| Roger Langdon, Doctor of Music, and Clerk of the Parish of Chisleborough, in the county of Somerset, from the year 1769 to 1791. |
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1769. |
| 22 years. |
| |
| His son, James Langdon, held the Clerkship from 1791 until 1822. |
|
1791. |
| 31 years. |
| |
| Edward Langdon, grandson of Roger, held the office from 1822 until 1871, also Organist. (Father of the subject of memoir.) |
|
1822. |
| 49 years. |
| |
| Edward Langdon, great grandson of Roger, was also Parish Clerk and Organist from 1871 until 1885. |
|
1871. |
| 14 years. |
| |
| Peter Langdon next held this same position and died recently. Great-great-grandson of Roger Langdon. |
|
1885. |
On May 1, 1871, I had a good view of the planet Venus, but
I could not at first see her to my satisfaction as her light was
so bright. She had more the appearance of a miniature sun
than a star; but I put a diaphragm of blackened card in the
eye-piece, and made a small hole through its centre with a
piece of hot wire. I found this arrangement keep out to a
great extent the glaring rays. I also sometimes used a slip
of slightly tinted glass in front of the eye lens; this enabled
me to bring the planet entirely under subjection. Her shape
was that of the moon when a little more than half full. I
distinctly saw a dull, cloudy-looking mark along her bright
limb, curving round parallel to it, and extending nearly across
the disc, each end terminating in a point; joining this at the
eastern extremity was another and darker mark of a club shape,
its small end joining the point of the mark previously described.
I watched these marks for half an hour. I saw some
marks again the next evening, but before I could examine
them the planet was hidden behind some clouds. On May 6,
at 7.45 p.m., there was a cloud-like mark extending straight
across the disc, and a club-shaped mark nearly in the centre,
with its small end nearly touching the straight cloud. On
the western limb another dark mark had made its appearance;
it was not quite so large as the other, and it was not club-shaped;
but its sides were parallel to each other till they
approached the straight cloud, when they appeared to divide,
each side curving round away from the other. I took much
interest in watching these spots, as I had read that it was
very doubtful whether any marks had ever been seen on this
planet. I called several men to look at them, and they were
able to describe them, although they had no previous knowledge
or idea of what they were likely to see. One man was
very confident it was the moon he was looking at, but when
I pointed out to him that the moon was not in the neighbourhood,
he said he thought it was the moon, because he could
plainly see the dark patches on its surface.
On May 13, at 7.30 p.m., there was a dark mark of a pear
shape, extending from near the western edge to two-thirds
the distance across the bright disc. This mark was not so
dark as those seen on the 1st and 6th, but it was much larger.
On July 28, at 8 p.m., there were visible five dusky marks
along the planet's terminator, and one nearly in the centre of
the crescent, but they were not so well defined as those before
described; but what seemed to me more remarkable was that
the southern horn was rounded off considerably, whilst the
northern horn was quite sharp, and ran out to a very fine
thread-like point.
On October 13, at 5.45 a.m., I saw Venus as a beautiful
little crescent. She was well defined, and both horns were as
sharp as the finest pointed needles. I think I detected a
dusky cloud-like mark about half way from the centre to the
northern horn; but I am not quite sure about this as I had
to leave my telescope before I could complete my sketch.
On October 25, at 8.10 a.m., I was gratified with a sight
which I had waited for and longed to see for many years;
that was to have a good view of Venus by daylight. I now
had the longed-for opportunity, and it turned out as I expected.
The superior light of the sun overcame that of the planet to
such an extent that I was able to see her better than I had
ever seen her before. I could now plainly perceive the jagged
nature of the terminator, the unevenness of which could not
be mistaken; but what was very remarkable, the northern
horn was bent in towards the centre of the planet; it appeared
as if a notch had been cut in the inside, and a slice cut off
from the outside.
