T is a natural, nor can it
be deemed an illaudable
curiosity to be desirous of
being informed of whatever
relates to those who have eminently
distinguished themselves for
sagacity, parts, learning, or what
else may have exalted their characters,
and thereby entitled them to a
degree of respect superior to the rest
of their cotemporaries. The transmission
of such particulars, has ever
been thought no more than discharging
a debt due to posterity; wherefore
it is hoped, that what is here
intended to be offered to the publick,
relative to a gentleman, who is
universally allowed to have merited
so largely in the republic of letters,
and more particularly in his own
profession, a profession, not less useful
than respectable, will not be
judged impertinent or disagreeable.
Our learned author was descended
from a distinguished family in Buckinghamshire,
and born at Stepney the
second of August 1673. His father,
Mr. Matthew Mead, was held in great
esteem as a divine among the presbyterians,
and was possessed, during
their usurped power, of the living of
Stepney; from whence he was ejected
the second year after the restoration
of king Charles the IId. Nevertheless,
tho’ he had fifteen children,
of whom our Richard was the
seventh, he found means, with a
moderate fortune, to give them a
compleat education. To this purpose
he kept a tutor in his house
to instruct them, and they were
taught latin rather by practice than
by rules.
Party-rage perhaps never run higher
than about the latter end of Charles
the IId’s reign; hereby this little domestic
academy was dispersed in
1683. The king, or rather his ministers,
were determined to be revenged
on those, whom they could
not prevail on to concur with their
measures. Mr. Mead (the father) was
accused of being concerned in some
designs against the court; wherefore
being conscious that even his being a
presbyterian, rendered him obnoxious
to those in power, he chose rather to
consult his security by a retreat, then
to rely upon his innocence; to this
purpose he sought and found that repose
in Holland, which was denied
him in his own country; having
first placed his son Richard at a
school, under the tuition of an able
master of his own principles: under
whose care our young gentleman,
by a ready genius, strong memory,
and close application, made a great
proficiency. At seventeen years of
age he was sent to Utrecht, to be
further instructed in liberal knowledge,
by the celebrated Grævius,
with whom he continued three
years.
Having determined to devote his
attention to medicine, he removed
from Utrecht to Leyden, where he
attended Dr. Herman’s botanical
lectures, and was initiated into the
theory and practice of physick, by
the truely eminent Dr. Pitcairn, who
then held the professorial chair of
this science in that university: here
our young student’s assiduity and
discernment, so effectually recommended
him to the professor, who
was not very communicative of his
instructions out of the college, that
he established a lasting correspondence
with him, and received several
observations from him, which he
inserted in one of his subsequent
productions.
His academical studies being finished,
Mr. Mead sought further
accomplishments in Italy, whither
he was accompanied by his elder
brother,[1] Mr. Polhill, and Dr. Thomas
Pellet, afterwards president of
the college of physicians.
In the course of this tour, Mr.
Mead commenced doctor in philosophy
and medicine at Padua, the
twenty-sixth of August 1695, and
afterwards spent some time at Naples
and Rome: how advantageous to
himself, as well as how useful to
mankind he rendered his travels, his
works bear ample testimony.
About the middle of the year
1696, he returned home, and settled
at Stepney, in the neighbourhood
where he was born: the success,
he met with in his practice here,
established his reputation, and was a
happy presage of his future fortunes.
If it be remembered, that our author
was, when he began to practise,
no more than twenty-three
years old, that only three years, including
the time taken up in his
travels, were appropriated to his medical
attainments, it may be, not unreasonably,
admitted, that nothing
but very uncommon talents, join’d
to an extraordinary assiduity, could
have enabled him to distinguish himself,
at this early a period of life,
in so extensive, and so important a
science.
In 1702, Dr. Mead exhibited to
the public, a manifest evidence of
his capacity for, as well as application
to medical researches, in his mechanical
account of poisons; which
he informs us was begun some years
before he had leisure to publish it.
These subjects, our author justly observes,
had been treated hitherto very
obscurely, to place therefore the
surprizing phœnomena, arising from
these active bodies in a more intelligible
light, was his professed intention;
how well he succeeded, the
reception this piece universally met
with, even from its first publication,[2]
sufficiently declares. In 1708
he gave a new edition of it, with
some few additions, the principal of
which consists in some strictures on
the external use of mercury in raising
salivations. He has considerably
further explained his sentiments upon
the same head, in the edition of this
work printed in 1747.
This last edition has received so
many additions and alterations, as
might almost entitle it to the character
of a new performance.——A
stiffness of opinion has been but too
commonly observed, especially among
writers on science; and age has been
seldom found to have worn out this
pertinacity: a favourite hypothesis
has been defended even in opposition
to the most obvious experiments,
with a degree of obstinacy ever incompatible
with the real interests of
truth. On the contrary, our ingenious
author has set before his literary
successors, an example of sagacity
and fortitude, truely worthy of
imitation, in the victory he obtained
over these self-sufficient pre-possessions;
length of years was so far
from rivetting in him an inflexibility
of sentiment, that, joined to a most
extended experience, it served only
to teach him, that he had been mistaken:
his candid retraction of what
he thought to have been advanced
amiss by himself, cannot be better
expressed than in his own words.
“Neither have I, says he,[3] been
ashamed on some occasions, (as
the Latins said) cædere vineta
mea, to retrench or alter whatever
I judged to be wrong. Dies diem
docet. I think truth never comes
so well recommended, as from
one who owns his error: and it is
allowed that our first master never
shewed more wisdom and greatness
of mind, then in confessing his
mistake, in taking a fracture of a
skull, for the natural suture;[4] and
the compliment, which Celsus[5]
makes to him on this occasion, is
very remarkable and just;” nor is
it less applicable to Dr. Mead at present
than it was to the Coan sage
in his day. “More scilicet, inquit,
magnorum virorum, & fiduciam
magnarum rerum habentium. Nam
levia ingenia, quia nihil habent,
nihil sibi detrahunt: magno ingenio,
multaque nihilominus habituro,
convenit etiam simplex veri erroris
confessio; præcipueque in eo ministerio,
quod utilitatis causâ posteris
traditur.”
The insertion of additions and improvements
in the title of new editions
of books, has been too generally,
though sometimes justly, understood
as little else than a contrivance
of the bookseller, to animate a
languishing sale; but this is far from
being the case in respect to the works
of our author, whose maturer sentiments
on many of the subjects, he
had before treated of, cannot be
well comprehended, unless by a careful
perusal of his later corrections,
seeing the alterations he has thought
fit thereby to make in his earlier
productions, are not less necessary to
be attended to by the prudent practitioner,
than they are really interesting
to the unhappy patient: the
truth of which cannot be more manifestly
evinced, than by his last
publication of his essays on poisons;
wherein he entirely subverts his former
hypothesis, and builds his reasonings
upon a new foundation; he
also tacitly admits his former experiments
to have been too precipitately
made, and the conclusions deduced
from them, to have been too
hastily drawn.
