INTRODUCTION.

The great success and correspondent utility of D'Israeli's "Curiosities of

Literature," have induced me to add to the ample harvest of that ingenious

writer a few gleanings from another field. They may not afford the same

amusing variety to the general reader, but they may tend to draw some

attention to many important points that affect the chequered lot of

mankind. The progress that every science has rapidly made during the last

half-century has been astounding, and seems to have kept pace with those

struggles of the intellectual faculties to burst from the shackles of

prejudice and error that had ignobly bound them for so many ages. Groping

in darkness, man sought the light, but unfortunately the sudden refulgence

at times dazzled instead of guiding his steps in the pursuit of truth, and

led him into errors as perilous as those that had surrounded him in his

former mental obscurity. His gigantic powers were aroused, but, too

frequently misapplied, they shook the social edifice to its very

foundation. The daring hand of innovation destroyed without contemplating

what better fabric could be raised on the ruin: and while the nobler

faculties with which Providence had gifted us were exerted for the public

weal, the baser parts of our passions sought liberty in licentiousness.

Ambition degenerated into ferocity, scepticism led to impiety, and even

apparent virtue sought to propagate the doctrines of good, by assuming the

"goodly outside" of vice. Religion was overthrown because priestcraft had

deceived, and high rank was held up to detestation because princes and

nobles had been corrupt; and to use Shakespeare's words,

Thus we debase

The nature of our seats, and make the rabble

Call our cares, fears; which will in time break ope

The lock o' the senate, and bring in the crows

To peck the eagles.

In ten short years this mighty revolution in the intellect of man took

place,--in a country too that may be considered the cradle of the future

weal and woe, perhaps of the universe;--in ten short years we beheld

Montesquieu, Raynal, Rousseau, Voltaire, Condillac, Helvetius, beaming

like rising meteors in the dark firmament, and shedding a fearful gleam on

the past, the present, and the future; boldly tracking a path once trodden

with groping steps by Bacon, Descartes, Hobbes, and Gassendi![1] No longer

trusting in blind confidence to the scholastic rules of those dignitaries

of science whose conclusions were considered sufficient to command our

faith, man became sceptical and positive; doubt and disbelief were carried

into every investigation; the reign of _prestiges_ was over; the former

monopolists of power and of science, the two great levers of society (the

more effective since their fulcra rested on timidity and ignorance), were

thrown from their antiquated stand, and found themselves brought face to

face in explanatory contact with their once all-believing and obedient

pupils, but now become a neoteric generation;--the crown and the sceptre,

the cap and the gown, were baubles in their eyes. When the faculty of

reasoning was not able to prevail, the shafts of ridicule were drawn from

the quiver of philosophic wit, and inflicted rankling wounds where they

could not destroy. Ancient systems were exploded with ancient prejudices,

theories were overthrown with dynasties, and doctrines with

governments;--one might have imagined that the formidable power of steam

had been communicated to the mind, illustrating the words of Milton,

The mind is its own place, and in itself

Can make a heaven of hell, and hell of heaven.

Science, now aimed at generalization-the physiologist, the chemist, became

legislators, stepping from the academic chair to the senatorial seat, and

from teaching how to benefit mankind they hurried to destroy, forgetful,

in their ambitious dream, of the noble encomium of Cicero, "_Homines ad

deos nulla se proprius accedunt, quam salutem hominibus dando_."

Philosophy and the study of medicine were now inseparable; this generous

science was not to be attained in books only, but in the study of mankind.

Rousseau thus spoke of physicians when writing to Bernardin de Saint

Pierre:--"_Il n'y a pas d'etat qui exige plus d'etude que le leur; par

tous les pays, ce sont des hommes les plus veritablement savans et

utiles_." Voltaire was of a similar opinion when he thus expressed

himself:--"_Il n'est rien de plus estimable au monde, qu'un medecin qui,

ayant dans sa jeunesse etudie la nature, connu les ressorts du corps

humain, les maux qui le tourmentent, les remedes qui peuvent le soulager,

exerce son etat en s'en defiant, et soigne egalement les pauvres et les

riches_."

How came it then that these great observers did not partake of the

prejudices of Montaigne, Moliere, and other writers, who invariably

stigmatized the practice of physic? simply because it was no longer a

dogmatic profession exercised with scholastic pedantry, but a science

founded on the study of nature, and the immutable laws of sound

philosophy. Although a classic education forms an indispensable part of a

physician's education, yet it is in more important pursuits that his

experience should be obtained: the knowledge of ancient languages is

principally useful in discovering the errors of the olden writers, and in

detecting the barefaced plagiarisms of the moderns.

Much valuable time, however, may be lost in the pursuit of ancient lore;

and Montaigne has justly observed, "There are books which should only be

read, but others that must be learnt." This discrimination is of the

utmost importance; for it may be said of the bookworm's library,

"_Multitudo librorum saepe est nubes testium ignorantiae possessoris_."

Aristippus very properly replied to a man who boasted of his reading, "It

is not those who eat the most that are hale and healthy, but those who can

best digest." Hence the distinction that arose between the philosophical

physician and the dogmatizer. The one was guided by the observation of

facts, the other by glossarial records. Men of erudition are seldom men of

genius. The exploring mind is ever anxious to take flight from the

prison-house of scholastic restraints. Scepticism, moreover, is frequently

the result of deep study, which leads the neophyte into such a labyrinth

of conflicting opinions, that decision and conviction are not easily

attained. Laugier, a most learned German physician, had no faith in his

profession: being reproached with his incredulity, he replied, "_Credo,

Domine, adjuva incredulitatem meam_."