I have no idea what was the cause of this appearance; I
had never seen it so before, neither do I recollect ever having
read of such a phenomenon. I did not perceive any markings
on this occasion, but there was a kind of haziness along the
whole length of the terminator; but I considered this at the
time to have belonged to the terminator rather than to any
markings on the disc. The terminator on this occasion was
inky black.
On November 9 I saw Venus every half hour during the day
up to one o'clock. I made a sketch at 12.20 p.m. I could
now distinctly see the jagged terminator; the nature of which
was so much like that of the moon as it was possible to conceive;
except that if we compare the moon's terminator to a
piece of network, that of Venus would be represented by a
piece of fine lace. I could also see some thin, cloudy marks on
her disc. The southern horn was very sharp; the northern one
was a trifle rounded.
I saw Venus on February 5, 1870 (a few days before her
inferior conjunction with the sun), and the bright part was an
exceedingly beautiful fine crescent; but I and several other
people could see the whole body of the planet in the same
manner as we see the dark limb of the moon when Earth-shine
is falling upon it; but I did not make any sketch at the time.
I have observed Venus a great many times besides those mentioned
above, having made it my special work to do so, and
have on several occasions strongly suspected markings to be
visible; but I have not mentioned them, and have only described
those times upon which I have no doubt of what I had
seen.
Silverton Station, near Cullompton, Devon.
(Sketches illustrating this and the following paper can be
seen at the Royal Astronomical Society's rooms.)
On January 2, 1873, there was a cloudy mark, of a semicircular
shape, extending nearly across the disc, and a dark
spot in the centre; the illuminated disc itself was singularly
egg-shaped. Bad weather prevented me from constantly
observing this planet, as I should like to have done, but on
April 17, at 8 p.m., I was viewing the planet with one of Mr.
Browning's excellent achromatic eye-pieces, when I saw two
exceedingly bright spots on the crescent—one close to the
terminator towards the eastern horn, and the other in the
centre of the crescent. These spots appeared like two drops
of dew; they were glistening in such a manner as to cause the
surrounding parts of the bright crescent to appear dull by contrast.
Cloudy weather prevented me seeing the planet
again until the 19th, when the spots had disappeared, but the
planet on this occasion was seen through the Aurora, and the
irregular and uneven appearance of the terminator was most
beautifully depicted. The whole body of the planet also
was distinctly visible.
Dear Cousin,—
Knowing how exceedingly anxious you must be to find out
all you can respecting this little planet on which I live, I
take this opportunity to send you a few lines to give you some
little account of it.
The moon, in many particulars, is like the earth on which
you dwell; and perhaps there is no better way to give you
a little more information about this planet than by instituting
a comparison between it and the earth.
I must presume you are aware that the earth is a globe,
nearly round, like an orange; its circumference is about 24,000
miles, and its diameter 8,000. The moon in this respect is
like the earth, being also a globe, but it is only 2,160 miles in
diameter, and about 7,000 miles in circumference. It would
therefore take forty-nine moons to compose a globe the size
of the earth. If you will take two threads and suspend
an orange and a small cherry at six feet apart, you will then
have a fair representation of the relative size and distance
from each other of the earth and the moon. But the earth
and the moon are not suspended by any visible or tangible
object, but were launched forth in the beginning, and are kept
in their places by the balance of attraction, constantly revolving,
and travelling onward by the direction of Him who also
created the insignificant worm, and whose tender care is over
all His works.
You know, dear cousin, that the surface of the earth is
diversified with large continents, which are dotted with chains
of mountains and high hills, some of which are in a state
of volcanic eruption. You have also great oceans of water
lying in the hollows of your world. In the moon, too, we
have mountains and hills, some of them very high and steep,
thrown up ages ago by volcanic agency, though at present
there is not a trace of existing fire or volcanic action, and you
may safely consider the whole mass of the moon to be a huge,
exhausted, burnt-out cinder. Your mountains and hills are
denuded—worn down—their sharp points and angles are worn
away by frost, rain, and snow, and other atmospheric
influences which have been constantly acting upon them for
ages; but here in the moon we have no such thing as an
atmosphere: we therefore have neither clouds nor rain, nor
frost nor snow; and in the words of the poet—
Here are no storms, no noise,
But silence and eternal sleep.