To illustrate what has been advanced
upon this head, it will not
be improper to observe, that when
Dr. Mead first wrote these essays, he
was of opinion, “That the effect of
poisons, especially those of venemous
animals, might be accounted
for, by their affecting the blood
only: but the consideration of the
suddenness of their mischief, too
quick to be brought about in the
course of the circulation, (for the
bite of a rattle snake killed a dog
in less than a quarter of an hour)[6]
together with the nature of the
symptoms entirely nervous, induced
him to change his sentiments,[7]”
and to conclude, that
the poison must be conveyed by a
medium of much greater quickness,
which could be no other than the animal
spirits.
From hence our author is led to
prefix to the last edition of this performance,
an inquiry into the existence
and nature of this imperceptible
fluid, with which we have been but
very imperfectly acquainted. He has
also added several new experiments,
tending to confirm this theory, and
explain the properties of the viperine
venom, particularly by venturing to
taste it; at the same time he has
likewise contradicted some of those
he had formerly made, whereby he
had been induced to believe, this
poison partook of a degree of acidity:
for instance, he formerly asserted
that he had seen this sanies,
“as an acid, turn the blue tincture
of heliotropium, to a red colour;[8]”
whereas his more modern trials convinced
him, it produced no alteration
at all.
The essays on the tarantula and
mad dog, are likewise considerably
enlarged in the last impression; especially
the latter, in which is now
comprehended a regular and elegant
history of the symptoms attending
the bite of this enraged animal, the
reason of the consequent hydrophobia,
and more extensive directions for the
cure: also an accurate description of
the lichen cinereus terrestris, its efficacy,
and manner of acting. A
composition of equal parts of this
plant and black pepper, was inserted,
at our author’s desire, into the London
dispensatory, in the year 1721,
under the title of pulvis antilyssus,
which he afterwards altered by using
two parts of the former, and only
one of the latter, as it now stands:
in 1735 he also recommended the
use of this medicine in a loose sheet,
intitled, a certain cure for the bite of
a mad dog.
In treating of poisonous minerals,
exclusive of what is added concerning
mercurial unctions, our author
has given a new analysis of the antient
and modern arsenic; and his
essay on deliterious plants, has afforded
him an opportunity of enquiring
into the cicuta, so much in
use of old for killing, especially at
Athens, and which is said to have
been administered to Socrates in consequence
of his condemnation. To
this he has likewise subjoin’d an appendix,
concerning the mischievous
effects of the simple water distilled
from the lauro-cerasus, or common
laurel, which were first observed
some years since in Ireland, where,
for the sake of its flavour, it was
frequently mixed with brandy.—His
observations upon venemous exhalations,
are not less extended, nor
ought the, as well useful as ornamental,
plates added to this last edition,
to pass unnoticed, particularly,
“The anatomical description of the
parts in a viper, and in a rattlesnake,
which are concerned in
their poison,” by our great anatomist
the learned and ingenious Dr.
Nichols.
In 1703 Dr. Mead communicated
to the royal society, a letter published
in Italy in 1687 (a copy of
which he met with in the course
of his travels) from Dr. Bonomo to
Seignor Redi, containing some observations
concerning the worms of
human bodies;[9] whereby it is intended
to prove, that the disease, we
call the itch, proceeds merely from
the biting of these animalcules: this
opinion is espoused by our author
in one of his latest performances,[10]
wherein therefore he directs only topical
applications for the cure of this
troublesome disease.
The proofs our young physician
had already given of literary merit,
recommended him soon after the
above-mentioned communication, to
a seat among that learned body; in
the same year he was also elected
one of the physicians of St. Thomas’s
hospital, and was employed by the
surgeons company to read anatomical
lectures at their hall, which he
continued to do for some years.
In 1704 appeared his treatise de
imperio solis ac lunæ in corpora humana,
& morbis inde oriundis. At
this time the Newtonian system of
philosophy, from whence our author
had chiefly deduced his reasonings
upon this abstruse subject, were neither
thoroughly understood, nor universally
received: nevertheless whatever
cavils were raised against his
hypothesis, it was generally admitted,
that his observations had their
uses in practice.
The doctor thought proper to revise
this juvenile production, and to
give a new edition of it in 1748;
when he not only altered the disposition
of some of the old, but also
introduced more than a little new
matter into that work: particularly
he has placed some mathematical
points in a clearer light, than they
before appeared; he has entered
into the discussion of “a difficult
question, which has raised great
contention among philosophers:
viz. whereas water is more than
eight hundred times heavier than
air, how does it happen, that the
latter when replete with watery
vapours, depresses the mercury in
the barometer; so that its fall is
an indication of rain?[11]” he has also
enquired into “the weight of the
atmosphere on a human body,
and its different pressure at different
times;[12]” and he has illustrated
and confirmed the medicinal
part by several additional observations
and cases, that promise real
utility to the practice of physic. To
the whole is now first adjoined a
corollary tending to strengthen his
reasonings upon the subject, by observations
of the effects of storms on
the human body; wherein, from the
case of a lady who was seized in an
instant with a gutta serena, (that
rendered her totally blind) on the
night of the great storm which happened
in 1703, he is led to give a
distinct account of the cause and
cure of that melancholly distemper.
This work is also remarkably distinguished
by many curious observations
our author received from his ingenious
preceptor in the art of healing,
Dr. Pitcairne.
Our author’s distinguished genius
for, and sedulous attention to the
interests of his profession, procured
him an acquisition of farther honours,
as well as recommended him
to the patronage of the most eminent
of the faculty: in 1707 his Paduan
diploma for doctor of physick,
was confirmed by the university of
Oxford; in 1716 he was elected
fellow of the college of physicians,
and served all the offices of that
learned body, except that of president,
which he declined when offered
to him in 1744. Radcliff,
the most followed physician of his
day, in a particular manner espoused
Dr. Mead, and in 1714, upon the
death of the former, the latter succeeded
him in his house, and the
greater part of his practice; some
years before which, he had quitted
Stepney, and had resided in Austin
Fryars.
Party-principles were far from influencing
his attachments; though
he was himself a zealous whig, he
was equally the intimate of Garth,
Arbuthnot, and Friend: his connections,
more especially, with the
latter, are manifested not only in
their mutual writings, (of which,
more hereafter) but in that when
Dr. Friend was committed a prisoner
to the Tower in 1723, upon a suggestion
of his being concerned in the
practices of Bishop Atterbury against
the government, Dr. Mead became
one of his securities to procure his
enlargement.
In 1719, an epidemic fever made
great ravages at Marseilles; and tho’
the French physicians were very unwilling
to admit, this disease to have
been of foreign extraction or contagious;
yet our government wisely
thought it necessary, to consider of
such measures as might be the most
likely to prevent our being visited
by so dangerous a neighbour; or in
failure thereof, to put an early stop
to the progress of the infection. Dr.
