the bottom of a vessel, a feat which Mr. Nordenfelt considered impracticable, owing to the risk of contact with the vessel, which, especially if it were pitching or moving, might easily destroy the boat. Thirdly, in all the early boats, the mines were charged with only black powder, the effect of which was less destructive than that of the gun-cotton or dynamite in the fish torpedoes. The effect of the explosion, again, against a wooden ship, was nothing like as serious as against the thin bottom plates of an ironclad. Fourthly, all the boats hitherto in use were propelled by hand power; this gave too much hard work to the crew, who could not take the boat any distance on the surface previous to the actual attack, and made it quite impossible for it to face any rough weather. In the Nordenfelt boat the use of steam diminished the number of men, and they had so little to do when below the surface that the temperature, lower than in modern stokeholes, was no detriment. Fifthly, all previous boats had most unreliable means of descending and ascending. The descent by steering downwards in the American boats of the Civil War period was quite as dangerous as the attempts before and after that time to lower and raise the boats and to keep them steady at any desired depth, by means of increasing and decreasing the weight of the boats by more or less water-ballast or by altering their displacement.

None of these boats used the principle which Mr. Nordenfelt applied to pull his boat down by mechanical means, while relying upon its always retained buoyancy for rising; so that if the 239mechanical apparatus failed the boat rose at once to the surface. Again, they did not have the tendency to steadiness given by the two forces of constant pulling down by the vertical screws, acting all the time, whether still or moving, against the pulling upwards caused by the buoyancy.

Mr. Nordenfelt considered it most dangerous to rely upon a detachable weight in case of emergency, as the apparatus for detaching it would be always liable to fail. He confessed that he could not imagine how the longitudinal instability of a submerged boat could possibly have been satisfactorily controlled by any of the means applied to the previous boats. Even Goubet’s system of moving water or weights fore and aft inside the boat must act more slowly and cause more diving and oscillation than his rudders which always remained in the horizontal, and thus controlled the slightest tendency of the boat to get out of the longitudinally horizontal position. He considered it absolutely essential to keep the boat horizontal when moving, as he believed that any inclination downwards with the impetus of a heavy boat would almost to a certainty carry the boat below its safe depth before it could be effectually counteracted by shifting weights.

The reason which led Mr. Nordenfelt to construct his submarine boats was the almost insuperable difficulty in carrying the Whitehead and Schwarzkopf fish torpedoes with any degree of certainty up to the short distance at which they could be considered 240infallibly effective. It seemed to him that a much greater chance would be given for carrying the torpedoes within striking distance, if, instead of trying to rush the distance by many boats, all the time exposed to the destructive fire from machine guns, he could carry the torpedo secretly up to this distance without the probability of being seen at all, and without any probability of being struck by the enemy’s shot even if seen.

The tactics to be adopted by his submarines in action were thus laid down by Mr. Nordenfelt. Out of sight of the enemy the vessel ran on the surface with its cupola and about three feet of its turtle back out of water, but by forced draught, blowing out its smoke under the surface. When she arrived within such distance of the enemy that she might be discovered, she descended into the water so far that the cupola alone appeared above the waves, this was done by taking in water into the cold-water tanks sufficient to reduce the floatability to what the horizontal screws were capable of overpowering. The “reduced floatability” was never done away with, but the descent from the “awash” position was effected by starting the vertical screws, thus overcoming mechanically the buoyancy of the boat, which was pulled down to a less or greater depth depending upon the speed given to the screws.

The three main points in Mr. Nordenfelt’s system on which he laid special stress were these:

1. That by using water as the means of storing 241up energy he was in possession of a reservoir which could never get out of order, and which could be replaced at any hour in any part of the world, and without any extraneous assistance from shore or other ships. The reason of all others which at once decided him to adopt the hot-water system was the enormous factor of safety obtained by his being able to blow out, by steam pressure without the use of machinery, large weights of water which would lighten the boat and counteract any leak likely to occur. Mr. Nordenfelt had little faith in electricity as a motive power, which is not surprising considering the accumulators then in use.

2. The submerging the boat by mechanical means: Mr. Nordenfelt was convinced that previous attempts had proved unsuccessful, mainly because either they depended upon varying the displacement of the boat by taking in water to submerge her and to regulate the depth at which they desired to operate, or they descended by steering downwards. His objection to the first-named method of descending, by taking in water and thus increasing the specific gravity of the boat, was that practically there was no difference in the specific gravity of water on the surface or at 50 feet depth; thus when the boat had lost its buoyancy at the surface it had also no buoyancy at any given depth, and the risk was thus very great of suddenly descending beyond a safe depth.

3. The horizontal position Mr. Nordenfelt found to be a sine qua non for a submarine boat.

242When Mr. Nordenfelt built his boats electric accumulators were very much inferior to those of to-day; no designer of an under-water vessel would think nowadays of using the steam given off by heated water for under-water propulsion. As to his theory that a submarine boat must always descend on an even keel, this has since proved to be entirely erroneous; the modern diving torpedo boat goes down at an angle and is brought to the horizontal position at the required depth either automatically or by hand-worked mechanism.

“NORDENFELT II.” AT CONSTANTINOPLE.

During her trials Nordenfelt I. hardly did herself justice, but nevertheless in the beginning of 1886, she was bought by the Greek Government, and in April, 1886, trials took place in the Bay of Salamis, when Mr. Nordenfelt’s agent carried out the various conditions imposed.

Shortly after the first boat had been bought by Greece, Turkey ordered two submarine boats (Nordenfelt II. and III.) from the inventor. Both boats were sent to Turkey in sections, but only 243one was assembled and tested. In 1887 it underwent trials at Constantinople, which were witnessed by the Sultan himself, who expressed himself highly satisfied with the performance of the boat.

Mr. Nordenfelt’s fourth vessel was built by the Barrow Ship Building Company, the machinery being supplied by Messrs. Plenty & Sons, Newbury.

The principal dimensions were: Length, 125 feet; diameter, 12 feet; displacement fully immersed, 245 tons; in light surface condition, 160 tons. The engines turning the main propeller were especially designed for using steam at varying pressures, and indicated 1,000 h.p. when working with steam at a pressure of 150 lbs. At that power her estimated speed was 15 knots. Submerged, her speed was 5 knots. Fourteen auxiliary engines were carried for driving air circulating and feed pumps for steering and sinking. In the middle was the entrance to the stokehole through a scuttle 4 feet in diameter. Fore and aft of this scuttle were two funnels, and about 30 feet from the stem and stern of the boat were the conning towers, 2 feet high and of the same diameter. They were of 1–inch steel and were considered perfectly impervious to any shot which in warfare would ever be directed against them. In the forward tower were placed at the hands of a commander means of controlling every motion of the vessel. The boat was divided into five compartments: (1) The torpedo chamber containing two tubes; (2) Quarters for four officers; (3) The boiler room; (4) The engine room; (5) The men’s quarters, cooking galley, stoves, &c. The crew consisted of nine men all told; 35 tons of cold water were carried in the tanks; and 27 tons of hot water in the boilers. These latter were expected to store sufficient heat for a run of 20 knots under water. The coal bunkers held stores of coal which, at a speed of 8–9 knots, 244could drive the boat a distance of 1,000 miles. Should it be necessary to transport her to a greater distance, her water tanks could be filled with coal, enabling her to steam 2,500 miles. Two vertical propellers, one forward and one aft, kept the vessel submerged and overcame the retained force of buoyancy (500 lbs.). The boat was lighted by candles; without any special provision of air it contained enough for a crew of nine men for about six hours.

Nordenfelt IV. made her passage from Barrow-in-Furness to Southampton through some heavy seas, and during the voyage she was tested by her commander in every wind and every condition of wave and sea, and she proved that she was capable of being manœuvred in any weather, however bad.

On the 26th of May, 1887, she underwent her first examination before a body of critics, composed for the most part of skilled, experienced scientific officers of both branches of the Service. She was first run with nothing above water save the two conning towers and a few inches of her back, at the rate of about six miles an hour. The time occupied by the trial in the awash condition was 1½ hours, and at the end of the time a sufficiency of steam was stored up in the boilers to drive her a distance of about 24 miles. On the pumps being put in motion, some 20 tons of water were pumped out in eight minutes. The funnels were then fixed, the fires relighted, and the Nordenfelt was soon making 15 knots on the surface.

On December 19, 1887, a semi-official trial of the 245Nordenfelt took place, when she manœuvred successfully both on the surface and submerged, but no attempt was made to fire the torpedoes.

“The neutral tint she was painted,” wrote the special correspondent of the Engineer, “rendered her almost invisible at the distance of even a few hundred yards, while as a target she presented nothing to attack save the two conning towers and a few inches of her turtle back, and as these were of great strength and rendered still more invulnerable by their shape, it is all but certain that no gun carried on any other torpedo boat would ever do her the slightest injury, while she at the same time possesses the enormous advantage of being able to attack without smoke, or fire, or noise. Indeed, given these advantages of a minimum of target and a total absence of noise and smoke, we fail to see what more could be desired in any vessel of war.”

In a leading article in the issue of December 23, 1887, the Engineer said: “We may—we hope we shall—have quite a little fleet of Nordenfelts when Christmas comes round again. When once Columbus had shown the way to America, the water was freely traversed.”

The correspondent of the Army and Navy Gazette said that the Nordenfelt had a great and assured future before it, that with a gun or two on her turtle back, and working as an above-water torpedo boat, she certainly possessed many advantages over the ordinary first-class torpedo boat, and that 246her powers of submersing should make her the more valuable craft, the cost being the same. “It is not likely or advisable that a number of such boats should be at once built, but the country which can give £100,000 for a Brennan torpedo would do well to further, in every possible manner, trials and experiments with a boat so simple, yet possessing such possibilities in the future.”

It will be very naturally wondered why, in spite of these favourable opinions, the Nordenfelt was so soon forgotten. The answer may be found in some recent issues of the Engineer. This journal published, during the years 1886–1888, all the information that was suffered to leak out concerning the experiments with the Nordenfelt boats. In 1901, by the courtesy of Mr. P. W. D’Alton (now Chief Engineer to the Central London Railway), who was associated with Mr. Garrett and Mr. Nordenfelt, it was enabled to state much more than had hitherto been made public.

Taking first the Turkish boat, it was easily proved that as a boat working near the surface, but not wholly submerged, she was fast, manageable, and a very dangerous foe because of the difficulty of finding her, and the very small mark which she offered.

As a submarine boat, she was entirely a failure.

“She had the fault of all submarine boats, viz., a total lack of longitudinal stability. All submarines are practically devoid of weight when under water. The Nordenfelt, for example, 247weighed by a couple of hundredweights less than nothing when submerged, and had to be kept down by screw-propellers provided for the purpose. The Turkish boat was submerged by admitting water to tanks aided by horizontal propellers, and raised by blowing the ballast out again and reversing the propellers. Nothing could be imagined more unstable than this Turkish boat. The moment she left the horizontal position the water in her boiler and the tanks surged forward and backwards and increased the angle of inclination. She was perpetually working up and down like a scale beam, and no human vigilance could keep her on an even keel for half a minute at a time. Once, and we believe only once, she fired a torpedo with the result that she as nearly as possible stood up vertically on her tail and proceeded to plunge to the bottom stern first. On another occasion all hands were nearly lost. Mr. Garrett was in the little conning tower. The boat was being slowly submerged—an operation of the utmost delicacy—before a committee of Ottoman officers, when a boat came alongside without warning. Her wash sent a considerable quantity of water down the conning tower, the lid of which was not closed, and the submarine boat instantly began to sink like a stone. Fortunately Mr. Garrett got the lid closed just in time, and Mr. Lawrie, the engineer, without waiting for orders, blew some water ballast out. It was an exceedingly narrow escape. In spite of these difficulties, the Ottoman officers were so impressed that the Turkish Government bought the boat. It goes without saying that it was only with the greatest difficulty the price was extracted from the Sultan’s treasury. But no use whatever has been made of her, and she lies rotting away in Constantinople, unless, indeed, she has found her way piecemeal to the marine-store dealers. A paramount difficulty in the way of utilising her was that no engineers could be got to serve in her. If men were appointed they promptly deserted. Indeed, it may be taken as certain that not one man in five hundred is fit to take charge of any submarine boat.”

248The Engineer is not less severe on Nordenfelt IV.

“To all intents and purposes the Nordenfelt was a total failure as a submarine boat. She began badly. As soon as she was launched from the stocks at Barrow it was seen that a mistake had been made in calculating weight, as she was down by the stern, drawing 9 feet aft and about 4 feet 6 inches forward. This would have been partially rectified by her torpedoes, but she never had one on board. Extra ballast had to be put in forward, and it was always held, rightly or wrongly, that this made it all the more difficult to keep her on an even keel, when submerged. The extra weight carried militated greatly against her speed as a surface boat. Another mistake was that the water ballast tanks were too large, or perhaps it would be more correct to say that they were not sufficiently subdivided. When she was in just the proper condition to be manœuvred by her horizontal propellers the ballast tanks were only about three-quarters full, and the water being left free surges backwards and forwards in them. It must not be forgotten, however, that ample tank capacity was necessary because the quantity of ballast needed, depended on the number of tons of coal and stores on board. Subdivision would, however, have prevented the surging of the ballast water. If, for example, the boat was moving forward or on an even keel at, say, two knots, if a greaser walked forward a couple of feet in his engine room her head would go down a little. Then the water surged forward in the tanks, and she would proceed to plunge, unless checked, and in shallow water would touch the bottom, as she did on the Mother Bank in the Solent, or if in deep water she would run down until the pressure of water collapsed her hull. No one who has not been down in a submarine can realise their extraordinary crankness. The Nordenfelt was always rising or falling, and required the greatest care in handling.”

PART III — APPENDIX I BRITISH SUBMARINES — APPENDIX II THE AMERICAN SUBMARINES — APPENDIX III FRANCE AND HER SUBMARINES — PART I. French Submarines Proper, i.e. those Dependent entirely on Electricity for Motive Power. — PART II. French “Submersibles,” i.e. , those Fitted with Two Sources of Motive Power, One for Surface, and One for Sub-surface Propulsion. — The New Submarines. — APPENDIX IV SUBMARINES OLD AND NEW — APPENDIX V THE “LAKE” SUBMARINES — A SHORT BIBLIOGRAPHY OF SUBMARINE WARFARE — France. — Belgium. — Germany. — Great Britain. — United States.

“The tendency of the Admiralty is to follow and not to lead other great nations. I hope that one of these days we shall not follow just a little too late.”—W. E. Arnold Forster.

Probably the first occasion of recent years that mention was made of submarine boats in Parliament was subsequent to the trial of the Nautilus, a diving boat invented by Messrs. Campbell and Ash, during a trial of which several exalted personages nearly lost their lives. Lord George Hamilton described the incident to the House of Commons, and created some amusement by his relation, and there is no reason to believe that the submarine was looked upon by members other than as an erratic toy to whose mercy no wise man would entrust his person.

Mr. Nordenfelt built several submarine boats, one of which was bought by the Turkish and another by the Greek Government, but though in several quarters the advisability of the Admiralty purchasing one or more Nordenfelt boats was suggested, nothing came of it.

Mr. Edmund Robertson, K.C., dealing in the Nineteenth Century, of May, 1900, with the question of submarine boats 250remarked that five or six years ago he knew the opinion of the technical advisers of the Admiralty, and that they did not see their way to recommend the Admiralty or the Government to make any provision for submarine vessels of war.

Since that time, however, very few weeks passed but some writer took up the cudgels on behalf of the submarine and urged the Admiralty to consider the advisability of constructing boats.