All here is as quiet and silent as the grave. Sometimes, from
the great heat of the sun, great masses of rock will split and
crack, and come tumbling down from the sides of the cliffs;
yet if you were close on the spot you would not hear the
slightest sound, because there is no atmosphere by which
sound can be propagated and conveyed. Your fields are
clad with verdure, and your pastures with flocks, so that
as one of your inspired poets has sung—
The valley stands so thick with corn
That they do laugh and sing,
but neither verdure nor corn can exist upon the moon, as no
plant-life can grow in a vacuum where there is no moisture.
The crater mountains of the moon are its grand peculiarities.
We see here that its whole surface has been upturned, convulsed
and dislocated with forces of the greatest activity, the results
of which remain to this day; so that our rocks are not
levelled down by the fury of tempests, nor smoothed by the
constant flow of water, as your earthly mountains are, but
stand up in all their primitive sharpness. These volcanic
craters are of all sizes, from fifty yards to as many miles
across, and in the centre of some of them there stand up lofty
hills. Now if you could take up your position upon the highest
peak of one of these central hills at the time the sun was
rising, you would see the tops of the distant mountains forming
a circle round you all illuminated by the sun's light;
but as there is no atmosphere, there is no twilight, and consequently
the great valley immediately beneath your feet
would be in the very blackest of darkness.
I know that you and others have often wondered what those
dark grey patches are which you can see upon the moon, even
with the unassisted eye. Some people call them "The man in
the moon, and his bundle of sticks," and the story goes that I
went stealing sticks on a Sunday, and for my wickedness
was banished (sticks and all) into the moon! Now I most
strongly protest against this cruel libel; I never stole any
sticks, even on a week-day, much less on a Sunday, and I
must say the people must have dreadful weak eyesight, and
a dreadfully strong imagination, to see anything in these dark
patches that can possibly be stretched into the shape of a
man with a bundle of sticks at his back. So I hope you will
kindly contradict this calumnious story whenever you can;
indeed, in writing, it was partly my object to ask you to do so.
One of the smallest dark markings that you can see on the
moon with the naked eye is known to selenographers by the
name of Mare Crisium, or the Crisian Sea; its width across
from north to south is 280 miles, and its length is 354 miles
from east to west, and it contains about 78,000 square miles,
more than half as much again as the area of England and
Wales—rather a large size for a bundle of sticks, I opine.
There are several other dark or grey patches on the moon,
some smaller and some larger than the Mare Crisium, but they
are all the beds or bottoms of what were once oceans, seas,
and lakes, the waters of which have been dried up or evaporated
many years ago. Some think they have all gone
over to that side of the moon which never turns round towards
you, but I can tell you that is not the case; for if any
water did exist on the moon's surface, the attraction of the
earth would certainly draw it round to that side nearest to
you, and so you would be able to see some signs of it, as well
as clouds and vapours which would rise from it during the
time of full moon.
There are many other objects of interest, which I could
mention to you, but I must draw my letter to a close; I
will therefore only just give you the names of a few of those
dark hollows which you can see with the unaided eye when
the full moon is shining brightly.
There is the "Sea of Tranquillity": its width from north
to south is 432 miles, and from east to west 425 miles. There
are also the "Sea of Serenity," the "Sea of Fogs," the "Frozen
Sea," the "Sea of Vapours" and the "Gulf of Rainbows."
This last named will appear to you of a greenish tint, and it
is surrounded on nearly all sides with very lofty and
steep mountains, some of them more than 15,000 feet high.