Mead, whose deserved reputation
may not unjustly be said to have
merited that mark of distinction,
was consulted on these critical and
important points, by command of
their excellencies, the lords justices
of the kingdom, in his majesty’s absence:
how equal he was to this
momentous talk, sufficiently appears
from the discourse he published on
that occasion: the approbation this
performance met with, may be estimated
from the reception it universally
found; seven impressions were
sold of it in the space of one year,
and in the beginning of 1722, the
author gave an eighth, to which he
prefixed a long preface, particularly
calculated to refute what had been
advanced in France, concerning the
absence of contagion in the malady
that had afflicted them: he also now
added a more distinct description of
the plague, and its causes; and confirmed
the utility of the measures he
had recommended, for preventing its
extension, from examples of good
success, where the same had been
put in practice: to these he has
likewise annexed, a short chapter
relating to the cure of this deplorable
affliction.—In 1744, this work was
carried to a ninth edition, wherein,
to use the doctor’s own expression,
he has “here and there added some
new strokes of reasoning, and, as
the painters say, retouched the
ornaments, and heightened the colouring
of the piece.” Here it may
not be improper to take notice, that
it is in this last impression of his
discourse on the plague, that our author
appears to have first adopted his
theory of the properties and affections
of the nervous fluid, or animal spirits,
upon which he has also founded
his latter reasonings on the subject
of poisons, as well as in respect to the
influence of the sun and moon on
human bodies.
In 1723, Dr. Mead was appointed
to speak the anniversary Harveian
oration, before the members of the
college of physicians, when, ever
studious of the honour of his profession,
he applied himself to wipe
off the obloquy, thought to be reflected
upon it, by those who maintained
the practice of physic at Rome,
to have been confined to slaves or
freed-men, and not deemed worthy
the attention of an old Roman: which
oration was made publick in 1724,
and to it was annexed, a dissertation
upon some coins, struck by the Smyrnæans,
in honour of physicians.[13]
This publication was smartly attacked
by Dr. Conyers Middleton in
1726,[14] who was replied to by several,
and particularly, as it is said,
by Dr. John Ward, professor of rhetoric
in Gresham College. This gentleman
was supposed by his opponent,
to have been employed by Dr.
Mead, who did not chuse to enter
personally, into this little-important
debate; upon which presumption,
Dr. Middleton published a defence
of his former dissertation in the succeeding
year;[15] wherein he treats his
respondents with no little contempt.[16]
The merits of this dispute are not
intended to be here discussed, but it
may not be amiss to observe, that
however displeased Dr. Middleton
may have been with his antagonists;
in a work published several years after,
he speaks of our author in the
most respectful manner. In treating
of an antique picture, he says, he
believes it to be the first, and only
one of the sort ever brought to England,
“donec Meadius noster, artis
medicæ decus, qui vita revera nobilis,
vel principibus in republica
viris, exemplum præbet, pro eo,
quo omnibus fere præstat artium
veterum amore, alias postea quasdam,
& splendidiores, opinor, Roma
quoque deportandas curavit.”[17]
In respect to this controversy, our
author’s eulogist[18] takes notice that
there is reason to believe, that Dr.
Mead himself had some thoughts of
more determinately explaining or
confirming his sentiments upon this
subject, in a work which he left unfinished,
and which was designed to
have been intitled, medicina vetus
collectitia ex auctoribus antiquis non
medicis.
However, this literary altercation,
did not in the least affect our author’s
medical reputation, for in
1727, soon after his present Majesty’s
accession to the throne, whom he
had the honour to serve in the same
capacity while prince of Wales, he
was appointed one of the royal physicians,
and he had the happiness to
see his two sons-in-law, Dr. Willmot
and Dr. Nichols, his co-adjutors
in that eminent station.
After having spent near fifty years
in the constant hurry of an extensive
and successful practice; after
having lived (truely according to his
own motto, non sibi sed toti) beyond
that period assigned by the
royal psalmist for the general term
of mortality; when the infirmities
of age would no longer permit him
the free exercise of those faculties,
which he had hitherto so advantageously
employed in the service of
the community, far from sinking
into a supine indolence, or assuming
a supercilious disregard of the world,
he still continued his application,
even in the decline of life, to the
improvement of physic, and the benefit
of mankind.
When he was grown unequal to
the discharge of more active functions,
and a retirement was become
absolutely necessary, he took the opportunity
of revising all his former
writings: to this retreat therefore,
and the happy protraction of so useful
a life, the world is indebted for
the improvements that appear in the
latter editions of those works, which
have already been taken notice of.
It was not till now that our author
could find leisure to perfect his discourse
on the small pox and measles,[19]
which had been begun by him many
years before.
As it was the principal design of
these memoirs, to lay before the public
a concise and comprehensive history
of Dr. Mead’s writings, the occasion
of this universally admired performance,
cannot be better given than from
the author’s own account, contained in
the preface to it, in which also his
connections with, and attachment to
Dr. Friend, are further illustrated.
It appears that Dr. Mead, from
having observed in the year 1708,
that some of his patients in St. Thomas’s
Hospital, recovered from a
very malignant sort of the small
pox, even beyond expectation, by a
looseness seizing them on the ninth
or tenth day of the disease, and
sometimes earlier, first took the hint
to try what might be done by opening
the body with a gentle purge,
on the decline of the distemper;
finding the success of this experiment
in a great measure answerable
to his wishes, he communicated
this method of practice to Dr. Friend,
and met with his approbation.
The latter being, soon after, called
to a consultation with two other
eminent physicians, on the case of a
young nobleman who lay dangerously
ill of the small pox, proposed our
author’s method; this was opposed
till the fourteenth day from the eruption,
when the case appearing
desperate, they consented to give him
a gentle laxative draught; which
had a very good effect: Dr. Friend
was of opinion to repeat it, but was
over-ruled, and the patient died the
seventh day after.[20]
From the result of this case, the
gentlemen of the faculty were greatly
divided in opinion, as to the rectitude
of this practice, insomuch that
Dr. Friend thought himself under a
necessity of vindicating it; and therefore
sent to our author for the purport
of their former conversation
upon this topic, desiring it might
be reduced into writing. Such was
the friendship that mutually subsisted
between these learned men, that
this request was granted without hesitation,
and Dr. Mead’s letter was
shewn to Dr. Radcliffe, who prevailed
upon our author to consent, that
the same might be annexed to Dr.
Friend’s intended defence; which,
however he was advised by some
friends, to drop at that time; whereby
this letter lay by till the latter’s
publication of the first and third
books of Hippocrates’s epidemics, illustrated
with nine commentaries concerning
fevers. Of these the seventh
treats of purging in the putrid fever,
which follows upon the confluent small
pox: to which are annexed, in support
of this opinion, letters from four
physicians on that subject, and among
them that from our author, which
he had translated from the english
into latin, enlarged and new modelled
to serve this purpose.
