January 23, Snow a foot deep. the sun's rays. Thermometer at noon 103° on the grass. 106 against a wall exposed to November. 12. Ice in the gutters the first time.-14th, first snow. December. 18. Navigation obstructed.-20th, thermometer in some situations 9o. 27th, Navigation free. A brief and convenient Method of preparing Emetic Tartar. Mr. BUCHHOLZ, Apothecary at Erfult. By THE glass of antimony and purified chrystals of tartar finely pulverifed, are to be mixed together with distilled water to the confiftence of honey, which being fuffered to stand two or three weeks in a warm place, and stirred feveral times a day, will be easily diffolved by boiling water, with the exception of a few grains of gravelly particles, and a confiderable quantity of a fubftance fimilar to Kermes mineral. Mr. B. found by experiment, that for thoroughly faturating the whole quantity of purified tartar employed for the operation, the proportion of one part and a half of the glafs of antimony, is required to two of chrystals of tartar; and from three and a quarter ounces of this mixture, he obtained, according to his experiments, two ounces and three drachms of chrystallized emetic tartar: the Kermes mineral, remaining from 12 drachms of glass of antimony, amounted to about one drachm and a half. At a temperature of 10 to 12o Reaumur, fourteen and two-third parts of distilled water diffolved one part of emetic tartar, according to his experiments, which differs greatly from the common opinion, viz. that 80 parts of water are requifite for one part of emetic tartar. At 80° Reaum. 100 parts of distilled water diffolved 53 parts of chryftallized emetic tartar. Pure emetic tartar ought to be quite white, as any admixture of yellowish colour proves its being impregnated with iron., Medical Phyfical Journal. The artificial mufk has been found by Dr. Hufeland, of eminent fervice in all kinds of nervous diseases, as well as in the hooping cough. As it is of a waxy and refinous confiftence, it is most conveniently administered in the form of emulfion, made by triturating ten or twelve grains in a mortar with a few VOL. I. X X almonds, and diluted with 5 or 6 ounces of water.* Of this, two tea-fpoonfuls are given every two hours, to a child from one to two years of age, and in a rifing proportion to older children. It generally produced a fudorific effect, while it obviously diminished and alleviated the fits of coughing-an eruption not unfrequently attended, in many inftances assuming the form of the true nettle rafh; and by this favourable crifis, foon terminated the disease. Mr. Bartley, furgeon at Bradford, confirms the efficacy of the artificial musk in hooping cough, and in feveral other complaints. His mode of giving it is in the form of a tincture, prepared by diffolving 2 drachms of the refinous extract abovementioned, in 8 ounces of alkohol: two cafes of its efficacy are recorded, and he is of opinion, that in this complaint it stands unrivalled. The fame gentleman ftates a cafe of diabetes mellitus, in which its efficacy was very extraordinary, after other means. had failed of fuccefs. Dr. Bellamy of Prefton, in the 8th Vol. of the Medical and Phyfical Journal, p. 41, gives a remarkable inftance of the efficacy of the artificial mufk, as recommended by Profeffor Hufeland, in the cure of the hooping cough. The patient was not benefitted by the remedies in common ufe; "the cough returning, or rather increasing, with greater violence than ever, The mode of preparing the artificial musk is thus related in the 1st vol. of the Medical and Physical Journal, p. 181. “Three drachms and a half of concentrated nitric acid are gradually dropped on one drachm of rectified oil of amber, which is previously poured into a winę glafs. When this mixture is agitated, it grows hot and emits offenfive fumes, against the inhalation of which the operator must be on his guard. After having stood 24 hours, the compound acquires a refinous appearance; at the bottom of it we find a strongly acid fluid, but on the top of it, a yellow refin, resembling musk in its fragrance. This refinous matter must be repeatedly washed, first in cold, and then in hot water, until the acid taste be completely removed. Thus we obtain a substance which is equal in flavour as well as in its medicinal properties, to the genuine natural musk, which is perfectly soluble in spirit of wine, which, like other refins, can be precipitated by water, and which always retains the fcent acquired by this fimple chemical process." the child whilft in the fit bringing up blood by the mouth, and wafting in flesh and ftrength rapidly." Three drops were given twice a-day, and gradually increased to fix drops three times a-day. "The relief obtained was really fudden and furprising; indeed, the proportion of benefit was greatest in the first 24 hours; the difeafe then abated, and the child was pofitively well of the cough in ten days. Its health and fpirits returned as that went off, and in about a month were quite re-established," and continued fo at the time of his communication. Profeffor Thomanis of Wurtzburgh recommends the use of powdered charcoal in the tinea capitis, as a topical application; "and which," fays the Editor of the Medical and Chirurgical Review, "according to the testimony here adduced, may be regarded as one of the most efficacious remedies we possess against tinea capitis. The following cafe will ferve to illustrate the author's practice." "Barbara Metz, thirteen years of age, had been fupported from infancy by charity, and confequently had been greatly neglected in refpect of cleanliness. Although fhe had gone through the ordinary diseases of infancy without danger, she continued pale, cachectic, and diminutive in fize, and had in fact fuffered all the privations of a state of poverty. She was admitted into the Clinical Inftitute on the firft of February, without any other difeafe than the marks of general weakness, and a tinea which covered her whole head. The integuments were eroded by a multitude of fmall ulcerations, which dif charged an ichorous humour, fo fetid as to be scarcely bearable. The hair glued together formed maffes, under which were lodged an incredible number of vermin, producing altogether a horrible appearance. "A confideration of all the circumstances led to the determi nation of treating the difeafe in merely a local manner. The hair was cut off as closely as possible, and towards evening the ulcerated parts were covered with powder of charcoal, covering the |