Then there are the "Ocean of Storms," the "Gulf of Dew,"
and the "Sea of Humours." This last will also appear of a
green tint; it is very level, and is 280 miles across.
Next come the "Sea of Nectar" and the "Sea of Fertility."
All these were named "seas," because the ancient
astronomers thought they contained water, and that they
really were seas; but you are aware now that they contain
no trace of water, so I need not inform you of that fact. And
now dear cousin, I sincerely hope that what I have written will
interest you, and if it does, and you will kindly let me know,
I will write you another letter at some future time; but for
the present I will say—Farewell!
Your faithful servant and attached cousin,
"The Man in the Moon."
R. Langdon
This comet, which last year excited so much interest,
is supposed by some to be the same which appeared in the
year 1737. If so, it is beyond the power of the human intellect
to calculate the number of miles (millions upon millions)
which it has travelled since that date; we may, however,
in imagination, travel with it on one of its journeys.
Starting off then, as soon as it has made its perihelion passage,
we are carried in the course of about six months to such
a distance that this comparatively insignificant world (of
which nevertheless we are all anxious to get a good slice)
disappears entirely from our view, and the larger planets of
this system are reduced to mere specks of light. The sun
itself, which here scorches us at noonday, only appears there
as a very minute star, just a small yellow speck. But meantime
other suns, some of them of far greater magnitude and
superior brilliancy than the sun we have left behind, gradually
come into sight, and some of the "nebulæ," which appear
to us here as so many bits of faint hazy light, some of them
no larger than a crown piece, now appear to our unassisted
vision in all the glorious majesty of suns and worlds and systems
of worlds, all revolving round each other in the most
regular and systematic order; for, as Milton says in Paradise
Lost, "Order is Heaven's first law."
After our steed had carried us for the space of about seventy
years in a direct onward course through systems of worlds
by us from this world unseen, we should begin to return homewards,
but by a different route from that by which we went
out; and we should consequently have a constantly varying
scene presented to our view. How awfully grand, for instance,
would be the change, as we gradually lost sight of
our yellow sun, to find ourselves arriving in sight and
under the influence of a sun of a rich crimson red colour, and
again after a few years to find ourselves in the presence of a
green or a blue sun! Yet it is more than probable that such
would be the case, for the sky is spangled with suns of all
colours.
In the course of about 137 years from the time when we set
out we should be returned sufficiently near to this world to
enable its inhabitants to catch sight of our steed's tail. And
then, after all this long journey among the stars of 137 years,
we should have seen but a mere atom, just one grain of the
works of Him who knows the number of the hairs of our
heads, and without whom a sparrow doth not fall to the
ground!
Suppose we now inquire, What is the comet's probable
business in coming amongst us once in 137 years? Are its
duties those of a messenger or a scavenger, or both? It is
well known that the sun is continually giving off light and
heat, and consequently it must of necessity be gradually
exhausting itself. It has been computed that were the mass
of the sun composed of Newcastle coal, with exhaustion going
on at the present rate, the whole mass would be burnt out in
25,000 years. If the sun, then, is gradually being exhausted
by giving off light and heat to his family of planets, and if the
planets cannot give any portion of it back to him, seeing
that they are entirely dependent upon the sun for their own
physical and material existence—how is the sun's strength
to be kept up so as to be equal to the demands made upon
him?
It is but reasonable to suppose that the comets (of which the
firmament is said to be as full as the sea is of fishes) should
bring some subtle fluid of which this system is being exhausted,
and at the same time collect and carry away to other systems
some noxious gas or other essence of which we have a superfluity,
but which might be quite essential to the well-being of
some other system; and that so a sort of healthy circulation
in the universe around us might be kept up.
Ought we not, therefore, to look upon the appearance of
a comet with some such feelings (only in a wider sense) as we
would hail the arrival of a ship from a long voyage to a foreign
clime, feeling sure it must come laden with some good store
for the benefit of those whose business it is to stay at home
performing faithfully their own several duties in their own
several spheres?