This work gave rise to a controversy,
maintained with an unbecoming
warmth on both sides: among
Dr. Friend’s principal opponents,
may be reckoned Dr. Woodward;
who, not contented with condemning
a practice, experience has since
evinced not only salutary in general,
but in many cases absolutely necessary;
likewise treated its favourers
with contempt and ill-manners, and
more particularly our author;[21] whose
resentment upon this occasion, appears
to have been carried to a justly
exceptionable length, seeing it had
not subsided twenty years after the
death of his antagonist.[22]
Dr. Mead’s daily acquisition of
knowledge and experience, enabled
him to enlarge to many beneficial
purposes, this performance, which,
in all probability, was at first designed
only to illustrate and vindicate
the sentiments contained in the aforementioned
letter; and it is but justice
to say, the applause it has found
among the learned, as well for the
elegance of its diction, as the perspicuity
of its precepts, is no more
than what is truely due to it.——To
this discourse is subjoin’d a latin translation,
from the arabic of Rhazes’s
treatise on the small pox and measles,
a copy of the original having been
obtained for this purpose by Dr. Mead,
from the celebrated Boerhaave, between
whom there had long subsisted
an intimate correspondence, nor
did their reciprocally differing in
some opinions, diminish the friendship
they mutually manifested for
each other.
The year 1749, furnished two
new productions from our author; a
translation of one of which follows
these memoirs. The other is entitled,
a discourse on the scurvy, affixed to
Mr. Sutton’s second edition of his
method for extracting the foul air
out of ships.
It is more than possible that, but,
for the patronage of Dr. Mead, this
contrivance, which confers no less
honour to the inventor, than utility
to the public, might have been for
ever stifled: our author, than whom
no one more ardently wished for, or
more zealously promoted the glory
and interest of his country, being
thoroughly convinced of its efficacy,
so earnestly, and so effectually recommended
it to the lords of the admiralty,
as to prevail over the obstinate
opposition that was made against
its being put into practice. To the
same purpose in 1742, he explained
the nature and conveniencies of this
invention to the royal society,[23] and
with the same view he confessedly
wrote the last mentioned discourse,
of which he made a present to Mr.
Sutton.
His medical precepts and cautions,
which appeared in 1751, and was
his last publication, affords an indisputable
testimony, that length of
years had not in the least impaired
his intellectual faculties. Our author
has herein furnished the public, with
the principal helps against most diseases
which he had either learned by
long practice, or deduced from rational
principles.[24] Who could with
the same propriety take upon himself
to be an instructor and legislator in
the medical world, as he who had
been taught to distinguish truth from
falsehood, in the course of so extended
an experience, protracted now
to almost threescore years? to this
may be added, that he has so contrived
to blend the utile dulci, by
embellishing his precepts with all the
delicacy of polite expression, as to
render them at the same time not
less entertaining than instructive.
However, this work was productive
of two other little pieces, from
two gentlemen of the faculty: one
by Dr. Summers; who in a pamphlet
on the success of warm bathing
in paralytic cases, controverts Dr.
Mead’s assertion, that “hot bathing
is prejudicial to all paralytics” ...
“calidæ vero immersiones omnibus paralyticis
nocent[25].”—Some reflections
upon the advocates for Mrs.
Stephens’s medicines, in the cure of
the stone and gravel, by our author,
occasioned a letter to him on that
subject by Dr. Hartley of Bath.
The former expressed himself in the
following manner; “Neque temperare
mihi possum, quin dicam in
opprobrium nuper medicis nonnullis
cessisse, quod insano pretio redimendi
anile remedium magnatibus
auctores fuerunt.[26]” ... “Nor can
I forbear observing, tho’ I am extremely
sorry for the occasion,
that some gentlemen of the faculty
a few years since acted a
part much beneath their characters,
first in suffering themselves to
be imposed on, and then in encouraging
the legislature to purchase
an old woman’s medicine at an
exorbitant price.”[27] Of this the latter
complains as an unmerited indignity,
“Illud interea (inquit) tanquem
inopinatum, & ab æquitate
tua alienum queri liceat, Te, qui
in obvios quoscunque comis & urbanus
esse, bene autem merentibus
de re medica, vel etiam literaria
quavis, summa cum benignitate favere
soleas, in lithrontriptici fautores
acerbiùs invectum fuisse; &
non potius laudi illis dedisse, quod
arcanum sine pretio vulgatum, virorum
dignitate, fide, ingenio, artis
nostræ peritiâ illustrium examini
subjecerent, neque aliam viam
ad præmium reportandum aperiri
voluerint, quam quæ, veris licèt
rerum inventoribus facilis & munita,
jactatoribus tamen & falsiloquis
esset impervia.[28]” ... In the
mean while, I cannot but complain
of it as a thing unexpected, and
greatly inconsistent with your usual
candour, that YOU, who are so courteous
and humane to all mankind,
and so remarkably the patron of those
who excel in the profession of physic,
or indeed in any branch of learning,
should so severely reproach the favourers
of this lithontriptic medicine;
and not rather have commended
them, for submitting a secret,
communicated to them without fee
or reward, to the examination of
some worthy physicians, eminent for
integrity, ingenuity, and learning:
and for endeavouring to excite the
munificence of the publick in such a
manner only, as to render it accessible
to the true authors of an important
discovery, but impervious to
boasting impostors.
In enumerating the obligations the
republic of letters is under to Dr.
Mead, it would be injustice to omit
taking notice, that to his generosity
and public spirit, it is farther indebted
for the first complete edition
of the celebrated history of Thuanus.[29]
To enlarge upon his literary collections,
and other curiosities, would
at present be useless, seeing the world
will soon be apprized of their value
and contents from the catalogues that
are already, and are yet about to
be published of them; it may therefore
suffice to say, that he did not
shew more assiduity and judgment
in collecting them, than he did candour
and generosity in permitting the
use of them to all that were competent
judges, or that could benefit
themselves, or the public by them.
It may, perhaps not unjustly, be
said no Subject in Europe had a cabinet
so richly and so judiciously filled;
to which the correspondence he
maintained with the learned in all
parts of Europe, not a little contributed;
nor can there be an higher
instance given of his reputation in
this respect, than in the king of Naples
having sent him the two first
volumes of M. Bajurdi’s account of
the antiquities found in Herculaneum,
with the additional compliment
of asking in return, only, a compleat
collection of our author’s works,
to which was adjoined, an invitation
to visit that newly discovered subterraneous
city: an invitation that could
not but be greatly pleasing to a genius
so inquisitive after knowledge,
and which he declared, he should
very gladly have embraced, had not
his advanced years been an insuperable
impediment, to the gratification
of his curiosity. In short, his
character abroad was so well known
and established, that a foreigner of
any taste, would have thought it a
reproach to him, to have been in
England without seeing Dr. Mead.
As his knowledge was not limited
only to his profession, the deserving
in all sciences had not only free access
to him, but always found a welcome
reception, and at his table
might daily be seen together the naturalist,
the antiquarian, the mathematician,
and the mechanic, with
all whom he was capable of conversing
in their respective terms; here
might be seen united the magnificence
of a prince, with the pleasures
of the wise.
