I shall therefore terminate all that is relative to this first portion of my labour, by the report of the committee of the members of the Institute. They have admitted the result of my labours to be of great utility, and that it merits the encouragement of the grand Monthyon prize, founded on the discovery of any means calculated to remedy the insalubrity of any art or profession. The following is the report: _Upon the preservation of the dead body, by_ M. Gannal. The Academy is well aware, having recommended an encouragement to the author, that M. Gannal has made numerous experiments on the preservation of dead bodies, either with the view of making dissecting amphitheatres more healthful, or to obtain a method of embalming at the same time economical and certain. As far as concerns embalming of dead bodies, it will be conceded that before advancing an opinion, it would be necessary to prolong the proofs for several years, which has not yet been accomplished for the process under consideration. Besides, as this investigation would be without the bounds of the duties of your commission on noxious arts, even when it shall have attained perfection, we were only disposed to examine it under the head of instruction. The judgment which we are about to give should then be considered as applying exclusively to processes concerning the amphitheatres of dissection. In this latter case, the experiments being less tedious, could be varied and multiplied sufficiently to demonstrate that we actually possess a process capable of preserving dead bodies, during the longest period that the most minute dissection could exact. This process is of an easy and economical execution; it consists in the employment of matters which have nothing poisonous in them. In fine, after many trials, the author has fixed upon the following method; he injects an aluminous salt dissolved in water, by one of the carotids; a few quarts of the liquid is sufficient, and the body abandoned to the open air is preserved for a long time from putrefaction; sometimes it even ends in becoming dry or mummified. The author made use of the acetate of alumine, prepared by the acetate of lead and the sulphate of alumine and potash. This acetate of alumine at 18° of the areometer of Baumè, and in the quantity of five or six quarts, is sufficient to preserve a body for five or six months. He has also used the simple sulphate of alumine in order to procure the acetate of this base. With one killogram of the simple sulphate of alumine in mass, two hundred and ten grains of acetate of lead, and two quarts of water, may be obtained, the necessary quantity of the mixture to preserve a body for two months. By the employment of these processes, the preservation of bodies without odour may be calculated upon, for twenty days, a month, six weeks, more or less, according to the circumstances of temperature, state of the body, and quantity of the liquor actually injected into the vessels.