The keen interest taken in France in under-water warfare was reflected to a certain extent in this country, and on the 9th of February, 1899, Mr. Charles McLaren addressed a question to the First Lord of the Admiralty in which he referred to the “extraordinary value” assigned by the French minister to the new vessels, and asked “whether the British Admiralty attached any importance to these experiments, or had any intention of adding any such vessels to the British Navy?” Viscount Goschen’s answer was: “It would be inexpedient at this stage for me to express the opinion of the Admiralty as to the reported performances of the new submarine boats. With reference to any action which the Board of Admiralty may take, I am not at present prepared to make any statement.”

The position of the Admiralty in the early part of 1900 may be ascertained from an answer given by Viscount Goschen to a question put by Captain Norton on the 6th of April. “Close attention has been given by the Admiralty to the subject of submarine boats. The submarine boat, even if the practical difficulties attending its use can be overcome, would seem so far as the immediate future is concerned to be eventually a weapon for maritime Powers on the defensive, and it is natural that those nations which anticipate holding that position should endeavour to develop it. The question of the best way of meeting its attack is receiving much consideration, and it is in this direction that practical suggestions should be valuable. It seems certain that the reply to this weapon must be 251looked for in other directions than in building submarine boats ourselves, for it is clear that one submarine boat cannot fight another.” In the debate on the Ship-building vote the First Lord made a further statement. “The importance of submarine boats had been pointed out, and it had been said that it was their duty to make experiments. The nations which were likely to have the greatest use for these boats might gain from their experiment more than others. He did not propose to make publicly any declaration as to these boats. Of course he did not wish to encourage or discourage other nations, but he must ask the Committee to excuse him going into the question.”

In the same debate Mr. Arnold Forster, who a few months later was appointed Parliamentary and Financial Secretary to the Admiralty, made some remarks on this “somewhat cryptic utterance,” as Mr. Robertson called it. “If in the matter of submarine boats the First Lord of the Admiralty had said that in the opinion of the engineering advisers of the Admiralty to design and work a submarine boat, was so remote of accomplishment that there was no reasonable probability of being able to work it, he would have been slow to contradict him; but that was not the line taken by him. The First Lord said that the Admiralty had not designed a submarine boat, and did not propose to design one, because such a boat would be the weapon of an inferior power. But if it could be produced as a working article, the Power which possessed such an article would no longer be an inferior but a superior Power. We, above all nations, were exposed to the attacks of this engine. He submitted that it was not a satisfactory thing to stand by and allow others to carry out this problem without making some attempt to solve it for ourselves. He admitted the tendency of the Admiralty to follow and not to lead other great nations. He hoped that one of these days we should not follow just a little too late. If we had been compelled to learn our lesson with regard to ironclads, breechloaders, and armoured 252cruisers in the face of an active enemy we should have experienced the same lessons which the Austrian army underwent in 1866 when they were compelled to learn the merits of the breechloader by studying it on the field of battle. There was room for improvement in the attitude we had taken up in regard to submarine navigation.”

During the short session of December, 1900, after the General Election, the Admiralty was again questioned, and the reply was that the “attention of the Admiralty had been called to the additional provision for submarine boats in the French naval programme, and a statement will be made when the estimates are laid before the House.” Between this date and the introduction of the Navy Estimates endless rumours regarding the position the Admiralty would take as to the submarine boat question found their way into the daily press. While, on the one hand, it was “confidently asserted” that, the Government were making secret trials with all kinds of wonderful craft, on the other hand it was stated “on the highest authority” that the Lords of the Admiralty had no intention of altering their minds as to the advisability of taking any action whatever in the matter.

The statement of the First Lord of the Admiralty explanatory of the Navy Estimates for 1901–2, published on the 1st of March, 1901, contained the following item:—

“Five submarine vessels of the type invented by Mr. Holland have been ordered, the first of which should be delivered next autumn. What the future value of these boats may be in naval warfare can only be a matter of conjecture. The experiments with these boats will assist the Admiralty in assessing their true value. The question of their employment must be studied, and all developments in their mechanism carefully watched by this country.”

In the discussion on the Navy (Supplementary) Estimates on March 4, 1901, Mr. Flynn asked whether the policy of the Admiralty in constructing battleships “as to the strength of 253which they knew nothing,” when other nations were turning their attention to submarine vessels, was quite wise. This same notion as to the advisability of going in for small submarines instead of big battleships is to be found in a speech by Mr. O’Shee on March 23rd, who said that if these boats were able to do half what was claimed for them, then the present gigantic expenditure for naval construction was entirely uncalled for. A submarine boat could be built for £25,000, and manned by ten men, and if it were true they were able to combat the big ships which the Government were building, those ships would be absolutely useless except for carrying the submarine boats to places where they were to work. If submarines were all that was claimed for them it would render unnecessary the £9,000,000 which was then being expended on new battleships.

Mr. Arnold Forster in the House on March 18, 1901, said:—

“I will not say much about submarine vessels, but I will say that I am glad that the Admiralty, under the advice of Lord Goschen, took the view that it was wise not to be found unprepared in regard to this matter. We have a great amount of information about these boats, but we do not attach an exaggerated value to it. But we believe that an ounce of practice is worth a ton of theory, and that when we get officers and men to see these boats, they will learn more from them than from many reports which come from foreign countries. One thing stands between the submarine boat and efficiency, and that is the motor by which it is propelled. But there is no disguising the fact that if you can add speed to the other qualities of the submarine boat, it might in certain circumstances become a very formidable vessel. We are comforted by the judgment of the United States and Germany, which is hostile to these inventions, which I confess I desire shall never prosper.—(Commander Young, M.P., said that if the Admiralty built any submarine boats, all he would ask would be that he might not be ordered to serve on one.)—But 254we cannot regard our position as the same as that of other nations. The United States to-morrow, if a perfect submarine were invented, would not only have more secure protection for their harbours. In Germany the harbours are no doubt carefully protected now. But we live in the narrow waters of the Channel, and our problem is not precisely that of any other nation, and I am glad that Lord Goschen did give this instruction to the Board which has now borne fruit in the determination to put this experiment into execution, and we shall see the result of it during the next financial year.”

Mr. Edmund Robertson, K.C., in the debate on the Navy Estimates on March 21, 1901, remarked that as the building of the submarine boats was only a matter of experiment, he thought it might have been introduced upon a somewhat smaller scale. If its value was purely conjectural, he should have said that one boat would have been enough to experiment with. Two should have been quite enough, but we generally did things on a large scale, and after having refused to say one word for many years about submarine boats, we now found the Admiralty launching out into quite a little fleet of them. “What,” asked Mr. Robertson, “had become of the control of the House of Commons? What had become of that control when the Admiralty of the day, having refused to tell them their policy, come forward shortly afterwards and say they will build five of these boats?” He could not help protesting against this, for a new departure of this nature ought not to have been made except with the sanction of the House, and at the very least it ought not to have been done without being divulged to the House.

It may be noted that Mr. Arnold Forster, speaking in the House of Commons in January, 1902, explained that when the decision to construct submarine boats was arrived at, only one type was available for purchase, that the right to build boats of this type was in the hands of one firm, and that it was therefore necessary to entrust the work to that firm.

255The first British Submarines.—The first five British submarines are almost identically the same as the six Holland boats ordered by the U.S. Congress on June 7, 1900.

They are cigar-shaped vessels 63 feet 4 inches long; beam, 11 feet 9 inches; and displacement submerged, 120 tons. The plating and frames are of steel and of sufficient size and thickness to withstand the pressure of depths not exceeding 100 feet. The bulkheads are located to provide safety in event of collision, and to stiffen the hull as a whole; decks are provided throughout the whole length of the interior of the vessel, combined with beams and floors to carry the weight of machinery; the tanks are of steel, and they are braced, stiffened, rivetted, and caulked absolutely tight, and man-holes are located to allow access to the interior of all tanks.

When the vessel is in light condition for surface running, an above-water deck, 31 feet long, is available, and there are means of stowing anchor and lines and of affording mooring facilities to the vessel. Rudders of steel plates are provided, and they are supported by skegs at the stern of the vessel. The conning tower is of armoured steel; its outside diameter is 32 inches, and its minimum thickness 4 inches; it is provided with ports for observation by the steersman. In the construction of the vessel care has been taken that all portions of the exterior of the hull shall be free from projections of a kind that might be entangled by ropes or other obstacles when submerged, and the lines of the vessels have been designed so that there shall be a minimum of resistance when it is running at the surface.

Propulsion.—On the surface the vessel is propelled by a 160 h.p., single screw, four-cylinder, Otto gasoline engine, capable of giving a speed of 8 knots, while when submerged it is driven through the water by a 70 h.p. electric waterproof motor giving a speed of 7 knots. The radius of action at the surface is about 400 knots, while the storage batteries have sufficient capacity for a speed of 7 knots on a four hours’ 256submerged run. Gearing is provided for the charging of the batteries by using the motor as a dynamo, and running it from the gasoline engine when at the surface, and from connecting the propeller either to the engine or the motor; these operations are effected through clutches. Switchboards and switches are provided for the safe and efficient distribution of the electric current throughout the vessel. The lighting system consists of portable incandescent electric lamps, together with several ports and openings in the hull to admit the outside light. The hull is circular, in cross sections, and is divided by the watertight bulkheads into three separate compartments. There is also a thorough subdivision of the bottom and every precaution is taken to localise any injury to the hull which might threaten the buoyancy.

In the forward compartment is one torpedo expulsion tube, located at the extreme forward end of the vessel, opening outward two feet below the light water-line. The tube is placed with its muzzle in the nose of the craft and its axis inclined somewhat to the longitudinal axis of the vessel. The muzzle of the tube is closed by a watertight door, and this can be lifted from within for the discharge of the five Whitehead torpedoes, each 11 feet 8 inches long, which are carried in the interior. One torpedo is placed in the tube, and the other four are placed side by side above the storage batteries. When the first torpedo is fired a sufficient amount of water to compensate for the loss of weight is automatically and almost instantaneously admitted into the tube, causing only a slight change of time for a few seconds. Such compensation is necessary, as the submarine boat is lighter than the amount of water it displaces and any alteration in its weight tends to send it up to the surface or down towards the bottom. When the second torpedo is placed in the tube the water is run into a special torpedo compensating tank; of these tanks there are four, and they are filled as each torpedo is fired. When the last torpedo has been ejected the expulsion tube is filled with water and is kept thus until the end of the run.

257Besides the torpedo tube there is in the forward compartment a series of air flasks, a gasoline tank of 850 gallons capacity, and a trimming tank.

The central compartment contains in its double bottom the main ballast tanks and a circular compensating tank placed between the two sets of batteries. Above the double bottom and below the axis of the vessel are located the storage batteries, and above these are carried the four torpedoes, which are 45 centimetres in diameter and 11 feet 8 inches in length. In the same compartment are a series of air flasks in which air at 2,000 lbs. to the square inch pressure is stored for the purpose of keeping pure the living spaces of the crew.^[9]

In the rear compartment is the four-cylinder gasoline engine, which is rated at from 160 to 190 actual horse-power, and at from 320 to 390 revolutions per minute. Its net weight is 1,300 lbs., its length over all is 9 feet 7 inches, and its total height above the crank-shaft centre is 5 feet 6 inches. In these engines, which gave satisfaction in the first Holland boat, the distribution of the cranks and the timing of the valves and igniters are so arranged that the operations in the four-cylinders alternate, so that while one is at the expansion stroke the other three are at the suction, compression, and exhaust strokes respectively. By this arrangement the engine is perfectly balanced and vibration is reduced to a minimum.

Submersion.—The first operation to be performed when it is desired to submerge the vessel is the admission of water into her ballast tanks. When these are full she runs “awash” with her conning tower alone above the waves.

In order to completely submerge the boat she is steered below the surface by means of her pair of horizontal rudders at the stern. When at the required depth (normally from 20 to 30 feet) she is brought up on an even keel by the 258inclination of the horizontal rudders, which may be controlled automatically (by some such arrangement as is found in the Whitehead torpedo) or by hand. All modern submarine craft go under at an angle, and are steered below the waves by rudders: the principle of submersion on an even keel by down-haul propellers, advocated by Mr. Nordenfelt, has been abandoned by all latter-day designers, as has also the submersion of the drawing in of cylinders adopted in the Campbell-Ash boat.

When running submerged the submarine is lighter than her displacement, and is only kept under by her horizontal rudders, which, of course, only act when she is moving.

The great drawback to all under-water craft has been their lack of longitudinal stability, for they have a tendency to rise or sink at the slightest provocation. In our account of the Nordenfelt boats this disagreeable quality is illustrated. In order to keep the vessel at a regular depth recourse must be had to the horizontal rudders and to the two trimming tanks and the one circular compensating tank carried.

In a general way it will probably be found possible to keep the boat on an even keel by means of her rudders, but if she shows any decided tendency either to dive to the bottom or to rise to the surface or to heel over to one side water may be admitted into the above-mentioned tanks, and the admission may be effected either automatically or by hand. A hydrostatic valve will prevent the vessel passing the safe limit of depth.

Air Supply and Ventilation.—Compressed air is stored aboard the vessel with means of allowing a supply of air into the interior of the vessel. Ventilators are provided for the circulation of outside air throughout the vessel; the gasoline vapours from the engines and all noxious gases are carefully excluded by suitable devices, while safety valves are provided to prevent the pressure to the vessel from exceeding that of the atmosphere.

259Pumps and Pumping.—All tanks and compartments are connected with the pumps, the valves are located to allow of quick manipulation, and pumps with independent means of operation are furnished in duplicate. The tanks can also be emptied by flowing out.

Navigating Apparatus.—In communication with the interior of the vessel there are bells and speaking tubes, while there are provided gauges, indices, and clinometers for indicating pressure, depth, positions, quantities, and weights.

Two compasses are carried, each compensated and adjusted. It is said that the first of the British submarines exhibited certain defects in its compasses, which it was thought were due to the steel conning tower. This was replaced by a brass construction, and on being tested the compasses acted more satisfactorily. After a few trials a new steering-wheel was fixed in the boat close to the conning tower, which could be worked from above and below alike.

The first British submarine was launched on November 2, 1901, at Barrow without any ceremony, although representatives of the Admiralty were present. The trials were placed under the direction of Captain R. H. S. Bacon, D.S.O.

Before launching “No. 1” was by means of a floating dock placed on the gridiron. A crew of six men were put on board, and she was then hermetically sealed for three hours, air being supplied by compressed air cylinders. The trial was quite successful, and the men suffered no inconvenience. On her first “sea trial” “No. 1” started from the floating dock and proceeded along the Devonshire and Buccleuch docks and back to her moorings. On subsequent trials she attained a surface speed of 10 knots.

The first submersion trials of “No. 1” were carried out on February 5, 1902. She went under water with some officers of the Hazard t.g.b., the mother ship to the submarines (Captain R. H. S. Bacon, D.S.O.) on board, and most satisfactory results were obtained. Her appliances for the 260purification of the air were used to maintain atmospheric conditions without any need of her cylinders of compressed air being requisitioned. The first deep sea trials of “No. 1” took place at the beginning of April last in the Irish Sea. The submerging was accomplished in less than six seconds. From the “awash” conditions she suddenly disappeared and then came again into sight some yards’ distant with great rapidity and ease, and the diving was continued at intervals for several hours at a time without any perceptible hitch.^[10]

Submarine “No. 2” was launched on February 21, 1902. Certain alterations were made in her construction, rendered advisable by defects which had been discovered during the testing of “No. 1.” “No. 3” took the water on May 9th, and “No. 4” on May 23 last.

During April last No. 42 t.b. was commissioned at Portsmouth as tender to the Hazard t.g.b., and was sent to Barrow for a series of experiments with the submarines.

The Navy Estimates for 1902–1903 provided for four further submarines, which Mr. Arnold Forster said would be an improvement on those already constructed at Barrow. The Admiralty, he added, proposed to continue the process of adding submarines to our fleet. Details of the new boats are not obtainable.