His munificence was conspicuous
in that there was no remarkable publick
charity to which he was not a
benefactor, particularly he was one
of the earliest promoters of, and subscribers
to the Foundling hospital.
Let these specimens of his superior
abilities and merit suffice for the
present, nor let envy or detraction
attempt to sully so exalted a character.—Soon
after the publication
of his monita & præcepta medica,
this ornament of his profession, and
delight of his acquaintance, grew
more and more sensible of the natural
infirmities attending his length of
years; and with the utmost tranquillity
and resignation, quietly sunk
into the arms of death on the 16th
of February 1754. To whom may,
with the greatest propriety, be applied
a part of the epitaph inscribed
to the memory of the celebrated
Guicciardini, at Florence;
Cujus Otium an Negotium
Gloriosius incertum:
Nisi Otii Lumen Negotii Famam
Clariorem reddidisset.
The END.

THE PREFACE. — FOOTNOTES:
Y declining years having
in a great measure
released me from
those medical fatigues,
in which, for the publick
good, (at least as I hope) I
have been employed about fifty
years, I have determined to
pass the short remains of life in
such a sort of leisure, as may
prove neither disagreeable to
myself, nor useless to others.
For good men are of opinion,
that we must give an account
even of our idle hours, and
therefore thought it necessary,
that they should be always
well-spent.
Having from my earliest
childhood entertained a strong
passion for learning, after I
had chosen the art of medicine
for my profession, I still never
intermitted my literary studies;
to which I had recourse from
time to time, as to refreshments
strengthening me in my daily
labours, and charming my cares.
Thus, among other subjects, I
frequently read the holy scriptures,
as becomes a christian;
and next to those things which
regard eternal life, and the doctrine
of morality, I usually
gave particular attention to the
histories of diseases, and the
various ailments therein recorded;
comparing those with
what I had learnt either from
medical writers or my own experience.
And this I did the
more willingly, because I had
remarked that divines, thro’ an
unacquaintance with medicinal
knowledge, frequently differed
widely in their sentiments; especially
on the subject of dæmoniacs
cured by the power of
our saviour Jesus Christ. For
it is the opinion of many, that
these were really possessed with
devils, and that his divine virtue
shone forth in nothing more
conspicuous than in expelling
them. I am very far from
having the least intention to
undermine the foundations of
the christian doctrine, or to
endeavour, by a perverse interpretation
of the sacred oracles,
to despoil the Son of God
of his divinity, which he has
demonstrated by so many and
great works performed contrary
to the laws of nature.
Truth stands no more in need
of the patronage of error, than
does a natural good complexion
of paint. And it is
certain, that the opinion which
has been prevalent for many
ages, of the power granted to
devils, of torturing human bodies
and minds, has been several
ways made subservient to
the subtle designs of crafty
men, to the very great detriment
and shame of the christian
religion.
What sensible man can avoid
justly deriding those solemn
ceremonies, practised by
the roman priests, in exorcising,
as they are fond of terming it,
dæmoniacs: while proper persons
(hired and) taught to counterfeit
certain gestures and fits
of fury, such as are believed to
be caused by evil spirits, pretend
that they are freed from
devils, and restored to their
senses by holy water, and certain
prayers, as by inchantment.
But these juggling tricks,
how grosly soever they may
impose on the eyes and minds
of the ignorant multitude, not
only scandalize, but also do a
real injury to, men of greater
penetration. For such, seeing
into the cheat, often rush headlong
into impiety; and viewing
all sacred things in the
same light, after they have
learnt
Relligionibus atque minis obsistere vatum:[30]
they advance farther, and by an
abominable effort, endeavour
thoroughly to root out of their
minds all sense and fear of the
supreme deity. In which proceeding
they act as if a person
doubted of the existence of the
Indies, because travellers relate
many falshoods and fictions
concerning them. Hence it
comes to pass, that, in countries
too much given up to superstition,
very many atheists
are to be met with even among
the learned, whom their learning
and knowledge ought to secure
from these errors. Therefore
to be free from this folly,
is the principal part of wisdom;
next to which, is not to
corrupt truth with fictitious
opinions.
And indeed it is frequently
to me a matter of wonder, why
our spiritual guides so strenuously
insist on exhibiting
devils on the stage, in order to
make the divinity of Christ
triumph over these infernal enemies.
Is Christ’s divine power
less manifested by the cure of
the most grievous diseases, performed
in an instant at his
command; than by the expulsion
of evil spirits out of the
bodies of men? Certainly all
the wonderful things done by
him for the good of mankind,
such as restoring sight to the
blind, firmness and flexibility
to relaxed or contracted nerves,
calling the dead to life, changing
the properties of the elements,
and others of the same
kind, are testimonies of the
omnipotence of the creator of
the world, and demonstrate the
presence of God; who alone
commands all nature, and at
his pleasure changes and inverts
the order of things established
by himself. Wherefore
it cannot be doubted, that
He, who has perform’d these
things, had the devils subject
to him, that they might not
obstruct his gracious resolution
of revealing the will of his father
to men, and correcting
their depraved morals.
But to resume the subject
of dæmoniacs, the opinion,
which I propose in this treatise,
is not purely my own, but
also of several other persons,
before me, eminent for piety
and learning. And indeed among
our own countrymen, it
was in the last century defended
in an excellent dissertation,
by that treasure of sacred
knowledge, the reverend Joseph
Mead. Wherefore as I
have the honour to be of the
same family with him, and
am the son of Matthew Mead,
a very able divine, I always
thought I might lay some claim
to these studies, by a kind of
hereditary right.
I am not insensible of the
difficulty of removing vulgar
errors, especially those which
relate to religion. For every
body knows the power of education,
in imprinting on the
mind notions, which are hard
to be effaced even in adult
age. Children in the dark, fear
ghosts and hobgoblins; and
hence often quake with the
same fear through the whole
course of their lives. Why
then do we admire, if we can
hardly unlearn, and clear our
minds of, some false notions,
even when we are advancing
to old age? Nor will this be
deemed indeed a matter of
little importance by him, who
considers the serious evils, into
which mankind are often led,
by things that to some may
appear trifling, as being nothing
more than bugbears of
children and women. My soul
is seized with horror on recollecting,
how many millions of
innocent persons have been
condemned to the flames in
various nations, since the birth
of Christ, upon the bare suspicion
of witchcraft: while the
very judges were perhaps either
blinded by vain prejudices, or
dreaded the incensed populace,
if they acquitted those, whom
the mob had previously adjudged
guilty. Who would
believe that any man in his
right senses could boast, as a
matter of merit, that he had
capitally condemned about nine
hundred persons for witchcraft,
in the space of fifteen years, in
the sole dutchy of Lorraine?[31]
And yet from many histories,
which he relates of those who
suffered, it manifestly appears,
that every individual of these
criminals, had no compacts
with devils, as they themselves
imagined, but were really mad,
so as openly to confess that
they had done such feats as are
impossible in the nature of
things. But so it happens,
that error generally begets superstition,
and superstition cruelty.
