He has enriched his Translation with an excellent Preface, which is chiefly employed in a just and beautiful Portrait and Contrast of the true, and of the false Physician; with which I should have done myself the Pleasure to have adorned the present [4] Edition; if the Size of this Volume, already too large, had not proved an Obstacle to so considerable an Addition; and if the Manner, in which Mr. Hirzel speaks of its Author, had permitted me with Decency to publish his Preface. I have been informed by some Letters, that there have been two other German Translation of it; but I am not informed by whom. However, M. Hirzel's Preface, his own Notes, and some Additions with which I have furnished him, renders his Edition preferable to the first in French, and to the other German Translations already made.
The Second Edition is that, which the younger Didot, the Bookseller, published towards the End of the Winter at Paris. He had requested me to furnish him with some Additions to it, which I could not readily comply with.
The Third Edition is a Dutch Translation of it, which will be very speedily published by M. Renier Aremberg, Bookseller at Rotterdam. He had begun the Translation from my first Edition; but having wrote to know whether I had not some Additions to make, I desired him to wait for the Publication of this. I have the good Fortune to be very happy in my Translators; it being M. Bikker, a celebrated Physician at Rotterdam (so very advantagiously known in other Countries, by his beautiful Dissertation on Human Nature, throughout which Genius and Knowledge proceed Hand in Hand) who will present his Countrymen with the Advice to the People, in their own Language: and who will improve it with such Notes, as are necessary for a safe and proper Application of its Contents, in a Climate, different from that in which it was wrote. I have also heard, there has been an Italian Translation of it.
After this Account of the foreign Editions, I return to the present one, which is the second of the original French Treatise. I shall not affirm it is greatly corrected, with Respect to fundamental Points: for as I had advanced nothing in the first, that was not established on Truth and Demonstration, there was no Room for Correction, with Regard to any essential Matters. Nevertheless, in this I have made, 1, a great Number of small Alterations in the Diction, and added several Words, to render the Work still more simple and perspicuous. 2, The typographical Execution of this is considerably improved in the Type, the Paper and Ink, the Spelling, Pointing, and Arrangement of the Work. 3, I have made some considerable Additions, which are of three Kinds. Not a few of them are new Articles on some of the Subjects formerly treated of; such as the Articles concerning Tarts and other Pastry Ware; the Addition concerning the Regimen for Persons, in a State of Recovery from Diseases; the Preparation for the Small Pocks; a long Note on the Jesuits Bark; another on acid Spirits; one on the Extract of Hemlock: besides some new Matter which I have inserted; such as an Article with Regard to proper Drinks; one on the Convulsions of Infants; one on Chilblains; another on Punctures from Thorns; one upon the Reason of the Confidence reposed in Quacks, and the thirty-first Chapter entirely: in which I have extended the Consideration of some former Articles, that seemed to me a little too succinct and short. There are some Alterations of this last, this additional, Kind, interspersed almost throughout the whole Substance of this Edition; but especially in the two Chapters relating to Women and Children.
The Objects of the [XXXI Chapter] are such as require immediate Assistance, viz. Swoonings, Hæmorrhages, that is, large spontaneous Bleedings; the Attacks of Convulsions, and of Suffocations; the Consequences of Fright and Terror; Disorders occasioned by unwholesome or deadly Vapours; the Effects of Poison, and the sudden Invasions of excessive Pain.
The Omission of this Chapter was a very material Defect in the original Plan of this Work. The Editor of it at Paris was very sensible of this Chasm, or Blank, as it may be called, and has filled it up very properly: and if I have not made Use of his Supplement, instead of enlarging myself upon the Articles of which he has treated, it has only been from a Purpose of rendering the whole Work more uniform; and to avoid that odd Diversity, which seems scarcely to be avoided in a Treatise composed by two Persons. Besides which, that Gentleman has said nothing of the Articles, which employ the greatest Part of that Chapter, viz. the Swoonings, the Consequences of great Fear, and the noxious Vapours.
Before I conclude, I ought to justify myself, as well as possible, to a great Number of very respectable Persons both here and abroad, (to whom I can refuse nothing without great Chagrine and Reluctance) for my not having made such Additions as they desired of me. This however was impossible, as the Objects, in which they concurred, were some chronical Distempers, that are entirely out of the Plan, to which I was strictly attached, for many Reasons. The first is, that it was my original Purpose to oppose the Errors incurred in Country Places, in the Treatment of acute Diseases; and to display the best Method of conducting such, as do not admit of waiting for the Arrival of distant Succour; or of removing the Patients to Cities, or large Towns. It is but too true indeed, that chronical Diseases are also liable to improper Treatment in small Country Places: but then there are both Time and Convenience to convey the Patients within the Reach of better Advice; or for procuring them the Attendance of the best Advisers, at their own Places of Residence. Besides which, such Distempers are considerably less common than those to which I had restrained my Views: and they will become still less frequent, whenever acute Diseases, of which they are frequently the Consequences, shall be more rationally and safely conducted.
The second Reason, which, if alone, would have been a sufficient one, is, that it is impossible to subject the Treatment of chronical Distempers to the Capacity and Conduct of Persons, who are not Physicians. Each acute Distemper generally arises from one Cause; and the Treatment of it is simple and uniform; since those Symptoms, which manifest the Malady, point out its Cause and Treatment. But the Case is very differently circumstanced in tedious and languid Diseases; each of which may depend on so many and various Causes (and it is only the real, the true Cause, which ought to determine us in selecting its proper Remedies) that though the Distemper and its Appellation are evidently known, a meer By-stander may be very remote from penetrating into its true Cause; and consequently be incapable of chusing the best Medicines for it. It is this precise and distinguishing Discernment of the real particular Cause [or of the contingent Concurrence of more than one] that necessarily requires the Presence of Persons conversant in the Study and the Practice of all the Parts of Physick; and which Knowledge it is impossible for People, who are Strangers to such Studies, to arrive at. Moreover, their frequent Complexness; the Variety of their Symptoms; the different Stages of these tedious Diseases [not exactly attended to even by many competent Physicians] the Difficulty of ascertaining the different Doses of Medicines, whose Activity may make the smallest Error highly dangerous, &c. &c. are really such trying Circumstances, as render the fittest Treatment of these Diseases sufficiently difficult and embarrassing to the most experienced Physicians, and unattainable by those who are not Physicians.
A third Reason is, that, even supposing all these Circumstances might be made so plain and easy, as to be comprehended by every Reader, they would require a Work of an excessive Length; and thence be disproportioned to the Faculties of those, for whom it was intended. One single chronical Disease might require as large a Volume as the present one.
But finally, were I to acknowledge, that this Compliance was both necessary and practicable, I declare I find it exceeds my Abilities; and that I am also far from having sufficient Leisure for the Execution of it. It is my Wish that others would attempt it, and may succeed in accomplishing it; but I hope these truly worthy Persons, who have honoured me by proposing the Achievement of it to myself, will perceive the Reasons for my not complying with it, in all their Force; and not ascribe a Refusal, which arises from the very Nature of the thing, either to Obstinacy, or to any Want of an Inclination to oblige them.