“The Submarine Boat is a small ship on the model of the Whitehead, subject to none of its limitations, improving on all its special qualities, excepting speed, for which it substitutes incomparably greater endurance. It is not, like other small vessels, compelled to select for its antagonist a vessel of about its own or inferior power; the larger and more powerful its mark the better its opportunity.”—Mr. J. P. Holland.

“In my judgment, as a constructor of these boats (the new Hollands for the United States Government), and from my long experience in designing and constructing war vessels for the Government, and as the constructor of the original Holland, I have no doubt whatever of the endurance, habitability, durability, and reliability of these boats.

“No type of boat in the navy has received such crucial tests as the Holland. The submarine boat to-day is further advanced in its development than any type of naval vessels that I am aware of. I desire to say that in my opinion the Holland, without any improvements, is to-day the greatest vessel for harbour and coast defence ever known.”—Mr. Lewis Nixon, builder of the Holland.

When the British Admiralty decided to experiment with submarine boats, the type chosen was that invented by Mr. John P. Holland. It is therefore fitting that some account should be given of the various stages through which the Holland boat has gone in the course of its evolution.

Although Mr. John P. Holland, of Paterson, New Jersey, 262U.S.A., made a number of experiments in the sixties, his first real submarine boat was not built until 1875.

Holland No. 1 may be described as an under-water canoe, for there was only room for one occupant, who propelled the vessel along by means of pedal-acting mechanism, a small screw being fitted at the stern.

The dimensions were:—

MR. HOLLAND’S EARLIEST SUBMARINE.

(1875.)

It was divided into three parts; the two end ones were used as air reservoirs and submersion tanks, and that in the centre contained the operator, whose head was encased in a diver’s helmet. The vessel was driven by a small propeller projecting from the stern joist, and beneath this was the rudder.

Holland No. 2 was constructed in 1877 at the Albany City Iron Works of New York.

Its dimensions were:—

It had a double shell, and in the space between water ballast could be admitted for submersion. The motor was a petroleum engine of 4 h.p., working a screw at the stern. Two rudders, one vertical, the other horizontal, were carried, and experiments showed that the latter acted better when placed at the stern than when on the side. After a series of trials on the Passaic River, Mr. Holland removed the 263machinery and sank his boat under Falls Bridge at Patterson, where it probably remains at this day.

Holland No. 3 was commenced in 1879 in the yards of the Delamater Iron Company of New York City, and finished in 1881.

Its dimensions were:—

It was propelled by a 15 h.p. petroleum engine of the Brayton type; as armament a submarine cannon, 11 feet long and 9 inches in diameter, was carried, and the projectile was expelled by means of a charge of compressed air. “She was the first submarine since Bushnell’s time,” writes Admiral Hichborn, “employing water ballast and always retaining buoyancy, in which provision was made to ensure a fixed centre of gravity and a fixed absolute weight. Moreover, she was the first buoyant submarine to be steered down and up inclines in the vertical plane by horizontal rudder action, as she was pushed forward by her motor, instead of being pushed up and down by vertically acting mechanism. Her petroleum engine, provided for motive power and for charging her compressed air flasks, was inefficient, and the boat therefore failed as a practical craft; but in her were demonstrated all the chief principles of successful brain-directed submarine navigation. After the completion of the boat, Holland led the world far and away in the solution of submarine problems, and for a couple of years demonstrated that he could perfectly control his craft in the vertical plane. Eventually, through financial complications, she was taken to New Haven, where she now is.” In 1896 her air-compressor was removed to work a forge, and she is now nothing but an empty hull.

264Holland No. 4 was constructed in the yard of Gammon and Cooper, of Jersey City. It was simply meant as a model, being only 16 ft. 4 in. long, 28 in. in diameter, and displacing a ton. The motor was an explosive engine, which was to serve for propulsion above and below the surface. The life of this model was unfortunately short, for on one occasion she was submerged with her cupola open, with the result that the water entered and she sank.

Holland No. 5, commonly known under the name of the “Zalinsky Boat,” owing to its dynamite guns, was built at Fort Lafayette.

It was—

and was armed with two Zalinsky pneumatic dynamite guns. Owing to an error in construction, she was shipwrecked on the rocks, but was afterwards rescued and used for some experiments in the docks.

Holland No. 6 never got further than the design stage; it was not a true submarine, not being capable of total submergence.

Holland No. 7 was known as the Plunger.

265

BOW VIEW OF THE “HOLLAND.”

Whilst Mr. Whitney was Secretary of the Navy he was anxious to provide some kind of protection against gun-fire for torpedo-boats, and under suggestion he invited proposals for submarine boats. A great many designs were sent in, and two propositions to build were made by the famous Cramp firm, the designs being those of Holland and Nordenfelt. It will not be necessary to enter into any detailed comparison between the two types. Suffice it to say that while Mr. Nordenfelt screwed his boat down by using vertical screws, and held the opinion that the keel of a submarine must always be kept parallel to the surface of the water, Mr. Holland steered his boat down and up an incline by the action of horizontal rudders placed in the stern. The Holland design was accepted, because “it embodied the ideas of a fixed centre of gravity, of an exact compensation for expended weights, of a low longitudinal metacentric height, and of quick diving and rising by the effort of the propeller pushing the vessel against the resistance of her midship section only down and up inclines, the angles of which were to be determined by horizontal rudder action.” Difficulties in regard to guarantees of performance prevented the closing of a contract that year—1888—and the next year, after all preliminaries were arranged, a change in administration caused the matter to be put aside. After the lapse of some years interest in submarine boats was again aroused, and on March 3rd, 1893, Congress authorised the building of a single experimental vessel, and after a third competition of designs and other delays a contract for a Holland boat was signed two years later with the Holland Torpedo-boat Company (formed in 1895). The new vessel was to be called the Plunger. The long delay was owing, 266Mr. Holland has said, to the opposition of a few officers of Conservative spirit, who preferred to see the value of submarine boats fully established by their employment in other navies, and their place in schemes of attack and defence properly located before they could recommend their adoption in their own navy.

The dimensions of the Plunger are as follows:—

Although the Plunger was actually launched on the 7th of August, 1897, she was never completed, although for three years various alterations were carried out. The steam engines were removed and were replaced by oil motors, but by the time these modifications had been effected the Holland Torpedo-boat Company came to the conclusion that the Plunger, when completed according to the terms of the contract, would be so inferior to the more modern Hollands that they offered to refund the Government all it had paid them upon the Plunger, and all expenses connected with the contract, provided the Navy Department would enter into a contract for a new 267Holland. The proposition was accepted, and the money, some $94,000 odd, was accordingly refunded. A short time ago it was announced that the Plunger was being broken up.

Holland No. 8 resembled very much the later types, but as she was not entirely satisfactory, Holland No. 9 was built. This latter vessel is generally referred to as the Holland. She was the prototype of the British submarines, and her performances have excited a vast deal of interest all over the civilised world.

The dimensions of the Holland, which was constructed at Elizabeth Port, New Jersey, by Mr. Lewis Nixon, at the expense of the Holland Company, and whilst the alterations to the Plunger were still in progress, are as follows:—

On the surface the motor is a gasoline engine of the Otto type of 50 h.p., giving a speed of about 7 knots an hour, and under water an electric motor, capable of giving 50 h.p. for 6 hours or 150 h.p. for 2 hours, is used. The battery of accumulators consists of 66 cells, giving 350 amperes for 4 hours, and allowing a speed of 8 knots an hour. The radius of action on the surface is 1,500 miles at 7 knots without a renewal of gasoline, and it can go 50 knots under water without coming to the surface. In order to dive water ballast is admitted until the boat is flush with the water, and it is then steered down an incline by her two horizontal rudders at the stern, carried in addition to the ordinary vertical rudder. It has a reserve buoyancy which tends to bring it to the surface in case of accident. It can dive to a depth of 28 feet in 8 seconds. The armament was intended originally to consist of three tubes—two at the bows and one at the stern; 268two were to throw aerial torpedoes and shells, while the third was to discharge Whitehead torpedoes. The submarine gun aft, which was worked by pneumatic power, and was capable of throwing 80 lbs. of dynamite a distance of about half a mile, was, however, abandoned. The aerial gun at the bows is 11·25 ft. long and 8 in. in diameter, and each of the projectiles weighs 222 lbs., and carries 100 lbs. of gun-cotton. This gun can shoot these projectiles a distance of one mile. The torpedo tube is 18 in., and three torpedoes are carried; they have a running capacity of more than half a mile at a speed of 30 knots. On the top of the boat a flat superstructure is built to afford a walking platform, and underneath this are spaces for exhaust pipes, and for the external outfit of the boat, such as ropes and a small anchor. From the centre of the boat a turret extends upward through the superstructure about 18 inches. It is about 2 feet in diameter, and is the only means of entrance to the boat; it is also the place from which the boat is operated.

As Mr. Holland had been experimenting with submarine craft for 25 years, and as he now considered that he had secured a practical result, and that his newest boat would do all that he claimed, he requested the United States Admiralty to make a series of exhaustive trials with the Holland. These trials accordingly took place, and having been found to be satisfactory, the Holland was purchased by the U.S. Government on April 11, 1900. The price paid was $150,000, and the Company stated that the vessel had cost them, exclusive of any office expenses, or salaries of officers, $236,615,427. The Holland was formally placed in commission under the command of Lieut. Harry H. Caldwell, U.S.N., on October 13, 1900, but the boat had been under the charge of this officer since June 25, 1900.

An Act making appropriations for the Naval Service for the fiscal year ending June 30, 1901, which was approved on June 7, 1900, contained the following item:—

269“The Secretary of the Navy is hereby authorised and directed to contract for five submarine torpedo boats of the Holland type, of the most improved design, at a price not to exceed one hundred and seventy thousand dollars each: Provided, That such boats shall be similar in dimensions to the proposed new Holland, plans and specifications of which were submitted to the Navy Department by the Holland Torpedo-boat Company, November twenty-third, eighteen hundred and ninety-nine. The said new contract and the submarine torpedo-boats covered by the same are to be in accordance with the stipulations of the contract of purchase made April eleventh, nineteen hundred, by and between the Holland Torpedo-boat Company, represented by the secretary of the said company, the party of the first part, and the United States, represented by the Secretary of the Navy, the party of the second part. Towards the completion of the equipment, outfit of the new vessels heretofore authorised 400,000 dollars.”

A contract for the construction of six (not five) submarine torpedo-boats, Nos. 3–8, was finally concluded on the 25th of August, 1900, between the Holland Torpedo-boat Company and the Secretary of the United States Navy.

Their names are as follows:—

1.

Adder.

2.

Moccassin.

3.

Porpoise.

4.

Shark.

These four were to be constructed in the yards of Lewis Nixon, at Elizabethport, New Jersey.

5.

Grampus.

6.

Pike.

These were to be built at the Union Iron Works, San Francisco.

As the specification for these six boats resembles in almost every particular that for the five British submarines of the Holland type, details need not be given here.

270The contract price of the hull and machinery of each boat was $34,000.

The first of the six submarine boats ordered from the Holland Company by the United States Government, to be launched was the Adder, the launching ceremony being performed by Mrs. E. B. Frost, wife of the Secretary of the Holland Company.

The Porpoise, Moccassin, and Shark were all launched in 1901; at the time of writing the Grampus and the Pike were still on the stocks.^[11]

The Fulton is an exact duplicate of the six boats the Holland Torpedo-boat Company have built for the United States. She has been built at the expense of the company with the object of experimenting, to see if it is possible to get smaller engines with less weight and greater power.

Mr. Holland said that he could not build his boats any longer and could not get any more speed, simply for the reason that he could not get engines with enough power. It was his intention to subject every part of the equipment and motive power of the Fulton to thorough test, and to incorporate the experience thus gained in the six Government boats.

The Fulton was launched on June 2, 1901, from the yards of Lewis Nixon.

In the autumn of last year the vessel, with seven officers and men on board, remained for fifteen hours at the bottom of Peconie Bay, whilst a bad storm was raging above, without having the air in the interior renewed. The turret-hatch was closed at seven o’clock on November 23rd, and at the expiration of fifteen hours it had not been found necessary to draw off any of the compressed air contained in the four flasks 271taken down with the boat. The atmosphere was said to be as pure as in the cabin of an ordinary yacht. A glass of water filled to the brim stood on the cabin table during all the time of submersion, and not a drop was spilled in spite of the gale blowing above water. The new submarines of the Fulton type carry 59 cubic feet of air compressed by a pressure of 2,000 pounds to the square inch. With the supply to fall back on, Captain Cable said that six men could probably live in the Fulton for something like eight months. It was, according to him, more a matter of food than air.

STERN VIEW OF THE “HOLLAND.”

In December, 1901, the Fulton gave an exhibition for the benefit of the Norwegian naval officers who were deputed to inquire into the capabilities of the Holland boats. Whilst travelling under water it discharged dummy torpedoes at targets with perfect accuracy, and dived repeatedly once in three seconds, or quickly enough to dodge a shell aimed at it. 272Commander Geelmuyden, who was aboard, said that when he inspected the Holland it was quite incapable of the Fulton’s performances. There is indeed little doubt that the newest Holland boats represent all that is newest and best in submarine boat construction.

She does not, however, appear to be perfect in every particular. On Monday, April 28, 1902, the Fulton left New York for Washington, convoyed by the steamer Norfolk. Her course was to have been to Hampton Roads, up Chesapeake Bay and the Potomac River to the Federal capital, where she was expected to arrive on the Saturday following her departure. She had on board, besides stored electricity for her submarine trials, 750 gallons of gasoline for surface propulsion. She put in at Delaware Breakwater on Monday morning, and shortly afterwards an explosion occurred. Lieutenant Oscar Kohen, of the Austrian Navy, who was on board at the time, was severely bruised, while a lieutenant of the American Navy and several others were injured. The boat itself was not seriously damaged. It transpired that the accident was due to a slight explosion of hydrogen gas caused by the spilling of the acid from the batteries. It was stated that during the trial the engine ran twenty hours in a very heavy sea without stopping, and the speed of the boat averaged 87
10 knots, and behaved extremely well.

The Holland Torpedo-boat Company intended, so it is stated, to build a couple of boats to go to the lakes and to be carried on battleships. Mr. Lewis Nixon, the builder of the Holland, said recently that Congress should provide one submarine boat at least for every battleship and cruiser small enough to be swung by a derrick, and lowered into the water before going into action. He remarked that it was perfectly feasible to design a successful submarine boat for such service. Admiral Dewey had said that big vessels could be fitted to carry diving torpedo-boats, and that special transport steamers would be the best for this purpose.

“By reason of her submarine division the navy of France is the most dread and the most powerful in the world” (A French journalist, after the torpedoing of the battleship Charles Martel by the Gustave Zédé in Ajaccio Harbour in July, 1901).

“Jamais nous n’aurions trop de sous-marins.”—(M. V. Guillouse in Le Yacht).

Had it not been for the keen and abiding interest displayed by Admiral Aube in the question of under-water warfare, it is extremely unlikely that the French Navy would be in possession of its present fleet of submarines.

It was in 1886 that Admiral Aube, being then Minister of Marine, requested designs for submarine boats. In most quarters his ideas were received with ridicule, and the experts of the day did not hesitate to declare that such vessels would never become warships, that at best they would serve only as diving bells, and that submarine navigation was a subject more fitted for romancers like Jules Verne than for serious marine architects.

The Admiral held his own, however, and contrary to the advice of the Director of Material, ordered from M. Goubet on the 12th of September, 1886, a small boat, and in the same year, in face of the protests of all his colleagues, he signed an 274order directing the Société des Forges et Chantiers de la Méditerranée to build a larger vessel from the plans of M. Gustave Zédé.

M. A. Saissy, a French journalist who has warmly advocated the constructing of submarines by France, has written a preface to Messrs. Forest and Noalhat’s treatise, “Les bateaux sous-marins” (1900), in which he pays a tribute to the endeavours of the late Admiral to provide his country with a submarine fleet. “Had we but followed his ideas,” he writes, “had we but carried out his plans, not only would the defence of our coasts and of our colonies be assured against attack, but France would be at this hour the greatest naval power in the world.”