The preceding observations lead to an important, and at the same time a

painful reflection. Will this rapid intellectual progress tend ultimately

to meliorate the condition of mankind? Nations have been compared to Man:

having once reached the acme of prosperity and strength, their vigour like

his gradually declines. History offers nothing more than a chronicle of

such facts. Whatever may be the causes of this degeneracy, is a matter

foreign to my present subject; although I may be permitted to observe by

the way, that it may have arisen from the great disparity and inequality

in the condition of society that tends to lull the wealthy into apathetic

indifference and blind security in their power, while it urges the poor

and the bold to rapine and destructive deeds. This perilous state can only

cease to exist when general education is improved: if this most important

source of real prosperity is attended to, we perhaps need not seek in

particular events, gloomy anticipations of the future.

Whatever may be the destinies of nations in the wreck of empires and the

destruction of men, the philosopher calmly seated on ruins that often

"speak that sometime they were a worthy building," reflects with pride

that science has withstood the withering hand of time. It is true, that in

every study errors have been heaped upon errors; but truth will often

result from falsehood, and doubt that brings on investigation, leads to

comparative certainty. Locke has justly observed, that the faculty of

reasoning seldom or never deceives those who trust to it: its

consequences, from what it builds on, are evident and certain; but that

which it oftenest, if not only, misleads us in, is, that the principles

from which we conclude, the grounds upon which we bottom our reasoning,

are but a part--_something_ is left out which should go into the reckoning

to make it just and exact. This _something_ is the constant pursuit of the

philosopher. The name of a country may be obliterated from a map, the

deeds of heroes be effaced from the annals of the world; the pursuit of

truth can only cease when man is no more;--its light may be veiled by

ignorance, craft, or cupidity,--but it cannot be extinguished. The cities

that gave birth to the illustrious philosophers of old have long ceased to

exist, yet the immortal works of those sages that have escaped the

ravages of time, are still as fresh and luxuriant as when their glorious

oratory enchanted and captivated their disciples' ears.

No science has been cultivated with more difficulty than that of Medicine.

The following papers will show how fearfully it has had to contend in turn

with the power of priestcraft, that sought to monopolize its practice, as

a privilege from the gods, and with the furious opposition of contemporary

members of the profession, whose cupidity and vanity were alarmed by the

introduction of novel doctrines, which they were too old, too busy, or too

obstinate to learn. The extracts from Medical Literature that I have given

will show that most of our modern notions were known to the earliest

writers, and were only improved in succeeding ages, as in like manner our

present doctrines will in all probability be advanced by future

generations. The destruction of kingdoms and of chronicles, the inroads of

barbarism,--the more destructive inroads of ignorance and bigotry, have

not been able to produce a void in the world of science; the catenation of

philosophic inquiry has never been broken in its connexions. Oppression

only riveted the chain more firmly, as if to resist the united power of

man and time. Adversity, which

Like the toad, ugly and venomous,

Wears yet a precious jewel in its head,

has always been considered the best school of practical wisdom: and it is

thus that, amidst the portentous events which have shaken every

institution, and which perhaps still menace further dissolution, the fane

of science has oftentimes been more vividly illumined by the surrounding

conflagration.

The evils that desolate society too frequently arise from the hasty acts

of intemperate men, who deem it necessary to meet the tumultuous demands

of the multitude with decided and energetic, but, at the same time,

perilous measures: the progress of science, on the contrary, is gradual,

and of course more likely to be eventually permanent. While political

speculations are daily becoming more uncertain in their operations, the

triumph of intellectual superiority over prejudice is every where

apparent;--unjust disabilities are being abolished, and the gates of

learning thrown open to every candidate, whatever may be his religious or

his political tenets.

In our country, more than in any other, industry and perseverance have

ever had a fairer chance of attaining social pre-eminence, despite the

shackles imposed upon the candidate for fame by institutions framed in the

darker ages. What then may we not expect, when we behold the bright era

that opens before us,--when exclusive institutions will be considered the

obsolete remnants of expiring bigotry and intolerance! May we not indulge

in the most sanguine hope, that our former glories are only the historic

earnest of still more glorious days? If the spirit of the immortal Locke

could hover over our earth, he would feel, with some degree of pride, that

his admonitions have not been unheeded; and that "those who live mewed up

within their own contracted territories, and will not look abroad beyond

the boundaries that _chance_, _conceit_, or _laziness_ have set to their

inquiries, but live separate from the notions, discourses, and attainments

of the rest of mankind," have at last felt the necessity of yielding to

the voice of reason, or rather of their own welfare.

In the following work I merely rank myself as a compiler. I have only

sketched--sometimes perhaps with too fanciful a pencil, subjects of great

importance, which, by being thus rendered popular, may induce abler pens

to imbody them in a more permanent form. The variety of matter introduced

has obliged me to be discursive, and to have recourse to some repetitions

that were necessary to illustrate subjects not easily abridged. Whenever I

have held up errors and evil passions to exposure, I have not, in one

single instance, I trust, been influenced by any hostility towards men or

parties--ranks or creeds. If I have unwillingly and unwittingly given

offence, I shall most sincerely lament it. My materials have been gleaned

from the works of many contemporaries, whose well-known and

justly-appreciated names will in general appear: but I should be wanting

in candour, did I not avow that I have derived much valuable information

from _Le Dictionnaire des Sciences Medicales_, an elaborate compilation,

containing more "CURIOSITIES OF MEDICAL EXPERIENCE" than any existing

work.

_48, Eaton Square,

January, 1837._

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