Wherefore I most heartily
rejoice, that I have lived to see
all our laws relating to witchcraft
entirely abolished: whereas
foreign states still retain this
barbarous cruelty, and with
various degrees of obstinacy in
proportion to their ignorance
of natural causes. And it is
but too true, that the doctrine
of dæmons is so understood by
the vulgar, as if the devil was
to be esteemed a sort of deity;
or at least, that, laying the
fear of him aside, no divine
worship can well subsist; altho’
the apostle has expresly said;
For this purpose the Son of
God was manifested, that he
might destroy the works of the
devil.[32]
And here it may not be improper,
once for all, to inform
the reader, that I have generally
made use of Sebastian
Castalio’s version of the bible,
because, upon collating it in
many places, I found it to be
not only excellent Latin, but
also very accurate, and particularly
well adapted to the
sense and meaning of the words
in the Hebrew and Greek.
Nor can I refrain from declaring,
that I have not writ
these essays for the profane or
vulgar; but for those only
who are well versed, or at least
initiated in theological or medical
studies: and for this reason
I chose to publish it in
Latin; which language has
for many ages past been made
use of by learned men; in order
to communicate to each
other, whatsoever might seem
to them either new, or expressed
in a different manner from
the common notions. Wherefore
if any person should intend
to publish an English version
of this book, I give him
this timely notice, that he will
do it, not only against my
will; but likewise in direct
opposition to that equitable
law, whereby every man is allowed
to dispose of his own
property according to his pleasure.[33]
But to bring this preface to
a conclusion; it is manifest
that the christian religion requires
of all its members in a
most especial manner, to practice
every act of humanity and
benevolence towards each other.
Wherefore the utmost care
ought to be taken, that this
beneficent disposition of mind
be not corrupted by any means
whatsoever: and nothing contributes
more towards bringing
on this corruption, than opinions
derogatory from the divine
goodness. Upon this account,
as such is the misfortune
of our times, that it is
not only allowed, but even by
many deemed a commendable
action, to oppugn, and by
every method to invalidate, the
doctrine and authority of the
christian religion; no interpretations
of the histories of miracles
ought to be look’d upon as
out of season, provided they
appear neither improbable, nor
repugnant to the nature of the
facts related.
In fine, it was not my intention
to treat of every disease
mentioned in holy writ;
but to confine myself more
particularly to those, the nature
of which is generally but
little known, or at least to such
as I had some peculiar medicine
for, or method of cure,
to offer to the public; and to
perform this task, in the same
order, in which they occur in
those sacred writings: excepting
only Job’s disease, to which
I have given the first place, on
account of the great antiquity
of that book. The Saviour of
the world, in order to make
his divine power manifest to
mankind, cured many other
diseases, both of the body and
mind, besides those which I
have mentioned in this work:
the nature and causes of all
which diseases, whosoever would
intend to enquire into, must of
necessity compile a body of
physic, which was not my present
design. But if providence
protract my life, I am not
without hopes of laying more
of my thoughts on this subject
before the public, for the honour
which I bear to my profession,
unless
Frigidus obstiterit circum præcordia sanguis.
In the mean time, whatever be
the fate of these essays with my
readers, I shall rest satisfied
from a consciousness of the
rectitude of my intention, in
having thus employ’d some of
my hours of leisure.

CHAPTER I. — The Disease of Job. — FOOTNOTES:
Job’s disease is rendered remarkable
by some uncommon circumstances
and consequences; such as
the dignity of the man, the sudden
change of his condition, his extraordinary
adversity, his incredible patience
under them, his restoration to
a much happier state than he had
ever before enjoyed, and lastly the
singular nature of the illness with
which he was seized.
His habitation was in the land of
Uz, which, according to the learned
Friderick Spanheim,[34] was situated in
the northern part of Arabia deserta,
towards the Euphrates and Mesopotamia.
He was a very illustrious man,
the most opulent of all the Orientals,
very happy in sons and daughters, of
a most upright life and exemplary piety.
Now it is related that God, in
order to try his integrity and constancy,
permitted Satan to afflict him
by all means which he could devise,
except the taking away of his life.
“In pursuance of this permission, Satan
brought the most dreadful calamities
on him; for all his oxen
and asses were driven away by the
Sabeans; his sheep and servants
were consumed by fire from heaven;
his camels were carried off;
his sons and daughters were crush’d
to death by the falling in of the
house upon them in a violent storm
of wind; and soon after he himself
was afflicted with scabs and foul
ulcers all over his body; so that
he sate down among the ashes, and
scraped himself with a potsherd.”
Thus from a very rich man he became
extremely poor, and from the heighth
of prosperity he sunk into the depth
of misery. And yet all these evils
did not give the least shock to his
firmness of mind, nor to his piety towards
God:[35] wherefore the Lord,
moved by his prayers, put an end to
all his calamities; gave him twice as
much wealth as he had lost, and
made him more prosperous than he
had ever been before.[36]
Now the book of Job may justly
be esteemed the most ancient of all
books, of which we have any certain
account: for some are of opinion that
it was written in the times of the patriarchs;
many others, that it was
composed about the days of Moses,
and even by Moses himself; and there
are but few who think it posterior to
him.[37] For my part, I embrace the
learned Lightfoot’s opinion, that it
was composed by Elihu, one of
Job’s companions, chiefly because he
therein speaks of himself as of the
writer of this history,[38] and if so, it
will appear to be older than the days
of Moses. However this be, it is most
certain that this book carries with it
manifest tokens of very great antiquity;
the most material of which seem
to be these. In it there is not the
least mention made of the departure
of the Israelites out of Egypt, of Moses,
or the Mosaic Law. After the
manner of the Patriarchs, Job, as the
head of his family, offered sacrifices
in his own private house, for the sins
of his children.[39] When he declares
his integrity he scarcely mentions any
other Idolatry, but that most ancient
one, the worship of the sun and
moon,[40] which we know to be very
old, and to have first obtained among
the neighbouring Chaldeans, and
Phœnicians. In fine his own age, protracted
far beyond the life of man in
Moses’s time, is a proof of its antiquity,
for he lived a hundred and forty
years after an end had been put to his
calamities; so that it is reasonable to
believe that he lived above two hundred
years in all. For that he was
aged, when his misfortunes crowded
on him, may be hence inferred, that,
altho’ his three friends are stiled old
men,[41] yet in his disputes with them,
he does not seem to honour them for
their age, as Elihu does. To avoid
prolixity, I join with Spanheim in
opinion, that Job’s time coincides
with the bondage of the children of
Israel in Egypt, so as to be neither
posterior to their quitting that country,
nor anterior to their entering it.
