tans, the dancing melancholy; and that variety known by the name of Melancholia hippantropica, or horfe-jockey phrenzy; the first is commonly caught abroad, the laft more frequently at home.

Under this genus, though I know it is dif ferently claffed by feveral eminent medical writers, I would enumerate the Nostalgia, or that longing defire for particular places, which affects the mind and the health of the patient. In French this is called the Maladie de pays; but the species moft common in my experience is the Maladie de la ville, to which country Ladies in particular are extremely liable. It has this material difference from the other, that the Maladie de pays is cured by allowing the patients to vifit their natal foil. Now, though that may fucceed with natives of countries fuch as Switzerland or our Highlands, who are afflicted with what physicians term the Nostalgia fimplex, and whose complaint a fingle visit to the land of their nativity generally removes; yet, with the disease in queftion, the Maladie de la ville, one, or even two or three vifits to town, rather increase than abate the diforder, and abfence is found to be a much better remedy. My magnetism, however, effectually relieves it. There is another fpecies of the Nostalgia, which we may call the Nostalgia politica, or political love of our country, which my art also entirely

removes, though I must candidly own, that this diforder is frequently cured by other metals befides the magnet. Of this political distemper. there are some species that rather come under the genus of the Tympanites, of which the symptoms are given by nofological writers, "Partis "morbida tumefcentia fonora, cum rejectione "aeris frequenti, et cæterarum partium debi"litate maxima" (a diforder puffed up and windy, with a great weakness of parts). It ufed to be felt in this country only in that particular flighter fort, now little known, which phyficians term the Tympanites Stewartii, but of late it has raged with great violence in every fpecies and degree.

Since I am mentioning Switzerland, I may take notice of another diforder, or rather external deformity, which used to be reckoned peculiar to the inhabitants of the Alps, the Barba Helvetica, or Gouetre, but of late this unnatural protuberance has made amazing progress among the female world in Great Britain; and within these few weeks begins to appear also under the chins of the male.

As I must have already trefpaffed on your patience, I forbear to enumerate a variety of diforders under the clafs of the Locales, or local affections to which the fashionable world is fub

ject, and which I engage perfectly to cure by

my

my medico-magnetical procefs. Such are many of the Dyfofthefia, or depravation of the fenses; for example, the Dyfopia proximorum, and the Pfeudoblepfis mutans, in which diseases perfons quite near, and formerly well known, are neither feen nor remembered. With this last diforder, I have seen some female patients fo much affected, as not to know their husbands from other men; while, among the other fex, I have seen husbands who took half a dozen other women for their wives.

Among the diseases of the ear, one of the most prevalent is the Paracufis imaginaria, to which both fexes are equally liable; and another variety of the fame tribe, more frequent among female patients, called the Sufurrus criticus, or Scandal buzz.

Of the genus Paraphonia, or diforders of the voice, we have frequent occafion to obferve the Paraphonia puberum, with which so many of our fo boys are affected; and the Paraphonia clangens or refonans, which is fo common a diforder among our young ladies.

All the above-mentioned diseases, and many others which I have not room to enumerate, I undertake entirely and effectually to remove by magnetism alone, without the intervention of any other external application, or the exhibition of any medicine whatsoever. I truft, Sir,

the dignity of your Paper is too well known, and I am confcious that my own intentions are too pure, to give room for fuppofing that any thing else than the love of science, and a regard for our fellow-creatures, could induce either of us to communicate to the public, that I poffefs and mean to use this art for the benefit of people of rank and fashion in this metropolis. Such will be informed of the particulars of my plan, by inquiring for Dr. F. at Dunn's Hotel, St. Andrew's-street, left-hand side of the way.

I have the honour to be, &c.

L. F.

Member of many Academies.

N° 100. SATURDAY, December 30, 1786.

AMONG the cautions which prudence and

worldly wisdom inculcate on the young, or at least among those fober truths which experience often pretends to have acquired, is that danger which is faid to refult from the · pursuit of letters and of science, in men destined for the labours of bufinefs, for the active exertions of profeffional life. The abftraction of learning, the fpeculations of fcience, and the vifionary excurfions of fancy, are fatal, it is faid, to the steady purfuit of common objects, to the habits of plodding industry which ordinary business demands. The fineness of mind, which is created or increased by the ftudy of letters, or the admiration of the arts, is fuppofed to incapacitate a man for the drudgery by which profeffional eminence is gained; as a nicely-tempered edge applied to a coarse and rugged material, is unable to perform what a more common inftrument would have fuccefffully atchieved. A young man deftined for law or commerce is advised to look only into his folio of precedents, or his method of book-keeping; and Dulnefs is pointed to his homage, as 05

that