Admiral Aube argued that in the naval war of the future France would most certainly act on the defensive, and that it was therefore the business of the nation to prepare, to organise, and to bring to the highest state of efficiency its weapons of defence. He blamed the Admiralty for spending the millions which had been voted for the navy in the creation of “mastodons” which “had neither speed, nor teeth to bite.”

M. Saissy says that the Admiral’s plans were put on one side and that his warnings appealed to deaf ears, but the time came when they were brought to light again.

“On the morrow of Fashoda, after the insolent behaviour of the English, the Minister of Marine saw his duty plain before him, and set to work with zeal. M. Lockroy was surrounded by officers to whom the programme of Admiral Aube was not a chimera. The study of submarine navigation was actively pushed forward, and if M. Lockroy had remained at the Ministry we should have at this moment an important number of these weapons of naval warfare, so precious and so indispensable; but he was superseded and, according to custom, his successor began to undo the good work of his predecessor, so that we find ourselves to-day in a most difficult situation. Our habit is always to act as if we had plenty of time before us, and the enormous budget of the Navy and its supplementary 275estimates will, unless we are on our guard, be wasted in a useless expenditure.

“If war had broken out last year, all our maritime ports and our arsenals would have been bombarded and burned, before our squadrons could have attempted to defend them.

“Is the situation better now than it was then? Have the means of defence been strengthened as they should be?

“The Ministry of Marine is aware of the gravity of the situation. Our legislators cannot be ignorant of the facts, and yet nothing is done. Our only hope is in the individual initiative of those honest men of science who give some thought to what the morrow may bring forth.”

M. Fleury Ravarin in a report written in November, 1900, supporting the Ministerial programme for the building of large battleships, remarked:—

“If we are now asked what a fighting navy should really be we must say that it should be capable of fighting upon the high seas with the navies of rival nations, and that it is the business of the technical boards of the Navy to indicate the nature and composition of the fleet required for the purpose. It is for the Parliament to decide if we shall be content with a modest defensive navy which would be unable, we cannot repeat too often, to do more than delay defeat in case of war, or whether on the other hand France is resolved to enforce her position as a great Power and to make the heavy but remunerative sacrifices necessary to give weight to her voice in the councils of Europe, thus attracting to herself commerce and riches, and spreading throughout the world her influence and her traditional ideal of justice and generosity.”

Recent French naval activity in ship construction, deepening the anchorages in home waters and protecting them against torpedo attacks, organising torpedo stations, enlarging dry docks, creating vast depôts of coal, war stores, &c., facilitating 276the rapid coaling of vessels, providing bases of operation in different parts of the world, &c., is avowedly aimed at Great Britain, and the idea that was uppermost in the minds of those who counselled these preparations was that France should be able, when a favourable moment arose, to strike a swift and sudden blow at British supremacy.

Writers in France openly acknowledge that all French manœuvres embrace the idea that the “enemy” is Great Britain, and the manœuvres of 1901 took the form of an attempt to prevent a junction of the British Channel and Mediterranean squadrons.

Baron de Coubertin has lately warned England in the plainest and most emphatic way that France will support Russia in any war with England, and it is now well known that Russia was prepared to support France in the Fashoda crisis.

Opinion in France is divided on the question of the shipbuilding programme; whilst, on the one hand, there are those who regard the construction of large battleships and cruisers as absolutely necessary, on the other hand, there are others who look upon this type of warship as inferior to the smaller class of fighting ship.

Just now the former party is in the ascendant. M. de Lanessan has contrasted the short range of the torpedo with the long range of the gun, and has deduced from the conditions the necessity for two classes of vessels (a) torpedo craft, and (b) battleships and armoured cruisers. He has explained that in order that the gun should be given its full value it is essential that the platform should be stable and that a vessel of considerable dimensions was thus called for. It was impossible upon such a platform to place many powerful guns, but a necessary consequence was that these should be protected, and hence came the need of heavy armouring. In short, the two qualities of offence and defence were indissoluble, but they were not the only qualities called for; speed 277and range in action were also necessary, and these again led inevitably to the heavy battleship.

M. Fleury-Ravarin, commenting on the fact that many advocates of the guerre de course had asked if there did not exist a more economical means of making war than that which consisted in opposing to certain ships others of a like character, told the French Parliament that it (the guerre de course) had never brought an enemy to submission, and that in the existing conditions of naval warfare it was very costly, whilst speed, its essential element, was of all elements at sea the most elusive. Moreover, the organisation of the guerre de course required many naval bases so that not only was it more costly in the beginning, but it demanded greater charges for maintenance. For these reasons this system of warfare could not be raised to a method; it must remain an accessory.

There can be no doubt that the popularity of the submarine craft with ministers, writers, journalists, and populace is due very largely to the idea that these vessels will in warfare prove capable of meeting and defeating the battleships and cruisers which Great Britain will send against France when the “Real Thing” arrives.

A writer who adopts the nom de plume of “Armour” points out the probable course of action in a naval war between France and Great Britain. British squadrons would be deprived of value by giving them no object to attack and preventing the possibility of establishing an effective blockade. The French ships would be withdrawn to the forts, which would be strongly fortified so as to secure them against attack. The close watching of a port would be too dangerous to be undertaken, and at night the squadrons would be obliged to withdraw to great distances in order to escape the menaces of the submersible boats: and at the same time the ingress and egress of cruisers—the only large vessels that would put to sea—would be easy.

In theory the British fleet should be equal in strength to 278the combined fleets of any two Powers, and although there are times when our strength is below the requisite, this ideal standard should be ever before those responsible for the condition of the navy. In the opinion of a certain class of Frenchmen the submarine will at a comparatively small expense, and in a very short space of time, satisfactorily neutralise all that England can do.

They hold that the use of the torpedo greatly strengthens an inferior but enterprising enemy, and that the tendency of torpedo warfare is to reduce the maritime forces of states differing considerably in power to the level of equals.

The opinions of a few of the most ardent believers in submarines among Frenchmen may be given here.

A French naval writer commenting on the sums expended by the French Government on the construction of submarines writes—

“The cruiser which can guard itself from the ordinary torpedo-boat will be without defence against the invisible enemy slowly creeping up to it to discharge its torpedo. It will be no longer possible for it to enter narrow waters and to approach the enemy’s coast. Its only safety will be in flight, and it will become a relic of the past. The naval battles of the future will take place not on the surface but in the depths of the ocean.”

M. Lockroy, in 1899, speaking in explanation of the French navy estimates, said that whilst formerly France had but one naval rival, she now had four, and the Triple Alliance could muster but sixty-seven battleships, while England had ninety-four, and France sixty. Could France ensure superiority over her rivals? Yes; submarine navigation ensured her a considerable advantage. The achievements of the Zédé might lead to a revolution in naval equipment and warfare. Meanwhile France had a terrible weapon—just what she wanted. “Everything,” said Vice-Admiral Jurien de la Gravière, “which threatens les colosses and tends to emancipate les 279moucherons should be warmly welcomed by the French Navy, for by such means we can double in a few years our forces and our power.” One might be forgiven for supposing that all French writers were on the side of the smaller fighting vessel. There are, however, quite as many who are opposed to this policy and who believe that France would be better with more battleships and cruisers and less torpedo craft, but they do not state their views in the emphatic and picturesque language of the other party, and as a consequence their influence is less felt. In 1888 Admiral Bourgois in his book on Torpedoes emphatically stated that the torpedo and the torpedo-boat could not take the place of the ironclad.

Says another writer: “Qu’on se rappelle les mitrailleuses de 1871. Nous souhaitons sincerement que le sous-marin après avoir inspiré la meme confiance exagerée ne cause pas les mêmes déceptions que les mitrailleuses de 1870!”

Again the same writer reminds his countrymen that a naval battle cannot be compared to a manœuvre when everything is arranged beforehand. The submarine cannot venture to sea in foul weather without exposing itself to dire accidents, but will the enemy wait until the sea is calm before commencing battle? What would happen if he chose the moment to attack when a troubled sea forces the submarine to remain in port and no other defence can be utilised?

The submarine, he says, is still in the rudimentary condition, and the problem of submarine navigation has not yet been solved.

“Other navies possess submarines and have made experiments, and we cannot be certain that we are ahead of them, although we make the most fuss.

“A means of defence from the attack of submarines, if ever they become really dangerous weapons, will assuredly be found, and the country which is so imprudent as to rely chiefly on such vessels will be quickly disarmed by a stronger foe.

“To sum up, submarine navigation, like aerial navigation, is 280as yet only in the experimental stage—let us follow its progress carefully and encourage experiments; but to make a radical transformation in our navy on the strength of certain manœuvres would be an act of imprudence both perilous and criminal.”

The attitude of the saner class of Frenchmen may be gathered from the following extract from a speech delivered in the Senate on the 4th of December, 1900.

“At the present time we are certainly all of us believers in the submarines; I am as keen a believer as you, but it must be recognised that it is still the vessel of the future rather than of to-day.

“The day may come when it will cause all the cruisers to disappear, but to-day the submarine is a weapon about whose efficiency one cannot be very certain, or at least whose use in warfare is limited to special circumstances. For the present, then, we needs must accept the proposals of the Admiralty and wait to substitute these new engines of warfare for our present bigger vessels until the future has given to submarines the power and the value which some already claim for them.”

“It has been the crowning misfortune of France,” said Sir G. Clarke, “that every fresh invention has resulted to the advantage of the principal naval Power, from whom it has ever been her ambition to wrest the command of the sea. A closer study of the problem of the submarine boat will probably reveal the fact that the boat will be of little use against moving targets, but, having been convoyed to its destination, may be of service against fixed targets. The Power able to blockade its enemy can so convoy the submarine boat without risk, and then it can be sent on its adventurous enterprise in the crowded harbours of the enemy.”

It will be only an instance of the irony of fate if submarines come to be employed by Great Britain against France in the next great war, but the French writers who declare that England reaps where France has sown must remember that no 281nation can hope in these days to possess the monopoly of any one particular weapon of warfare.

“We have seriously believed,” says a writer in the Journal de la Marine, “that in all the great modifications that have been brought about in the construction of submarines is the result of the important changes which the last fifty years of the century have produced in the art of naval warfare. All these changes have been sought out, experimented upon, studied, and finally realised by France, who has also been the first to apply them. These results have established in a brilliant and incontestable manner the skill of our engineers; but our rivals have not only appropriated the results of our labours, but they have not been slow to place themselves on equal terms with us, and finally to excel us in the application of these discoveries.... We have been only the humble artisans working for them to establish their superiority.”

All this, it is added, is due to the industrial supremacy of England. France built a commerce-destroyer, D’Entrecasteaux, of 8,000 tons, and with a speed of 19 knots. She was to prey on English ships of commerce like a second Alabama. And Great Britain replied to the threat by building the Powerful and the Terrible, each of 14,000 tons and 22 knots, and the efforts of France were thus brought to naught, and the Journal wearily complains that, “It is easy for England to place three armed cruisers for service where we can only place one.”

In the question of submarines Great Britain has pursued the same perfidious conduct. Very quietly the British sat still until France had done all the preliminary work of experiment and trial, and now, after something of the nature of a real engine for naval war has been produced by their engineers, Britain quietly steps in and begins at the point France had reached.

“The English Government have not chosen to contribute by their own researches and work to upset a state of things to which the supremacy of the British Navy is due; the appearance 282of a boat which will plunge under the water and act on the offensive within a considerable radius of action has enlarged the question. At present all they wish is the protection of coasts and harbours.”

But it was the intention of France to place herself in a position of offence towards England.

“In the near future the types Narval and Holland, being invisible enemies, would be in a position to operate against the English coasts and carry destruction into the midst of the naval forces which protect them. They would be able to seek and hunt out these same forces even in the harbours and roads where they are lying at anchor.”

But the ability of England to reply with some other equally good engine and protect herself as she has always done oppresses the writer’s mind.

“On the other hand, if England with any chance of success is able to oppose with the torpedo destroyer or some other force of an equalising nature, she will render all this impossible to the submarine. There will be some other means of defence against these redoubtable engines, though the solution does not appear to be near. England will find her best means of protection to attack the coasts of the enemy.... Anyway, she has five submarines on the stocks, and it is believed that these will be followed shortly by others.... The English have kept it a great secret. They have allowed a time of serious observation and attention to pass not with indifference before entering on the path opened by other nations.”

The writer takes consolation from the reflection that, although when England does begin it is easy for her to put three armed cruisers where France can only put one, yet the start in submarines which France has will revolutionise the conditions of naval war, and, he hopes, is such that she need not fear what England can do for a long time to come. “Doubtless,” he says, “more than a year will pass before the Holland or vessels of that class, however perfect they may 283be, can really be placed on service.” Then follows an enumeration of France’s fleet of submarines:—

“We possess already four submarines in service actually employed on the same work as torpedo boats—the Gymnote, the Gustave Zédé, the Morse, and the Narval. The Française and the Korrigan will follow the Gnome and the Lutin at Rochefort. At Cherbourg four are now on the stocks—the Silure, Triton, Sirène, and Escapadon. During this year twenty-three more will be placed on the stocks, which will make altogether thirty-seven submarines.”

These will make a most formidable fleet, sporting like porpoises round the English warships in the Channel and along her shores, and holding them at the mercy of France. “The fact that England should launch into their construction shows that they are more menacing to her than to us,” adds the writer complacently. But France is not to sit down quietly:—

“But since we have made a very real advance in that which concerns the submarine, let us work without ceasing to preserve this superiority. Our engineers, who have succeeded so brilliantly, will be able to work for themselves new improvements while profiting by the experience already acquired.”

Gymnote.

The first submarine built for the French navy was the Gymnote. The original plans of this vessel were worked out by the celebrated engineer, Dupuy de Lôme, but unfortunately he never lived to execute his project, for he died just when he had finished the details.

Some years later M. Gustave Zédé, a Marine Engineer, 284revived the ideas of his friend, and after making some modifications in Dupuy de Lôme’s original design, he brought it before Admiral Aube, the Minister of Marine, who accepted it at once, and signed a contract for its construction by the Société des Forges et Chantiers de la Méditerranée. M. Zédé was one of the directors of this society, and thus he was able to superintend the work, which was carried out under the direction of M. Romazzotti, then first-class Assistant Engineer of Marine.

The Gymnote is built of steel in the shape of a cigar. It is 59 feet long, 5·9 feet beam, and 6 feet in diameter, just deep enough to allow a man to stand upright in the interior; its displacement is 30 tons, a total weight a little less than the weight of the water displaced by the boat when completely immersed, and its speed about 6 knots; leaden plates placed on each side of the boat in two hollows regulate its draught of water. The top of the vessel affords a narrow platform, and on this are a manhole and a little cupola, with windows.

The motive power was originally an electro-motor of 55 h.p., driven from 564 accumulators. It was designed by Captain Krebs and built in the workshops of the Société des Forges et Chantiers at Havre.

It was of extraordinary lightness, weighing only 4,410 lbs., and drove the screw at the rate of 2,000 revolutions a minute, giving a speed of 6 knots an hour, its radius of action at this speed being 35 knots; reduced to 4 knots its radius of action was 100 miles.

This motor was afterwards replaced by a much simpler machine.

Immersion is obtained by the introduction of water into three reservoirs, placed one forward, one aft, and one centre.

The water is expelled either by means of compressed air or by a rotary Behrens pump worked by an electro-motor.

Two horizontal rudders steer the boat in the vertical plane and an ordinary rudder steers it on the horizontal. Originally 285one horizontal rudder only was carried at the stern, but this did not answer well and was given up.