But there subsists a dispute of a
different nature between very grave
authors, and that is, whether this
narrative be a fable or a true history:
If I were allowed to interpose my
opinion, I would say, that it is not
a parable invented by ὑποτύπωσις, but a
dramatic poem composed upon a true
history; and perhaps with this design,
that from the example of this
illustrious and upright, yet afflicted
and most miserable man, the people
of Israel might learn to bear with patience,
all those evils and hardships,
which they were daily suffering in
their Egyptian captivity. That this
book is metrical, as well as David’s
Psalms, the Proverbs, Ecclesiastes,
and Solomon’s Song, is generally allowed:
and the persons of the drama
are God, Satan, Job and his
wife, his three friends, and Elihu.
Wherefore it is, says Grotius, a real
fact, but poetically handled.[42] Poetry
was certainly a very ancient manner
of writing, and poets were wont to
embellish true histories in their own
way, as we see in the most ancient
among the Greeks and Romans. And
among the Hebrews likewise, long
after the time above-mentioned, Ezechiel
comprised the history of the departure
out of Egypt in a dramatic
poem; upon which account he is
called by Clemens Alexandrinus, the
poet of Judaic tragedies.[43] Nor indeed,
in my opinion, can there be
found, in this kind of writing, any
thing more admirable, and better
adapted to move the passions than
this piece; whether we regard the
sublimity and elegance of style, the
description of natural things, or in
fine, the propriety of the characters
ascribed to all the persons concerned
in it; all which circumstances are of
the greatest moment in a dramatic
performance.
... Quo propius stes
Te capiet magis.
The nearer you behold,
The more it strikes you.
Before I close this chapter, it may
not be improper to offer my conjecture
concerning the disease of this
illustrious man. But previous to this,
it is proper to remark, that it is not
Job himself, or his friends, but the
author of the book that attributes his
calamities to Satan; for this author’s
intention seems to be, to shew, by a
striking example, that the world is
governed by the providence of Almighty
God, and as the holy angels,
whose ministry God makes use of
in distributing his bountiful gifts,
punctually execute all his commands;
so Satan himself with his agents
are under the power of God, and
cannot inflict any evils on mankind
without the divine permission.
Thus, when the Sons of God (angels)
came and presented themselves before
the Lord, it is said that Satan came
also among them. Now the word
astare to present one’s self, as Moses
Maimonides[44] observes, signifies to be
prepared to receive Jehovah’s commands,
but Satan came of his own
accord and mixed with them without
any summons.
Now as to the disease, it is plain
that it was cuticular, and as it is certain
that the bodies of the Hebrews
were very liable to foul ulcers of the
skin from time immemorial; upon
which account it is, that learned men
are of opinion that they were forbid
the eating of swine’s flesh (which, as
it affords a gross nourishment, and
not easily perspirable, is very improper
food in such constitutions) wherefore
by how much hotter the countries
were which they inhabited,
such as are the desarts of Arabia,
the more severely these disorders
raged. And authors of other nations,
who despised and envied the
Jews, say that it was upon this account
that they were driven out of
Egypt; lest the leprosy, a disease
common among them, should spread
over the country.[45] But there is another
much worse disease, so frequent
in Egypt, that it is said to be endemial
there,[46] though it may also be
engendered in this hot country, I
mean the Elephantiasis. Perhaps it
was this, which is nearly of the same
nature with the leprosy, that had affected
the body of our righteous
man: but on this subject we shall
treat more largely in the subsequent
chapter.

CHAPTER II. — The Leprosy. — FOOTNOTES:
A most severe disease, to which
the bodies of the Jews were
very subject, was the Leprosy. Its
signs recorded in the holy scriptures
are chiefly these. Pimples arose in
the skin; the hair was turned white;
the plague (or sore) in sight was deeper
than the skin, when the disease
had been of long standing; a white
tumour appeared in the skin, in which
there was quick flesh; the foul eruptions
gained ground daily, and at
length covered the whole surface of
the body. And the evil is said to infect,
not only the human body, but
also the cloaths and garments, nay
(what may seem strange) utensils
made of skins or furs, and even the
very walls of the houses. Wherefore
there are precepts laid down for cleansing
these also, as well as the lepers.
Medical authors are of different
opinions concerning the contagion
of this disease. And whereas neither
the Arabian nor Greek physicians,
who have treated largely of the leprosy,
have given the least hint of this
extraordinary force of it, whereby it
may infect cloaths and walls of
houses; the Rabbin doctors dispute,
whether that which seized the Jews,
was not intirely different from the
common leprosy; and they all
affirm, that there never appeared in
the World, a leprosy of cloaths and
houses, except only in Judea, and
among the sole people of Israel.
For my part, I shall now freely
propose, what I think most probable
on the subject. One kind of contagion
is more subtile than another;
for there is a sort, which is taken into
the body by the very breath; such
as I have elsewhere said to exist in
the plague, small pox, and other
malignant fevers. But there is another
sort, which infects by contact
alone; either internal, as the venom
of the venereal disease; or external,
as that of the itch, which is conveyed
into the body by rubbing against
cloaths, whether woollen or linnen.
Wherefore the leprosy, which is a species
of the itch, may pass into a sound
man in this last manner; perhaps also
by cohabitation; as Fracastorius has
observed, that a consumption is contagious,
and is contracted by living with
a phthisical person, by the gliding of
the corrupted and putrefied juices of
the sick into the lungs of the sound
man.[47] And Aretæus is of the same
opinion with regard to the Elephantiasis,
a disease nearly allied to the
Leprosy: for he gives this caution,
“That it is not less dangerous to converse
and live with persons affected
with this distemper, than with those
infected with the plague; because
the contagion is communicated by
the inspired[48] air.”
But here occurs a considerable
difficulty. For Moses says, “If in the
leprosy there be observed a white tumour
in the skin, and it have turned
the hair white in it, and there be
quick flesh within the tumour; it is
an old leprosy in the skin of his flesh.
But if the leprosy spread broad in the
skin, and cover the whole skin of the
diseased from his head even to his
feet, the person shall be pronounced[49]
clean.” But the difficulty contained
in this passage will vanish, if we suppose,
as it manifestly appears to me,
that it points out two different species
of the disease; the one in which
the eroded skin was ulcerated, so that
the quick flesh appeared underneath;
the other, which spread on the surface
of the skin only in the form of
rough scales. And from this difference
it happened, that the former
species was, and the latter was not,
contagious. For these scales, being
dry and light like bran, do not penetrate
into the skin; whereas the purulent
matter issuing from the ulcers
infects the surface of the body. But
concerning the differences of cuticular
diseases, I heartily recommend to
the reader’s perusal, what Johannes
Manardus, equally valuable for his
medical knowledge and the purity of
his Latin, has written upon the subject.[50]
There is no time, in which this
disease was not known; but it was
always more severe in Syria and
Egypt, as they are hotter countries,
than in Greece and other parts of
Europe; and it is even at this day
frequent in those regions. For I
have been assured by travellers, that
there are two hospitals for the leprous
alone in Damascus. And there is a
fountain at Edessa, in which great
numbers of people affected with this
cuticular foulness wash daily, as was
the ancient custom.