R. Langdon.
My dear Nelly-Bly,—
According to promise I send a sketch showing the different
positions of the planet Venus with regard to the earth during
the past few months.
I am astonished, not to say grieved, at the very great
amount of ignorance and superstition which exists respecting
the apparition of this planet recently as a "morning star."
If you will refer to the sketch I will try and point out the
various positions.
June 13, 1887, Venus began to appear low down towards
the western horizon as an "evening star," but as the evenings
were then light I suppose it did not attract public attention.
Daily, however, the planet for a time was seen—after
sunset—higher and higher in the western sky, until August 16,
when it arrived in such a position with respect to the earth
that it sent towards us the greatest amount of reflected light
that it is possible it can send at any given time. The planet
travelling through space in her orbit at the rate of sixty-nine
thousand miles an hour overtook the earth (which is travelling
in the same direction at fifty-eight thousand miles an
hour) on September 21, when she was exactly in a straight line
between us and the sun—called astronomically, "inferior
conjunction." The moment she passes this point she becomes
a morning star. She still moves on and leaves the earth
behind, and when she arrives at the position shown on October
28 she is at her greatest brilliancy as a morning star. From
this time the planet's distance from us is rapidly increasing,
and consequently her apparent size and brilliancy are as
rapidly decreasing, and she is soon altogether lost in the rays
of the sun and can only be seen by the aid of a telescope.
Venus makes a complete revolution round the sun in 224
days and 17 hours, but as the earth moves in the same direction
but at a slower rate the planet overtakes the earth in about
nineteen months, when we have her again as an evening and
morning star respectively as before, and so on continually.
And this is the Star of Bethlehem which has caused such
a stir within the past two months. All sorts of ridiculous
speculation and superstitious nonsense have been said concerning
it. Verily in this our day of rapid advancement
we are almost, if not quite, as ignorant of astronomical matters
as were the "wise men" of the East nearly two thousand
years ago, or the natives of Zululand of the present day.
I hope I have made this plain to you; or if there is anything
you do not understand, just ask the question and I will
endeavour to supply the information.
Yours affectionately,
R. Langdon.
PS.—It is rather singular that Venus rotates upon her axis
in such time as to produce a Leap Year once in four years
as with us.—R. L.
Silverton,
Jan. 31, 1888.
Dear Bly,—
I thought I would send a sketch of the eclipse Annie and
I stayed up to see. We had a very beautiful, clear night,
not a cloud to be seen. The moon entered its eastern edge
into the Penumbra at 8.29 and into the dark shadow at 9.30;
and at 11 p.m. the moon was in the centre of the shadow or
totally eclipsed, but we could still see it appearing like a
large orange and we could see all the principal craters and
mountains through the shadow, and I was very interested
to watch the stars disappear one after another behind the
edge of the moon. Of course I have not shown the sun in
the sketch because there is not room, but you must imagine
the sun to be about the size of a round table a good distance
away to the left of the earth.
Now I will try and explain to you what the Penumbra
is and how it is produced. It is produced simply because
the sun is so much larger than the earth, and you can make
a little experiment and show Freddy and William how it is
done. Place two lighted candles or lamps about the width
of this paper apart which will represent the sun, then a little
way off on a white cloth on the table place a teacup upside
down which will do very well to represent the earth, then you
will have the black shadow of the Penumbra or half shadow
on each side of it. A sixpence will represent the moon,
which you can slide gradually across the shadows, and you
will have the eclipse to a "t."
It is necessary to have two candles or lamps because the
sun is so much greater than the earth and the two candles'
light combined represents the sun's light. A small orange
perhaps would represent the earth as well or better than a
teacup, because the shadow of a cup would not run out to a
sharp point, but that of an orange would. That would not
matter much either way, only Freddy would most likely be
asking the question and you would not be able to answer him.
Your affectionate
Dad.
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