The behaviour in the sea of the boat when subjected to the influence of this rudder was somewhat unsatisfactory. For rather prolonged “dives,” such as would be necessary, for example, in forcing a blockade, the instability of the boat became very great, and the man at the helm was unduly fatigued without succeeding in retaining the mastery of his craft. On account of this instability no greater speed in submersions than 6 knots was attained. For this speed the inclination of the axis of the boat was from three to five degrees forward. The difference in the draught of water between the bow and the stern was 0·88 metre (about 34 inches) for an inclination of 3 degrees; for 5 degrees it reached 1·50 metres (nearly 5 feet).

Photo by] [M. Bar

THE “GYMNOTE.”

Another system of “dip” rudder, proposed in 1891, executed in 1893, and tested towards the end of 1894, 286consists in the employment of two horizontal floatboards, placed on each side of the boat at the height of the midship frame. Their use, combined with that of the stern rudder, has given better results. The boat is inclined less for the “dive,” dips more regularly, and lurches or “yaws” less.

When navigating on the surface or when her hull is immersed to the water-line the Gymnote carries a cupola, or movable shell with sidelights.

This apparatus is composed essentially of a metal shell provided with sidelights all round its circumference. A cylinder of strong tarred canvas fixed on steel springs, which ensure rigidity, bind the shell itself to the upper part of the hull. Horizontal folds in front permit this canvas to double up regularly upon itself after the style of a Venetian lantern, and in such a way that when the doubling up is complete the height of the shell (or “casque”) comes exactly on a level with the upper platform of the boat. During navigation at the surface or on the water-line the whole structure can be raised or lowered by means of a vertical screw moved by a horizontal hand-wheel of which the movable nut constitutes the lower part of a vertical frame formed of metallic uprights, which go to rejoin the hull. When the system is at the end of an upward course the canvas is completely stretched and the observatory is at its maximum height; when, on the contrary, it is at the end of a downward run, the canvas is completely contracted and the “kiosk” has externally disappeared.

Such a system (as a French writer has pointed out) is very faulty and dangerous, as may be easily conceived. In the first place, considering the feeble resistance which a canvas can oppose even when mounted on steel springs, it was indispensable to protect it against the pressure of the water during the “dive.” This was believed to have been accomplished by providing the shell with an indiarubber crown, forming a sort of beak, which, when the system was completely 287folded up and closed, came to rest on another washer of indiarubber placed at the bottom of a groove, where it formed a watertight joint. This would have been very good if there had been certitude that the beak or cap fixed on the shell rested exactly at the bottom of the groove. To make sure of that there had been arranged a small opening, which ought to give water when the closure was not sufficient, but this only gave an almost illusory means of control, the opening being found almost always obstructed by some detritus, débris of sea-wrack, and other foreign bodies encountered by the vessel. It will be seen what permanent danger was created by this apparatus—danger which on two occasions just missed causing the loss of the craft, an unlooked-for chance alone preventing it from foundering.

It would further be easy to show that in spite of its danger the movable shell, with canvas folded in accordion pleats, was almost unusable—that it could not serve when there was a slight sea on; that it caused, even during progress on the water-line, infiltrations capable of sinking the boat; and finally that, even in a calm sea and under the best conditions, the length of the manœuvre of raising and lowering made the operations of the “dive” slow and wanting in precision—operations which demand so much rapidity and delicacy, and to which alone it is allowable to sacrifice something on a submarine boat. This movable shell was 0·35 metre (about 13½ to 14 inches) in diameter; it was abandoned after all the Commandants had successively condemned it, and to-day it is never used.

For use below the surface the Gymnote carries an optical tube with two inclined mirrors and a periscope, but these have so far given but poor results.

The Gymnote was first tried on September 24, 1888, in Toulon harbour. The French Press was enthusiastic about the qualities of the new boat. According to Le Temps she was a complete success: “She steers like a fish both 288as regards direction and depth; she masters the desired depth with ease and exactness; at full power she attains to anticipated speed of from nine to ten knots; the lighting is excellent, there is no difficulty about heating. It was a strange sight to see the vessel skimming along the top of the water, suddenly give a downward plunge with its snout and disappear with a shark-like wriggle of its stern, only to come up again at a distance out and in an unlooked-for direction. A few small matters connected with the accumulators have to be seen to; but they will not take a month.”

At the trials which took place before the Maritime Prefect of Toulon in 1888, the Gymnote behaved very well, as far as speed and stability were concerned, but it was found difficult to keep her at a constant level when submerged.

The Gymnote was commanded by several officers, and for some time served as a training school for officers and men in the management of the new type of craft, and many suggestions and improvements were suggested by them, and in some cases carried out. She is now used as an instructional boat.

At first the vessel carried no armament, but afterwards two torpedo tubes were fitted.

Gustave Zédé.

The Gymnote being intended merely as an unarmed, experimental craft, the next step was to construct a larger vessel carrying a submerged torpedo tube.

M. Barbey, the Minister of Marine, took the initiative in this project and M. Romazzotti, Naval Constructor, was ordered to draw up the plans for the boat and to place it on the stocks in the yard of Mourillon.

The construction of the boat (which was to be named the Sirène) was decided upon in 1890.

During the building M. Zédé, the inventor of the Gymnote, died, and the Minister of Marine conceived the happy idea of 289paying a last tribute of respect to the famous engineer by giving the name of Gustave Zédé to the first armed submarine of the French fleet.

The Gustave Zédé was launched at Toulon on June 1, 1893; she is 159 feet in length, beam 12 feet 4 inches, and has a total displacement of 266 tons. Her shell is of “Roma” bronze, a non-magnetic metal, and one that cannot be attacked by sea water.

Photo by] [M. Bar

THE “GUSTAVE ZÉDÉ.”

The motive power, of 720 h.p. is furnished by two independent electro-motors of 360 h.p. each of the Thury type, constructed by M. Sautter-Harlé and fed by accumulators of the Laurent-Cély type. The screw revolves at the rate of 250 revolutions a minute.

In order to endow the boat with a wide radius of action a battery was provided composed of 720 cells, each containing 29 plates and having an output of 400 amperes and a capacity 290of 1,800 amperes an hour. The Gustave Zédé had scarcely been placed in the water before the motive power gave out owing to the short-circuiting of most of the cells.

To remedy this, two plates were removed from each cell in order that each plate might be wrapped in a “chemise en toile d’amiante.” The result was no better for the covers, and the ebonite joints burst into flames and the boat was in danger of being consumed by fire. It was then decided to reduce it to 360 cells; this gave a speed of eight knots, though originally it was hoped that sixteen would be obtained.

The successive crews of the Gustave Zédé have suffered much from the poisonous fumes of the accumulators, and during the earlier trials all the men on board were ill.

In the bows is a torpedo tube and an arrangement is used whereby the water that enters the tube after the discharge of the torpedo is forced out by compressed air. Three 17½ Whitehead torpedoes are carried. In spite of the fact that a horizontal rudder placed at the stern had not proved serviceable on the Gymnote, such a rudder was fitted in the Gustave Zédé. With this rudder she usually plunged at an angle of about 5°, but on several occasions she behaved in a very erratic fashion, seesawing up and down, and once when the Committee and Experts were on board, she proved so capricious, going down at an angle of 30°–35°, often throwing the poor gentlemen on to the floor, that it was decided to fix a system of six rudders, three on each side.

Four water tanks are carried, one at each end and two in the middle, and the water is expelled by four Thirion pumps worked by a little electro-motor; these pumps also furnish the air necessary for the crew and for the discharge of the torpedoes.

For steering on the surface there was placed on the Gustave Zédé at first a movable shell with folded canvas similar to that of the Gymnote. It was found even more dangerous there than on the smaller boat; it was, therefore, taken away and 291replaced by a fixed kiosk, immovably attached to the hull, and of a shape tapering away fore and aft. The Gustave Zédé possesses, for under-water vision, an optical tube and a periscope.

The crew consists of an officer and eight men.

The first journey of any length undertaken by the Gustave Zédé was from Salins d’Hyères to Toulon. The sea was choppy, and a fresh breeze was blowing, and yet no mishap of any kind occurred. She navigated for the greater distance at the surface, with her cupola above the water, but when the water became too rough she plunged under the waves, occasionally emerging to take bearings. The distance between Toulon and Salins is short, and so the next journey was from Toulon to Marseilles, a distance of forty-one miles, and this the Gustave Zédé covered also in a rough sea without accident of any kind at the rate of six knots. Although accompanied by a tug, the Utile, it had no occasion for its services. She navigated on the surface all the way, but by reason of the swell everything was hermetically closed, and for more than seven hours the crew were kept in conditions exactly the same as if the vessel had been really under water.

On reaching Marseilles the accumulators had sufficient power left to perform the return journey.

The trials of the Gustave Zédé resulted in stimulating the interest of the French in submarine warfare. Writers vied with one another in extolling the qualities of under-water craft and the popular imagination saw already the powerful fleets of Great Britain and Germany destroyed by the attacks of the French submarine flotilla.

“Jamais nous n’aurions trop de sous-marins,” wrote M. V. Guilloux in Le Yacht. “The twelve years of consecutive efforts and studies continued in order to obtain a solution of the question of submarine navigation have at length been crowned with success,” said a writer in the Moniteur de la Flotte.

292Lieutenant Maurice Loir writing in the Moniteur of a later date remarked that Frenchmen went too fast in proclaiming that these isolated trials sounded the knell of the battleships.

He nevertheless believed the submarine boat to be a real element in naval war because the very fear of its invisible attack would keep at a distance adversaries who might have an object in approaching the coasts.

So great was the interest taken in France in submarine boats that the Matin opened a “Patriotic Subscription Fund” in 1898, to raise money for building submarine boats of the Gustave Zédé type. The journal itself headed the list with a subscription of 5,000 francs. In a long article the Matin dwelt on the utility of these engines of warfare, and asked the French public to furnish the funds necessary for the construction of at least one more Gustave Zédé. It urged the Government to build a fleet of these boats as an effectual protection for the French ports and the harbours of the French Colonies, against the most powerful navies of the world.

The result of the opening of the fund was that two submarines were presented to the nation—the Français and the Algerien—and the sum of 300,000 francs, mostly in small sums, was contributed by the French nation for these vessels.

The history of the Gustave Zédé shows how much in earnest the French were in the matter of submarines. When it was first launched it was a distinct failure in almost every respect, and it was only after some years during which many alterations and improvements were carried out, that she became a serviceable craft. At first nothing would induce the Gustave Zédé to quit the surface, and when at last she did plunge she did it so effectually that she went down to the bottom in 10 fathoms of water at an angle of 30°. The Committee of Engineers were on board at the time, and it speaks well for their patriotism that they did not as a result of their unpleasant experiences condemn the Gustave Zédé, and advise the Government to spend no more money over these monsters of the deep.

Before the Gustave Zédé was completed M. Romazzotti prepared designs for a smaller submarine, which should be intermediary between the Gymnote, displacing 30 tons, and the Gustave Zédé of 266 tons.

This vessel, the Morse, is 118 feet long, 9 feet beam, 8 feet 3 inches diameter, is made of “Roma” bronze, and displaces 146 tons. Amidships is a circular conning tower rising about 18 in. from the top of the boat.

The sole motive power, as in the Gustave Zédé and the Gymnote, is electricity. The motor is of the Thury type, and develops 350 h.p., rotating the screw at 250 revolutions a minute. The current is derived from a battery of accumulators by the Société anonyme pour le Travail Electrique des Métaux. It is claimed that a means of recharging the batteries while at sea has been discovered; it is described as being a “combination of motors,” doubtless an intentionally vague description of a method which seems to be like an attempt to solve the impossible problem of creating energy.

The Morse is submerged and steered in the same way as the Gustave Zédé in her most improved form. Water is admitted into three separate compartments until a certain amount of buoyancy has been overcome, and the boat is then steered below the surface by her horizontal rudders. A false keel of lead can be detached if necessary from the inside.

The armament consists of a bow torpedo tube and two special carriers on the side, each holding one torpedo. Her crew consists of a commander and 8 men, and her range of action is 150 miles.

Although the Morse was taken in hand many years previously she was not launched until the 5th of July, 1899. One of the reasons for this delay was the question whether an oil engine should be fitted in the vessel for surface navigation. She has cost in all 648,000 francs.

294The Morse is steered on the surface and awash from the conning tower, and underneath by means of a periscope that rises above the surface and allows (theoretically) of her seeing everything at a depth of 20 feet. In fine weather the periscope reflects everything within its field of vision, and can be turned round so as to cover the whole horizon.

The French naval authorities believe that they have in the Morse a vessel which fulfils all the conditions of coast defence torpedo-boats, with the further advantage of invisibility, which makes it a specially dangerous weapon of attack upon hostile vessels in day-time.

Early in January, 1901, the French Minister of War visited Cherbourg and went for a trip in the Morse.

Although a considerable sea was running outside the harbour the submarine rolled very slightly. The operation of submerging took but two minutes. During the voyage four torpedoes were fired, and each was said to run straight and true.

“The feeling experienced,” says a writer in the Temps, “at the moment the vessel is making her descent is most peculiar; it is one of expectancy, but nothing happens, one is astonished at the quiet, the absolute calm, there is no movement, not even a tremble, the waves wash overhead without causing the least vibration, the motor works silently, and the vessel glides through the water without causing any bow wave or leaving any track. Above, the voice of the captain is heard, who, standing by the periscope, gives his orders for so many degrees of helm and so many revolutions of the engine. The little vessel is now almost in equilibrium, and would sink deeper or rise to the surface were it not for the ‘ailettes’ on each side which serve to prevent this. Before an instrument which indicates the depth stands a petty officer with his eye fixed and his attention concentrated on the pointer, and by turning a wheel he causes the ‘ailettes’ to act so as to maintain the vessel at the required depth. Should she for any 295reason continue to descend or refuse to ascend, a pig of lead ballast can be detached which would cause her immediately to rise to the surface, but after this the buoyancy would be so much increased that she could no longer be submerged even with all her ballast tanks full. Orders had been given to remain a quarter of an hour under water, and at the expiration of the time pumps are set in motion and the water is forced out of the ballast tanks (situated forward, aft, and amidships) and the Morse commences to rise, the conning tower and the small platform emerge, and the man-holes are opened. No commotion takes place at the entering of the external air and no inconvenience has been felt by those on board during the dive, the act of breathing being as free and regular as in the open air.

“Trials to ascertain the habitability of the Morse had already been made, and she has remained for eight hours under water, the crew experiencing no difficulty in breathing and no buzzing sensation in the ears, no excitation or inconvenience of any sort, and it was considered they could have remained double the time if necessary, the chemical analysis of the air showing also that it would have been possible to considerably prolong the trial if required.”

M. Calmette, of the Figaro, who accompanied General André on the trial trip of the Morse, sent to his journal a long account of his experiences during the two hours which the trial lasted. He said the defect of the Morse lay in the fact that the motive power was supplied by electric accumulators, the premature exhaustion of which might deprive the vessel of all means of action. A combination had, however, been effected, which enabled accumulators to be recharged on the spot. This system would be utilised on the submarines Français and Algerien. As was already known, the commander directed the navigation of the vessel by means of a periscope, the extremity of which, resting on the surface, gave him—no matter at what depth—an absolutely faithful and 296distinct image of all that was taking place on the surface. The immersion was effected easily and without shock, in exactly seventy seconds. Breathing in a submarine was as easy as in an ordinary room. The vessel could remain in the water for sixteen hours without inconvenience to the occupants, and could rise to the surface very rapidly. The correspondent went on to say that after the trial the Morse, in conjunction with the Narval, went through a series of manœuvres lasting eight hours. The Morse discharged a torpedo with remarkable precision by a process which was a profound secret.