Moreover we read the principal
signs, which occur in the description
of the Mosaic leprosy, excepting only
the infection of the cloaths and
houses (of which by and by) recorded
by the Greek Physicians. Hippocrates
himself calls the λεὑκη or white
leprosy Φοινικἱη νȣσος the Phœnician disease.[51]
For that the word φϑινικὴ ought
to be read Φοινικἱη], appears manifestly
from Galen in his Explicatio linguarum
Hippocratis; where he says
that Φοινικἱη νȣσος is a disease which is
frequent in Phœnicia and other eastern
regions.[52] In the foregoing chapter I
said that the Leprosy (Leuce) and the
Elephantiasis, were diseases of great
affinity:[53] in confirmation of which
notion the same Galen observes, that
the one sometimes changes into the
other.[54] Now these two distempers
are no where better described than
by Celsus, who lived about the time
of Augustus Cæsar, and having collected
the works of the principal
Greek writers in physic and surgery,
digested them into order, and turned
them into elegant Latin with great
judgment. Thus he describes the
leprous diseases. Three are three species
of the Vitiligo. It is named ἄλφος,
when it is of a white colour, with some
degree of roughness, and is not continuous,
but appears as if some little
drops were dispersed here and there;
sometimes it spreads wider, but with
certain intermissions or discontinuities.
The μἑλας differs from this in
colour, because it is black, and like a
shadow, but in other circumstances
they agree. The λεύκη has some similitude
with the ἄλφος, but it has more of
the white, and runs in deeper: and
in it the hairs are white, and like
down. All these spread themselves,
but in some persons quicker, in others
slower. The Alphos and Melas come
on, and go off some people at different
times; but the Leuce does not easily
quit the patient, whom it has seized.[55]
But in the Elephantiasis, says the
same author, the whole body is so affected,
that the very bones may be said
to be injured. The surface of the body
has a number of spots and tumors on
it; and their redness is by degrees
changed into a dusky or blackish colour.
The surface of the skin is unequally
thick and thin, hard and soft; and
is scaley and rough: the body is emaciated;
the mouth, legs and feet swell.
When the disease is inveterate, the
nails on the fingers and toes are hidden
by the swelling.[56] And the accounts
left us by the Arabian physicians,
agree with these descriptions.
Avicenna, the chief of them, says
that the Leprosy is a sort of universal
cancer of the whole body.[57] Wherefore
it plainly appears from all that has
been said, that the Syrian Leprosy
did not differ in nature, but in degree
only, from the Grecian, which
was there called λεύκη; and that this
same disease had an affinity with the
Elephantiasis, sometimes among the
Greeks, but very much among the
Arabs. For the climate and manner
of living, very much aggravates all
cuticular diseases.
Now with regard to the infection
of the cloaths, it has been found by
most certain experiments, not only
in the plague, and some other malignant
eruptive fevers, as the small
pox and measles, but even in the
common itch; that the infection,
once received into all sorts of furs or
skins, woollen, linnen, and silk, remains
a long time in them, and
thence passes into human bodies.
Wherefore it is easy to conceive, that
the leprous miasmata might pass from
such materials into the bodies of
those, who either wore or handled
them, and, like seeds sown, produce
the disease peculiar to them. For it
is well known, that the surface of
the body, let it appear ever so soft
and smooth, is not only full of pores,
but also of little furrows, and therefore
is a proper nest for receiving and
cherishing the minute, but very active,
particles exhaling from infected
bodies. But I have treated this subject
in a more extensive manner in
my Discourse on the Plague.[58] And
these seeds of contagion are soon
mixed with an acrid and salt humor,
derived from the blood; which as it
naturally ought, partly to have turned
into nutriment, and partly to have
perspired through the skin, it now
lodges, and corrodes the little scales
of the cuticle; and these becoming
dry and white, sometimes even as
white as snow, are separated from the
skin, and fall off like bran. Now,
altho’ this disease is very uncommon
in our colder climate; yet I have seen
one remarkable case of it, in a countryman,
whose whole body was so
miserably seized by it, that his skin
was shining as if covered with snow:
and as the furfuraceous scales were
daily rubbed off, the flesh appeared
quick or raw underneath. This
wretch had constantly lived in a
swampy place, and was obliged to
support himself with bad diet and
foul water.
But it is much more difficult to account
for the infection of the houses.
For it seems hardly possible in nature,
that the leprous spots should
grow and spread on dry walls, made
of solid materials. But upon a serious
consideration of the different substances
employed in building the
walls of houses, such as stones, lime,
bituminous earth, hair of animals,
and other such things mix’d together;
I thought it probable, that
they may by a kind of fermentation,
produce those hollow greenish or reddish
strokes in sight lower than the
wall (or within the surface)[59] which,
as they in some measure resembled
the leprous scabs on the human body,
were named the Leprosy in a house.
For bodies of different natures, very
easily effervesce upon being blended
together. Wherefore we may reasonably
suppose that this moisture or
mouldiness, gradually coming forth
and spreading on the walls, might
prove very prejudicial to the inhabitants,
by its stinking and unwholesome
smell, without having recourse
to any contagious quality in it. And
somewhat analogous to this is pretty
frequently observable in our own
houses; where, when the walls are
plaistered with bad mortar, the calcarious
and nitrose salts sweat out
upon their surface, of a colour almost
as white as snow. The power of inspecting
their houses was invested in
the priests; who, when they observed
this foulness, gave orders first
to have the walls of the house scraped
all around; and afterwards, if it
continued to break out, to pull down
the house, and carry the materials
out of the city into an unclean place.
I am well aware, that all this is
related, as if God himself had struck
the house with this plague. But it is
well known, that that way of speaking
is not uncommon in the jewish
history; as in unexpected evils and
dreadful calamities, which are sometimes
said to be done by the hand of
God, tho’ they may be produced by
natural causes. Nor can I be easily
induced to believe, with some divines,
that God, who commanded
his people to be always free from
every sort of uncleanness, would
vouchsafe to work a miracle, in order
to inflict this most filthy punishment
on any person. Thus much is
indubitable, that the precepts of the
mosaic law were constituted particularly,
to avert the people from idolatry
and false religion, and at the same
time to keep them clear of all uncleanness.[60]
To this end conspired the
prohibition of eating blood, carrion,
or animals that died spontaneously,
swines flesh, and that of several other
creatures.[61] For all these meats yield
a gross nutriment, which is improper
and prejudicial in diseases of the
skin.
But in order to close these theological
researches with somewhat medical,
I am convinced from experience,
that there is not a better medicine
known against this filthy disease, than
the tincture of Cantharides of the
London Dispensatory. Its remarkable
virtue in this case, is owing to the
diuretic quality of these flies. For
there is a great harmony between the
kidneys and glands of the skin, so
that the humors brought on the latter,
easily find a way thro’ the former,
and are carried off by urine:
and on the other hand, when the
kidneys have failed in the performance
of their functions, an urinous
humor sometimes perspires thro’ the
cuticular pores. But such cathartics
are to be interposed at proper intervals,
as are most proper for evacuating
thick and acrid humors.