M. Calmette’s account furnishes interesting reading. He says:—

“General André, Dr. Vincent, a naval doctor, and I enter the submarine boat Morse through the narrow opening in the upper surface of the boat. Our excursion is to begin immediately; in two hours we are to come to the surface of the water again three miles to the north to rejoin the Narval. Turning to the crew, every man of which is at his post, the commandant gives his orders, dwelling with emphasis on each word. A sailor repeats his orders one by one, and all is silent. The Morse had already started on its mysterious voyage, but is skimming along the surface until outside the port in order to avoid the numerous craft in the Arsenal. To say that at this moment, which I had so keenly anticipated, I did not have the tremor which comes from contact with the unknown would be beside the truth. On the other hand, calm and imperturbable, but keenly curious as to this novel form of navigation, General André had already taken his place near the commandant on a folding seat. There are no chairs in this long tube in which we are imprisoned. Everything is arranged for the crew alone, with an eye to serious action. Moreover, the Minister of War is too tall to stand upright beneath the iron ceiling, and in any case it would be impossible to walk about.

“The only free space is a narrow passage, 60 centimetres 297broad, less than two metres high, and 30 metres long, divided into three equal sections. In the first, in the forefront of the tube, repose the torpedoes, with the machine for launching them, which at a distance of from 500 to 600 metres are bound to sink, with the present secret processes, the largest of ironclads. In the second section are the electric accumulators which give the light and power. In the third, near the screw, is the electric motor which transforms into movement the current of the accumulators. Under all this, beneath the floor, from end to end, are immense water ballasts, which can be emptied or filled in a few seconds by electric machines, in order to carry the vessel up or down. Finally, in the centre of the tube, dominating these three sections, which the electric light inundates, and which no partition divides, the navigating lieutenant stands on the look-out giving his orders.

“There is but one thing which could destroy in a second all the sources of authority, initiative, and responsibility in this officer. That is the failure of the accumulators. Were the electricity to fail everything would come to a stop. Darkness would overtake the boat and imprison it for ever in the water. To avoid any such disaster there have been arranged, it is true, outside the tube and low down a series of lead blades which can be removed from within to lighten the vessel. But admitting that the plunger would return to the surface, the boat would float hither and thither, and at all events lose all its properties as a submarine vessel. To avoid any such disaster a combination of motors has been in course of construction for some months, so that the accumulators may be loaded afresh on the spot, in case of their being used up. I betray no secret in stating that this new scheme is already completed, and the next submarine vessels, the Français, the Algerien, and the Matin, will be fitted with the result.

“The Morse, after skimming along the surface of the water until outside the port, is now about to sink. The commandant’s 298place is no longer in the helmet or kiosque whence he can direct the route along the surface of the sea. His place is henceforth in the very centre of the tube, in the midst of all sorts of electric manipulators, his eyes continually fixed on a mysterious optical apparatus, the periscope. The other extremity of this instrument floats on the surface of the water, and whatever the depth of the plunge it gives him a perfectly faithful and clear representation, as in a camera, of everything occurring on the water.

“The most interesting moment of all now comes. I hasten to the little opening to get the impression of total immersion. The lieutenant by the marine chart verifies the depths. The casks of water are filled and our supply of air is thereby renewed from their stores of surplus air. In our tiny observatory, where General André stations himself above me, a most unexpected spectacle presents itself as the boat is immersed.

“The plunge is so gentle that in the perfect silence of the waters one does not perceive the process of descent, and there is only an instrument capable of indicating, by a needle, the depth to which the Morse is penetrating. The vessel is advancing while at the same time it descends, but there is no sensation of either advance or roll. As to respiration, it is as perfect as in any room. M. de Lanessan, who since entering office has ordered eight more submarine vessels, has concerned himself with the question as a medical man also, and, thanks to the labours of a commission formed by him, the difficulties of respiration are entirely solved. The crew can remain under water sixteen hours without the slightest strain. Our excursion on this occasion lasted scarcely two hours. Towards noon, by means of the mysterious periscope, which, always invisible, floats on the surface and brings to the vessel below a reflection of all that passes up above, the captain shows us the Narval, which has just emerged with its two flags near the old battery Impregnable. From the depths in which we are sailing we 299watch its slightest manœuvres, until the admiral’s flag, waving on the top of a fort, reminds us that it is time to return.”

Français and Algerien.

Two sister vessels, submarines proper, the Français and the Algerien, designed by M. Romazzotti, were laid down at Cherbourg in 1900. They were built with the proceeds of a subscription opened by the Matin at the time of the Fashoda dispute. They are almost identical with the Morse, though in some respects they are improvements on their prototype. They are built of steel, and the sole motive power is electricity. The cost of each is £32,972. The Français was launched on January 29, 1901, and the Algerien on February 15, 1901.

Farfadet Class.

The Farfadet class, designed by M. Maugas, consists of four submarines all laid down simultaneously at Cherbourg on September 27, 1899, viz., Farfadet, Gnome, Korrigan, and Lutin.

In size they are between the Gustave Zédé and the Morse, the measurements being—length 135 feet 8 inches, beam and also draught 9½ feet, displacement 185 tons. Each has a single screw, and the sole motive power is electricity, supplied by accumulators. On the surface the speed is 12·25, and submerged 9 knots. The complement is a lieutenant and eight men. The hull is of steel and not of Roma metal, like the Gustave Zédé and the Morse. The armament consists of four torpedoes carried on the exterior of the vessel.

The cost of each of the Farfadet class is about £32,000. The Farfadet was launched on May 17, 1901, and the Korrigan on February 2, 1902.

The Perle Class.

The Budget of 1901 made provision for 23 submarines, 20 of the “defensive,” 3 of the “offensive” class.

300The names of the 20 defensive boats are: (1) Perle; (2) Bonite; (3) Esturgeon; (4) Thon; (5) Souffleur; (6) Anguille; (7) Alose; (8) Dorade; (9) Truite; (10) Grondin; (11) Naiäde; (12) Protée; (13) Lynx; (14) Ludion; (15) Loutre; (16) Castor; (17) Phoque; (18) Otarie; (19) Méduse; (20) Oursin.

All these twenty boats (which were laid down in 1901) will be constructed of steel, will have a displacement of 68 tons, a length of 77 feet, a beam of 7½ feet, and draught 8 feet.

The sole motive power will be electricity supplied by accumulators, and the motor will actuate a single screw.

The maximum speed will be 8 knots, and their crew will consist of an officer and four men. The price of each is £14,616, which is less than any previous submarine boat.

Of these twenty vessels five are building at Cherbourg, six at Rochefort, and the rest at Toulon. They are to unite all the best points of the existing vessels, and are intended primarily for harbour and coast defence.

The Narval Class.

In February, 1896, M. Lockroy, Minister of Marine, acting in conjunction with M. Bertin, Director of Material, invited designs for a submarine torpedo-boat from Frenchmen and foreigners. The commission appointed to examine the various projects decided in favour of the one sent in by M. Laubeuf. This decision was approved by the Minister, who ordered the construction of the vessel to be taken in hand, and awarded a gold medal to its inventor.

The Narval was commenced at Cherbourg in 1897, and launched on October 26, 1899, but it was not until certain 301modifications had been made that it was considered to be (in 1900) in a satisfactory condition to run her trials.

While the Gymnote, the Gustave Zédé, and the Morse rely solely on electricity for their motive power, the Narval can navigate in three different ways.

1. As an ordinary torpedo-boat, with water, ballast tanks empty.

2. Awash, with the dome and chimney alone above the waves, carrying a certain amount of ballast.

3. Entirely submerged with tanks full of water.

Some French writers have divided under-water craft into three classes. The first is the “Submersible”: this type is represented by the Mute of Fulton, the Stromboli, the Spuyten Duyvil, the Porter, &c. Such boats are never completely submerged, but only take in sufficient ballast to keep their decks flush with the water.

The second is the “Sous-Marin”: this type, represented by the Gymnote, Gustave Zédé, and Morse, has no sphere of action except as a totally submerged craft.

The third is the “Sous-Marin autonome à grand rayon d’action,” and is represented by the Narval type of vessel. They can be used both as ordinary torpedo-boats or submarines. We have in our classifications adopted the terms “submarine” and “submersible.”

In designing the Narval M. Laubeuf aimed at producing a disappearing vessel, which should correspond with the sea-going torpedo-boat in the same way as the Morse is partly designed to replace the torpedo-boat for coast defence.

The Narval possesses various radii of action.

302The hull of the Narval is peculiar, being double. The interior hull is of thick steel sheets: it has a circular section, and ends in a point at its two extremities. The outer hull which envelopes it is of thin sheets; its form is that of the Gustave Zédé. The external hull is pierced with holes above and below, and at the two ends, and the sea water circulates freely between the two hulls, which allows the ship to receive a hail of small projectiles without suffering from them, the rents in its outer hull making no change in its situation.

The boat is brought to the awash condition by taking in water ballast and is steered below the surface by four horizontal float-board rudders, arranged systematically on each side of the ship, two towards the bows and two towards the stern. These “dip-rudders” are manipulated by means of a hand-wheel placed at the centre of the ship.

The Narval is not cylindrical in shape like the Morse, and her upper works are flat and form a deck.

The principal dimensions of the Narval are as follows:—

The motive power on the surface is supplied by a triple-expansion steam engine of 250 horse-power constructed by Messrs. Brule and Co. It has a water-tube boiler of the Seigle type having five injectors for stoking with heavy petroleum.

In the original project the boat was to have been propelled on the surface by steam machinery of 300 i.h.p., the stoking being with compressed coal, but it was afterwards decided to supply liquid fuel.

Submerged the motive power is an electro-motor, the current being supplied by 158 accumulators of the Fulmen type, which can be recharged by the motor, worked as a dynamo by the petroleum motor.

303Before going below the chimney is to be unshipped and all the openings are hermetically closed. Sufficient time is allowed for the motor to cool and for the air to be cleared of the hot gases. The steam engine has to be replaced by the electric motor and water ballast has to be pumped in.

At first these operations took at least a quarter of an hour, but the newer vessels of the Narval class are said to be able to disappear beneath the waves in some five moments only.

Photo by] [M. Bar

THE “NARVAL.”

The armament consists of four 17½ inch Whitehead torpedoes, and there are two Drzewiecki torpedo tubes on each side and towards the upper part of the boat, which launch the torpedoes in the direction of the beam.

“As long ago as 1893,” says a French writer, “Mr. Drzewiecki invented a method of firing a torpedo which is quite different from the torpedo tubes commonly used, and which is, therefore, peculiarly suited for submarine vessels. By it the torpedo could be fired at any angle from 30 to 304120 degrees from the bow, and experiments with it were carried out in 1894 at Cherbourg. The system may be briefly explained as follows: At the side of the boat a horizontal spar is placed, which works on a hinge at an angle to the bow. The torpedo is fastened to this spar by two pairs of clamps, and when not in use lies along the side of the boat in a recess cut in the side. A swing-out rod, fastened at one end to the spar and at the other to the boat, enables the desired angle for firing to be obtained. A lever worked from inside the vessel pushes the spar and the torpedo away from the side of the boat, and the pressure of the water stiffens the swing-out rod, and by so doing frees the torpedo from the clamps, and opens the air lever which sets the torpedo in motion. It is, therefore, necessary that the vessel should be under way when the torpedo is fired.

“The principle of the invention is very simple, and at the same time very ingenious; and the experiments which were made at Cherbourg proved that torpedoes could be fired by this system with perfect precision. Since 1894 Mr. Drzewiecki has made alterations in his invention. For example, he has done away with the spar and the clamps, and by so doing has greatly lightened his apparatus. The tail of the torpedo is now seized by two claws, which grip it firmly and hold it in position. The contrivance is placed on the deck of the submarine boat, which is not submerged except on going into action. The torpedo rests on cushions fixed to the deck, with its axis parallel to that of the boat, but as soon as it is moved by a lever to the position for firing, the water pressing against it frees the torpedo by opening the air valve. The only inconvenience of the system is that it is not easy to fire at the exact angle required, but it has the great advantage of doing away with all the machinery of valves and safety appliances which are necessary when submerged tubes are employed. Further experiments will doubtless make the system still more efficacious.”

305Commenting on the Narval class a writer in the Temps said:—

“Their range of action will be large, they will be self-controlling, and they will realise Admiral Aube’s theory of the empire of the sea, invisibility, divisibility and number. The estimate for each is 600,000 francs, which is not one-fortieth of the cost of a battleship. Are not the Mediterranean experiments calculated to lead to changes in our naval construction, and would not the present situation justify the devotion of all the efforts of the dockyards to submarine torpedo-boats without stopping the programme now in progress?”

THE “NARVAL” AS A SURFACE TORPEDO-BOAT.

On the 6th of January, 1901, M. de Lanessan, Minister of Marine, and General André, Minister of War, visited Cherbourg to witness comparative trials between the two submarine vessels, Morse and Narval, with a view to determining the relative merits of the two systems for guidance in the construction of the new under-water vessels provided in the programme for 1901.

Before embarking the Minister inspected the crews, who 306wear ordinary uniform with the addition of a red cap ribbon bearing the words “Sous-Marins.”

M. Calmette, who was allowed to accompany the Minister during the trial, wrote:—

“The submerging of the Narval is a rather delicate operation: the motive power has to be changed, the funnel, &c., have to be drawn in, sufficient time must be allowed for the unused steam to cool down, and a much greater quantity of water than in the case of the Morse has to be introduced into the ballast tank to overcome her buoyancy. Great progress has been made in these respects since her first trial, and the operation of submerging has been much accelerated, but it still takes considerably longer than in the case of the Morse. On the present occasion submergence was effected in a quarter of an hour, and when submerged the only thing visible above the water is the periscope.”

In May, 1901, the Narval made a voyage from Cherbourg to St. Malo.

The Figaro declared that the trip was completely successful. “The Minister of Marine had ordered a cruise of forty consecutive hours. The Narval left Cherbourg at 1 o’clock in the afternoon of May 23rd, in a very heavy sea, caused by strong north-easterly gale. She returned to St. Malo on the Saturday at 5 o’clock in the morning. That was the sole departure from her programme. The Narval had been navigated for 40 hours without stopping, covering 260 miles at an average speed of 6½ knots in a very rough sea. During the trip the Narval remained below the surface for several hours at a time, and twice recharged her accumulators. On Sunday she left St. Malo, without taking in fresh provisions, and made Cherbourg. On her arrival there she made excellent practice with her four torpedoes. It was proved that the torpedo mechanism, regulated five days previously, had not been in the least put out of order by the trial. During the return voyage to Cherbourg the Narval had an accident to her pump, and was towed for three 307hours by the t.b. Zouave. The damage was repaired, and the submarine returned with her own motive power. It has to be pointed out, however, that the crew suffered greatly from discomfort. When fresh trials are conducted everything will be done to remedy the defects which have been reported.” The Figaro, in conclusion, protested against the decision of the Ministry of Marine to build henceforth vessels of 68 tons burden and with a radius of action of 100 miles only, pointing out that such boats can only be used for defensive purposes, whereas if the tonnage were increased the radius of action and the accommodation would also be increased, and the submarine could be employed offensively. On the other hand, the Petit Parisien said that the results of the recent trial of the Narval for 48 hours were not satisfactory. “The navigation of the vessel on the surface was defective and difficult, and she sustained an accident, in consequence of which she had to be towed back to port. The crew were suffering from exhaustion and nausea, the cause of which it is impossible to explain.”

THE “NARVAL” IN THE “AWASH” CONDITION.

308The Narval in June, 1901, made the experiment of remaining for twelve hours under water.

The Ministry of Marine were represented by Naval Surgeon Gibrat, who wrote a full and detailed report on the condition of the crew after their twelve hours’ submersion.

From notices published in the French papers it would appear that “the trial succeeded without incident,” but the impression seems to be general that the crew were in a more or less exhausted condition after their prolonged sojourn beneath the waves, which after all is not to be wondered at.

It appears that after six hours under water the inhaling of artificial air became difficult; the long exclusion of natural atmosphere caused a painful irritation of the nerve centres which even the coolest of the officers could not resist, and anæmia set in accompanied by cerebral compression and sick headache. Trouble was also caused by the working of the accumulators, which liberated among the crew salts of lead and sulphur, causing digestive and intestinal complaints. Dr. Gibrat is reported to have expressed to them that, in the present condition of knowledge, 12 hours is the outside limit of efficient work on a submarine under water.

The Narval class, besides the eponymous vessel, comprises four other submersibles—the Sirène (launched May 4, 1901), the Triton (launched July 13, 1901), the Espadon (launched August 31, 1901), and the Silure (launched October 29, 1901). These four resemble the Narval in most particulars, though in some respects they are improvements on their prototype.

The outer hull of each is made of steel, but the inner hull is made of nickel steel. The choice of the metal is a matter of importance, for the difficulty is to build a hull which possesses sufficient strength to resist the pressure of the water, and yet at the same time is not too expensive. Between the two hulls in the interior of the vessel are seven compartments for water ballast. There are also four water tanks, which are used to 309regulate the trim of the vessel by introducing water at the last moment.

The inconvenient points of the Sirène and her sister vessels are the same as those of the Narval. A few minutes are sufficient to fill the water-ballast compartments, but, according to a recent article in La Patrie, it takes a good half-hour to empty them in order to rise to the surface. The operation is begun with compressed air, and continued with a pump worked by electricity. For steaming on the surface of the sea the Sirène uses a triple-expansion engine and a Normand boiler heated by petroleum. For submarine navigation she uses two dynamos connected with the main shaft. These dynamos recharge the accumulators, which are on the Laurent Cely system, in less than 7 hours. The vessel can steam on the surface 21 hours at 12 knots with the petroleum engine, and 625 miles at 8 knots. Under water, making use of the accumulators, she can do 25 miles at 8 knots, or 70 miles at 5 knots. Her armament consists of four torpedoes 17¾ inches in diameter, which are fired by the Drzewiecki system. As the torpedoes are placed on the deck, the vessel must be under the water in order that they may be fired. The crew consists of twelve men, including the lieutenant commander and his sub-lieutenant.

The Sirène recently underwent a 24 hours’ trial at Cherbourg. Twenty hours were devoted to evolutions on the surface, and the remaining four hours spent under water.

The Sirène afterwards carried out successful experiments in discharging torpedoes. “The Sirène,” said the Petit Journal, “is at present the most perfect of the submarines. She possesses rapidity of submersion (the time being five minutes), perfect stability and habitability, wide radius of action, and a powerful armament. In a word, she is the true type of an independent submarine capable of acting on the offensive.”

The Triton made a trial trip at Cherbourg in October, 1901. Though the sea was rough, she totally submerged herself in 6½ minutes, and remained under water for an hour and a half.

310The Espadon made her trial plunge on October 18, 1901. She took 8 minutes to sink to a depth of 26 feet, and she remained submerged for 2½ hours.

The cost of the Sirène was £32,000, of the Triton £21,700.

Of the three “offensive” boats provided for in the Budget of 1901 the first, Q 35, is to be built at Cherbourg, after the plans of M. Romazzotti, the builder of the Gustave Zédé and the Morse. Her cost is estimated at 19,592 francs.

The second, Q 36, is to be built at Rochefort to the designs of M. Maugas, the designer of the Farfadet class, and her cost will be 31,973 francs.

The third, Q 37, will be built at Toulon, after the designs of M. Bertin, Director of the Technical Section of Naval Construction, her cost being put down as 36,970 francs.

Up to the time of writing the Department of Construction has refused to divulge the characteristics of these three boats, and has confined itself to mentioning their cost and the name of the designers.

It has been stated in some of the French service journals that Q 37 will be driven on the surface by an alcohol motor, and submerged by compressed air in place of accumulators.

No submarine boats are to be laid down in France in 1902.

In 1903, 13 will be laid down, and by the close of the year 37 are expected to be in commission. By the year 1906 France should be in possession of a submarine flotilla numbering 68 vessels.

Q 38–42 and Q 61–68 are to be built at Toulon, Q 43–50 at Rochefort, and Q 51–60 at Cherbourg.

Of these 31 boats it has been stated that 8 will be submersibles with a double motive power, i.e., a vapour or gas engine and electric accumulators. They are to have a radius of action a little more extended than that of the submarine proper, and will plunge more rapidly than the Narval and Sirène, which have to fill the ballast tanks between the hulls.

To give some description, even of the briefest nature, of every submarine boat that has ever been constructed would necessitate a volume three or four times the size of the present work. There are, however, a few vessels that demand some notice here.

The first inventor to propose a mode of propulsion other than by hand-operated mechanism, was Dr. Payerne, who in the fifties proposed a boat which was propelled by a screw driven by a steam engine, furnished with two boilers, an ordinary boiler-furnished steam for surface navigation; whilst the other, which he termed a “chaudière pyrotechnique,” for use beneath the waves, was so arranged as to burn in hermetically closed furnaces a combustible containing in itself the oxygen necessary for its combustion. The products of combustion escaped by raising a plug so devised as to prevent water entering the fire-box. The combustibles to which Dr. Payerne gave preference were:—

The boat was known by the name of L’Hydrostat; but, as its inventors were not able to work out their ideas satisfactorily, it 312was turned into an ordinary diving-bell, and used for submarine excavations at Cherbourg and at Brest.

In 1861 Olivier Riou built two models, one driven by steam (generated by the heat of ether in combustion), and the other by electricity derived from batteries. This is the first occasion that we find electricity requisitioned for the propulsion of an under-water vessel.

The submarine of Mr. Alstitt, constructed in 1863 at Mobile, in the U.S.A., possesses a great interest in that it was the first to be fitted with two modes of propulsion; the one for navigation on the surface, the other beneath.

The Plongeur, invented by Captain Bourgois and M. Brun, and built at Rochefort in 1863, was the most ambitious attempt that had up till then been made to solve the problem of submarine navigation. It was driven by an 80 h.p. compressed-air engine, and underwent numerous trials; these did not satisfy the officials, and it was eventually converted into a water tank. The armament of the Plongeur was a spar-torpedo.

In 1869 Dr. J. A. Lacomme submitted to Napoleon III. a project for a submarine railway across the Channel. Rails were to be laid on the floor of the ocean, and in the event of an accident the submarine car, by reason of its reserve of floatability, could detach itself from the track and rise to the surface. M. Goubet has since proposed a similar “submarine ferry.”

The Intelligent Whale was built at Newark in 1872 from the designs of Mr. Halstead. Its novel features were two doors in the bottom through which divers could leave the boat when submerged. On one occasion the boat went down in 16 feet of water and General Sweeney, clad in a diver’s suit, passed out through the bottom manhole, placed a torpedo under a scow anchored there for the purpose, and after entering the boat and moving away to a safe distance, 313exploded the torpedo by a lanyard and friction primer, and blew the scow to pieces.

During the siege of Paris, André Constantin, a lieutenant in the French navy, built a vessel which was submerged on an entirely novel principle. Instead of admitting water to sink his boat he immersed it by the drawing in of pistons working in cylinders.

The Russian inventor, Drzewiecki, built a vessel at Odessa in 1877, which had two methods of submersion. Whilst in motion a system of sliding weights inclined the boat either upwards or downwards. To regain the horizontal position the weights were brought to the centre. When at rest submersion was obtained by the introduction of water into a central reservoir.

The Nautilus of these inventors was submerged on the same principle as the boat of André Constantin, viz., by the drawing in of cylinders. The submersion was effected by means of four-cylinders on each side of the vessel, which were drawn in flush and pushed out beyond the side, thus altering the displacement. The Nautilus underwent some trials in Tilbury Docks in 1888, and the following account is from the pen of Mr. Bennett Burleigh: “A few years ago a gentleman invited a number of officials and specialists down to one of the London docks to see a new submarine boat, which, like so many gone before, was to achieve marvels. There were naval men and military men, and journalists there by the score. Among others were the present chief-instructor of the navy, Sir W. H. White, and Lord Charles Beresford. The writer was on board, but felt a strong natural disinclination to go below or permit any of his friends to adventure. It possibly was an excess of natural timidity. That craft was warranted ‘extra special safe.’ She had water tanks, a false keel that could be slipped off, and cylinders or drums which, pushed out or drawn in from her sides, added or took away from her displacement and buoyancy. Charming in 314theory, but hydrostatics present strange problems, so note the result. The boat, with Sir W. H. White on board, having made all tight, let water into her tanks, and sank into the profound oleaginous mud of the dock. She remained invisible beneath for a protracted period, greater, in truth, than those upon the dock knew was safe, for she had no air or oxygen storage. We could do nothing but wait and look at our watches. Finally, to everybody’s intense relief, she reappeared. It happened that the boat stuck in the mud, and neither sending out the drums nor unloading the tanks made her rise. Sir William White suggested, when the light was turning blue, as were some faces, moving the crew to the higher end of the craft. It had the desired effect, the boat was lifted from the grip of the mud. Once on top, the engineer undid the manhole and shouted with elation to his friends ashore that they were going down again. Several of the visitors had had more than enough, and the gentleman was pulled down by the legs to make way for those who wished to escape upon deck and reach terra firma. That ‘famous’ submarine craft also followed the course of its predecessors, and shortly after passed into the limbo of forgotten failures.”

It appears that the cylinders declined to out-thrust because the power for working them, though amply sufficient for working in water, was not great enough to drive them into mud, and the inventors had not taken into consideration the adhesiveness of mud.

Mr. J. H. Waddington claimed that his vessel the Porpoise (1886) was the first practical submarine to be propelled by electricity. The electric motor was worked by 45 accumulators of 660 ampere-hours capacity; the maximum current taken by the motor was 66 amperes, the e.m.f. being 90 volts, giving an electrical h.p. of 7·96. The speed was to be 8 miles an hour.

315

THE “PERAL”: SPAIN’S ONLY SUBMARINE.

This vessel was named after its designer Don Isaac Peral, a Spanish lieutenant, on whom, in reward for his labours, the Spanish Government conferred titles of nobility and an indemnity of 500,000 francs. It was constructed at the Arsenal of Caraca, and launched on October 23, 1887. It measured 72 feet from stem to stern, and was 9 feet in beam. The motive power was furnished by two electric motors of 30 h.p. each driving two screws; 600 accumulators supplied the power for all purposes. During its trials in 1889 the Peral was ordered to proceed to sea to blow up an old hull placed at a distance of some two or three miles from shore in Cadiz Bay, running a long distance under water in search of the supposed ironclad. The boat was subsequently reported to have successfully accomplished this feat, and, as a consequence, the Spanish Government would, it was said, order several vessels of this type for the defence of the coasts of the Peninsula. A public subscription was started in Spain. For a time great enthusiasm prevailed, but as Spain made no use of the Peral during the Spanish-American War it may be presumed that the interest in under-water vessels soon died out. On the 28th of June, 1890, a night attack was made by the Peral against the cruiser Colon. The latter, in spite of its powerful electrical projectors, failed to pick out the submarine, which advanced within 10 metres of the cruiser to discharge its 316torpedo. During the year 1898 several accounts appeared in the papers relating to a wonderful submarine which the Spanish Government was said to have purchased. It consisted of a large steel sphere, so solidly constructed that it could resist the pressure of the water no matter at how great a depth. Its exterior diameter was 9 feet 9 inches, and the shell measured 4 inches in thickness. It weighed 10 tons, and contained sufficient air for a crew of three for 48 hours. Electric accumulators drove it at a speed of 4 to 5 knots. It was suggested that the submarine might be connected by an electric cable with a battleship and a cruiser, thus enabling them to steer a safe course through a channel laid with mines.

A “cutter” was fixed in the bows to destroy submarine cables of all kinds.

M. Goubet has built several submarine boats. Goubet I. was built at Paris in 1888, and like all the vessels designed by this inventor, its weight when submerged equals the weight of the water it displaces. To prevent it diving to the bottom or rising to the surface, water is automatically pumped from the forward to the after tank, or vice versâ. The sole motive power of all the Goubet boats is electricity. Goubet I. was only 16 feet long and displaced one ton. The crew consisted of two men, who sat back to back on a case containing all the machinery and the air reservoirs. The armament was a torpedo carried on the outside of the hull and released from the interior. By its reserve of buoyancy it rose until it caught on to the enemy’s bottom by spikes; it was then exploded electrically.

Goubet II. was 26 feet long, but its speed was only some 5½ knots. In February, 1901, she underwent some trials in France. According to the Echo de Paris the results were very poor. Her extreme radius was 25 miles, her greatest speed less than 4 knots, and she never succeeded in launching a torpedo. In some books of reference it is stated that 300 Goubet boats were ordered by the Russian Government in 3171881, and that 50 had been delivered by 1883, but it is very doubtful if Russia has a single Goubet boat at the present day capable of being used in the event of war. Brazil is also said to be a possessor of some boats designed by M. Goubet, who a few weeks ago was reported to have sold his patents to a British company.

The Italian navy is credited with possessing at least two submarines, the Audace and the Delfino. The latter cost £12,000, and is cigar-shaped and of steel. Its length is about 78 feet, and its diameter 9 feet. When wholly immersed its displacement is about 107 tons. The motive power is an electric battery of 300 accumulators. It is propelled by a screw, while above are two smaller screws by which the vessel is immersed or raised. Its armament consists of two torpedo tubes in the bow. The provision of air is sufficient for a crew of 12 men for a period of seven to eight hours.^[12]

It has often been stated that the Russian Government some years since ordered 300 Goubet submarines, the hulls to be built in Russia, and the engines and mechanism to come from France. Whether any of these are to-day possessed by Russia is very doubtful.

Last year the construction of a submarine boat, designed by Lieutenant Kolbassieff and Naval Engineer Konteinikoff, was begun at Cronstadt. She is cigar-shaped with a piece cut-away along the upper part. On the sides forward there are blades which are used in sinking or raising the boat.

Six more submarines are said to be building at Cronstadt. Most of the reports of these are mythical, more especially that which credits one of these, “a vessel which combines in itself the properties of a submarine and an ordinary warship,” with a speed of “60 knots on the surface and 30 knots submerged.”

Señor Mello Marques, formerly of the Brazilian navy, has 318invented a new type of submarine boat, which was tried last year as a model in a tank in the presence of the President of the Republic, the Minister of Marine, and others. The propelling power appears to be electricity solely. It is stated that the Government has decided to have a larger boat built for the final trials.

Experiments have been carried out during the past few years with submarines in Germany, but few details are obtainable. A boat designed by an ex-lieutenant of the German navy was built to the order of the Cyclops Company, Messrs. Schwartzkopff and Messrs. Howaldt, in the yards of the last-named firm. It has been stated that this boat has made 16·5 knots on the surface and 9·5 beneath.

As some Norwegian naval officers were present at the trials of the Fulton last autumn, it is thought possible that Norway will shortly acquire one or more of the Holland type. Admiral Borreseu is reported to have asked for £35,000 for this purpose.

Mr. Euroth, a Swedish engineer, has offered a submarine to the Swedish Government. Its dimensions are—length, 82 feet; beam, 13 feet; diameter, 11½ feet; displacement (light), 142 tons; (submerged) 146 tons; engines 100 h.p., supplied by two boilers heated by oil; speed 12 knots surface and 6 submerged. The boilers do no function when the boat is submerged, the engines being then partly driven by the steam already generated, and partly by compressed air stored fore and aft.

In October last trials were made with a model of a new submarine invented by Lieutenant Foutes, who designed the Plongeur, built in Portugal, and tried in 1892.

The Right Rev. John Wilkins, from whose book “Mathematical Magick” some extracts have been given, was far-seeing enough to predict that a submarine vessel would prove of great value in the discovery of submarine treasures, “not only,” as he expressed it, “in regard of what hath been drowned by wreck, but the several precious things that grow there, as pearl, coral, mines, with innumerable other things of great value, which may be much more easily found out and fetched up by the help of this, than by any other usual way of the Urinators.” Could newspapers and magazines but find their way to the shades, Dr. Wilkins would be enchanted to find that his dream has been realised, and that a vessel has actually been constructed for the purpose of harvesting some of the treasures of the deep.

The Argonaut, designed by Mr. Simon Lake, of Baltimore, is a vessel which rolls along the floor of the ocean as a carriage rolls along the highway. In this it differs from any other under-water craft either projected or constructed, for all previous inventors have attempted to navigate their boats between the surface and the bottom. In the invention of this type of submarine boat Mr. Lake elaborated an idea which the United States Patent Office described to be absolutely original, and the Argonaut has undoubtedly done things that no other vessel has before accomplished.

320Mr. Lake built his first experimental submarine boat, the Argonaut Junior, in 1894. After several successful descents she was abandoned, and now lies at Atlantic Highlands, half buried in the sand. Her dimensions were: length, 14 feet, beam 4½ feet, depth 5 feet. Argonaut No. 2 was a much bigger boat, and proved that Mr. Lake’s theories were substantially correct. She is 36 feet long. Her diameter amidships is 9 feet; her displacement when entirely submerged is about 59 tons; her draught when at the surface is 10 feet, and when submerged 15 feet. She is built of steel plates ⅜ inch in thickness, and double-riveted over strong steel frames. She is provided with a 30 h.p. “White and Middleton” gasoline engine, which propels her both on the surface and while submerged, and runs all the auxiliary machinery. She has two Mannesmann steel reservoirs for the storage of compressed air, which have been tested to a pressure of 4,000 lbs. per square inch. She is provided with air compressors, water-ballast pumps, and hoisting machinery for raising or lowering her two down-haul weights. She is lighted by incandescent electric lamps throughout, and carries a 4,000 candle-power searchlight in her bows, all run by a dynamo. Machinery for driving her side driving-wheels and various gauges for determining depth, rate of speed and air pressure, are also provided, together with a complete outfit for divers, who are equipped with telephones and electric lamps.

The following account of his boat was written by Mr. Simon Lake himself, and we have his permission to reprint it here:—

321

THE “ARGONAUT” IN DRY DOCK.

The hull of the vessel is mounted on three wheels. Of these E is the rudder, for surface steering, and is also the guiding wheel when the vessel is running on the sea bottom; and C is one of the supporting and driving wheels, of which there are two, one on each side. BB are two anchor weights, each weighing 1,000 pounds, attached to cables, and capable of being hauled up or lowered by a drum and mechanism within the boat: 0000 are water-ballast compartments contained within the boat; H is the diver’s compartment, situated forward, with an exit door opening outward in the bottom; while G is an airlock. When it is desired to submerge the vessel, the anchor weights BB are first lowered to the bottom; water is then allowed to enter the water-ballast compartments until her buoyancy is less than the weight of the two anchors, say 1,500 lbs.; the cables connecting with the weights are then wound in, and the vessel is thus hauled to the bottom, until she comes to rest on her three wheels. The weights are then hauled into their pockets in the keel, and it is evident that she is resting on the wheels with a weight equal to the difference between her buoyancy with the weights at the bottom, and the weights in their pockets, or 500 lbs. Now this weight may be increased or diminished as we please, either by admitting more water into the ballast tanks or by pumping 322some out. Thus it will be seen that we have perfect control of the vessel in submerging her, as we may haul her down as fast or as slow as we please, and by having her rest in the bottom with sufficient weight to prevent the currents from moving her out of the course, we may start up our propeller or driving-wheels and drive her at will over the bottom, the same as a tricycle is propelled on the surface of the earth in the upper air. In muddy bottoms, we rest with a weight not much over 100 lbs.; while on hard bottoms, or where there are strong currents, we sometimes rest on the wheels with a weight of from 1,000 to 1,500 lbs. Thus the effect of currents and wave motion, and the maintenance of trim and equilibrium are not factors in the successful navigation of the vessel; in fact, navigation becomes surer on the surface, as one is travelling in a medium which does not constantly change like the surface water from the effects of winds, waves, and currents. When the divers desire to leave the vessel they go into the diver’s compartment, located in the forward portion of the ship, and close the door communicating with the living quarters. This door closes on rubber packing, and is air-tight. Air is then admitted into the compartment from compressed-air reservoirs, until the pressure of air equals that of the surrounding water. The bottom door may then be opened, and no water will come into the boat, as the pressure of air contained within the compartment offers an invisible barrier to its entrance, and the divers may pass in and out as frequently as they please. The Argonaut is fitted with a White and Middleton gasoline engine of 30 h.p., which operates the screws the driving wheels, the dynamo, the air compressors, anchor hoists, and derrick-operating machinery. She is provided with two Mannesmann steel tubes, in which sufficient air may be stored, with what is contained in the boat, to last the crew for twenty-four hours without obtaining a fresh supply from the surface. In the Argonaut, however, and probably in all such craft used for commercial pursuits, as a 323usual thing, there will be a connection with the surface, through which a constant supply of air may be drawn, either by the masts, as shown in the views, one of which supplies air to the interior of the vessel, the other being utilised as an exhaust from the engine, or through suction hose extending to a buoy on the surface. While the engine is running there is about fifty cubic feet of air flowing into the boat per minute; and when the engine is closed down there may be a flow of air maintained by an auxiliary blower, so that it is possible to remain below for days, or even weeks, at a time.

The course is directed by an ordinary compass when on the bottom, and it is found that the needle responds as quickly and is as accurate as when on the surface. Notwithstanding the fact that the Argonaut is quite a small vessel, a crew of five men have lived aboard her during an experimental cruise extending over two months, during which she travelled over 1,000 miles under her own power, partly on the surface and partly on the bottom. The trip was made to demonstrate the practicability of vessels of her type travelling on various kinds of bottoms; also to demonstrate her seaworthiness and capabilities in searching the bottom, in working on sunken wrecks, finding and taking up submerged cables, &c.

We have been in some pretty rough weather, and found that she was perfectly seaworthy. Of course, being so small and of such weight, the seas at times would wash clear over her decks. This, however, caused no inconvenience to those below, as her stability was such that she would roll or pitch very little, even though the seas were breaking over her in great volume. We have been cruising on the bottom in rivers, in Chesapeake Bay and beneath the Broad Atlantic. In the rivers we invariably found a muddy bed; in the bay we found bottoms of various kinds, in some places so soft that our divers would sink up to their knees, while in other places the ground would be hard, and at one place we ran across a bottom which was composed of a loose gravel, resembling shelled corn. Out in the ocean, 324however, was found the ideal submarine course, consisting of a fine gray sand, almost as hard as a macadamised road, and very level and uniform.

During this trip we investigated several sunken wrecks, of which there are a great many in Chesapeake Bay and on the coast adjacent thereto. The vessels we boarded were coal-laden craft, and of themselves not of much value; but the coal would pay handsomely for its recovery, which could be readily accomplished with the proper equipment. We found one old wreck, said to have gone down some forty years ago near the mouth of the Patuxent River. There was nothing in sight except a few timbers and deck beams, and these were nearly consumed by the teredo—a boring worm which completely honeycombs any timber it may attack. We pulled up some of the planks of this vessel, which had a numerous growth of oysters, mussels, and several kinds of submarine vegetation clinging to them. The portion of the timbers not eaten by the teredo was found to be almost as hard as iron, and thoroughly impregnated with the dark-blue mud in which the hull lies buried. After the timbers were hauled to the surface, in sawing them in two, we noticed a very strong odour of yellow pine, and so learned that they must be of that wood, though they were as black as ebony. Toad-fish had evidently found this old wreck a congenial habitation, and when the diver’s hand comes in contact with the slimy back of one of these horrible-looking, strong-jawed, big-mouthed fish, he pulls it back pretty quickly. The piece we pulled up had within it three of these fish, which had taken up their abode in portions of the timber that had been eaten away, and one was a prisoner in a recess which, evidently, he had entered when small, and had grown too large to get out. In a wreck near Cape Henry, fish were very numerous, principally bass and croakers, though two or three small sharks were seen in the vicinity.

It might prove interesting to copy one day’s experiences from our log-book. This day we submerged for the purpose 325of discovering how much weight was necessary to prevent the current from moving the Argonaut in a strong tideway (Hampton Roads), and also to discover if there was any difference in starting our machinery again under water after it had been shut down for several hours. I copy verbatim from the log-book under date of July 28, 1898:—

THE “ARGONAUT” AWASH.

“We spent some hours with Hampton Roads as headquarters, and made several descents in the waters adjacent thereto; we were desirous of making a search for the cables which connected with the mines guarding the entrance to the harbour, but could not obtain permission from the authorities, who were afraid we might accidentally sever them, which would, of course, make their entire system of defence useless. 326It was, therefore, necessary for us, in order to demonstrate the practicability of vessels of this type for this purpose, to lay a cable ourselves, which we did, across the channel leading into the Patuxent River. We then submerged, and taking our bearings by the compass, ran over the bottom, with the door in our diving compartment open, until we came across the cable, which we hauled up into the compartment with a hook only about 4½ feet long, and we could not avoid the impression that it would be a very easy thing to destroy the efficiency of the present mine system. And how many lives might have been saved, and millions of dollars besides, had our navy been provided with a craft of this type to lead the way into Santiago, Havana, or San Juan, off which ports squadrons were compelled to lie for weeks and months owing to fear of the mines.”

I have frequently been asked my sensations on going beneath the water—whether I had any fear of not being able to come up again, and whether it did not require a lot of courage. I usually reply that I have always been too busy and interested for fears or sensations, and that it does not require any courage on my part, as I am so thoroughly satisfied of the correctness of the principles upon which the Argonaut is constructed and the strength of the structure as to have no doubts or fears of any kind; but I do think it requires courage on the part of those who do not understand all the principles involved, and who simply trust their lives in my hands. Quite a number of people have made descents in the vessel, but in only one or two instances have I seen them show any signs of fear.

In one instance, during our trials in the Patapsco, several gentlemen were very importunate in requesting the privilege of making a descent the next time we were to submerge. They were accordingly notified when the boat was to go down. At the appointed time, however, some of them did not appear, and of those who did not one at the last would 327venture. I have no doubt had we made the descent at the time they made the request all would have gone, but thinking about it for a couple of days made them change their minds.

On another trip we had a college professor on board who could not understand exactly how our men could get out of the boat. I told him to come into the diver’s compartment and I would explain it to him. Accordingly he reluctantly, as I thought, entered the compartment, which in the Argonaut is a little room only four feet long and a little wider. After closing the door I noticed that the colour was leaving his face and a few beads of perspiration were standing out upon his forehead, and had he been any one else than a professor or, possibly, a newspaper man, I would not have gone any further with the experiment. The door, however, was closed and securely fastened. I then opened the valve a full turn, and the air began to rush in with a great noise. He grabbed hold of one of the frames and glanced with longing eyes at the door we had just entered. I then turned off the air and said, “By the way, Professor, are you troubled with heart disease?” He said, placing his hand over his heart, “Why, yes, my heart is a little affected.” Remarking, “Oh, well, this little depth will not hurt you,” I turned on the air again after saying to him, “If you feel any pain in your ears swallow as if you were drinking water.” He immediately commenced swallowing, and during that half-minute or so we were getting the pressure on I believe he swallowed enough to have drunk a bucketful of water. After getting the desired pressure I stooped down and commenced to unscrew the bolts, holding the door which leads out into the water. Our professor said, “What are you doing now?” I answered, “I am going to open this door so that you can see the bottom.” Throwing out his hands he said, “No, no. Don’t do that. I would not put you to that trouble for the world.” However, about that time the door dropped down, and as he saw the water did 328not come in the colour returned to his face, and he exclaimed, “Well, if I had not seen it I would never have believed it!”

Mr. Lake declares that as a submarine torpedo-boat his vessel will be practically invincible. She could, he claims, approach a stationary enemy on the bottom and rise up under the water and secure a time-fuse torpedo to her bottom, and she could be fitted with tubes to fire automobile torpedoes. She could also find cables to repair or cut them, and could be used for countermining purposes. The Argonaut is, however, intended not so much for warfare as for recovering treasures from the deep, and for the coral, sponge, pearl, and similar industries. It has been calculated that of the cargoes, treasures and vessels lost in the merchant service the aggregate amounts to over one hundred millions of dollars per year, and the loss has, of course, been going on for many years.

“There is every reason to believe,” says a writer, “that the sea is even richer than the earth, owing to the millions of shipwrecks which have swallowed up so many a royal fortune; the wealth lying at the bottom of the ocean transcends the fabulous riches of the Klondyke.”

The recovery of sunken treasure has always exercised a great fascination over certain minds, and much money has been spent in devising means whereby it might be brought again to the surface. Hitherto the results have not been such as might have been desired, but the Argonaut seems to promise success in the future.

Mr. Lake believes that the majority of the great losses on the ocean occur in waters in which it will be practical to operate with submarine boats of the Argonaut type. The bottom around the coast lines of the United States is principally composed of a hard white or grey sand and is very uniform. The depth increases from the shore at the average rate of about 6 feet per mile, and the bottom forms “an ideal roadway.” The Argonaut can descend to 100 feet below the 329surface. Needless to say, there are ocean depths where the pressure would be so great that man could never live, but Mr. Lake appears to think that exploring the ocean bed, within certain limits, will become in the near future almost as common as travelling on the surface.

Mr. Lake’s third under-water vessel, Argonaut No. 3, is built of steel, is 66 feet long and 10 feet wide, and displaces 100 tons; the motive power is gasoline, and the air chambers contain 13,000 cubic feet of air. She has four large wheels for running on the bottom and also twin screws for the surface.

THE “ARGONAUT” ON THE SEA BOTTOM.

The following is taken from a New York paper, and relates to an entertainment given on Argonaut No. 3:—

“Captain Lake, the inventor of the submarine boat Argonaut, participated yesterday with thirteen other guests in one of the most novel summer entertainments ever devised by the brain of man.

“The party embarked at Bridgeport on Long Island Sound in the boat, which was then submerged, and travelled along the bottom of the sea for several miles. While running at a 330depth of 35 feet a dinner prepared and cooked on board was served.

“After dinner Captain Lake had the door of the diving compartment opened, and two divers went out and exhibited the patent diving suits. Captain Lake then gave an exhibition of his suction pump, which is designed to raise sunken wreckage. The Argonaut stopped near a sunken coal schooner, and by means of the pump four tons of coal were sent up through the water to a coal barge above. The coal was transferred at the rate of a ton a minute.

“A crew of five men navigated the Argonaut under the inventor’s direction. Slight headaches were experienced by some of the guests, otherwise no inconvenience was suffered from the submarine voyage.”

“La Navigation Sous-Marine,” by G. L. Pesce. Paris, 1897.

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“La Navigation Sous-Marine,” by M. Gaget. Paris, 1901.

“La Navigation Sous-Marine à travers les Siècles,” by M. Delpeuel. Paris, 1902.

“Les Torpilleurs autonomes et l’avenir de la Marine,” by G. Charmes. Paris, 1885.

“Les Torpilleurs, la Guerre Navale et la Defense des côtes,” by Vice-Admiral Bourgois. Paris, 1888.

“La Guerre Sous-Marine,” by L. G. Daudenart. Brussels, 1872.

“Les Mines Sous-Marines dans la defense des Rades,” by C. Huët. Brussels, 1875.

“Die Unterseische Schiffahrt,” by L. Hauff. Munich, 1859.

“Geschichte der Sieminen und Torpedoes,” by F. von Ehrenkrook. Berlin, 1878.

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“Notes on Submarine Mines, commonly called Torpedoes,” by Capt. H. Steward, R.E. London, 1886.

“Torpedoes and Torpedo Warfare,” by Lt. C. W. Sleeman (2nd ed., 1889). Simpkin, London.

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“Torpedo War and Submarine Explosions,” by R. Fulton. New York, 1810.

“Submarine Warfare,” by J. S. Barnes. New York, 1869.