Signed, MM. Gueneau de Mussy, Dizè, Roux, Sanson, Breschet, Reporter. _Certified._--The perpetual Secretary of the Academy of Medicine. Signed, Pariset. The first report of MM. the members of the commission named by the Academy of Medicine was only provisionary; new facts were discovered to enlighten the conscience of the judges; these facts were presented, and the following report read to the Academy by M. Dizè. _Definitive report of the commission named by the Academy of Medicine, to examine the process of preserving dead bodies, presented by_ M. Gannal. GENTLEMEN,--The Academy had formed a commission composed of MM. Sanson, Guèneau de Mussy, Breschet, Roux, and Dizè, to make known the results of a process presented by M. Gannal, having for its object the preservation of dead bodies destined for dissection. Our honourable colleague, M. Breschet, presented, in a provisionary report, the experiments which had been made, and the success obtained by M. Gannal. But the commission having expressed a desire to give more development to trials which, after the important results already obtained, deserved to fix the attention of the Academy, it proposed to him to multiply, to vary the experiments, to extend them a longer time upon a greater number of subjects. But trials directed in this spirit, exact expenses; the commission did not think it just to impose them upon the author of the process, who had already multiplied expenses; in consequence it proposed to the Academy to demand an indemnity of government for expenses already made, and for the continuance of experiments, without any prejudice to the recompense that M. Gannal would have a right to claim. The Academy seconded the wishes of the commission; it obtained from the minister of public instruction the sum necessary for covering all expenses made, and for those to be made in the continuance of the experiments. M Gannal made a series of preliminary experiments, which served him as so many starting points on the road to the discovery of the means of preserving animal matters; these labours subsequently conducted to the research of an antiseptic sufficiently powerful, which unites to the property of preserving bodies, that of not altering the organic tissues, and not too much weakening their natural colours, so important to anatomical demonstrations. We shall cite the most important experiments, so that you may be able to appreciate the process which is proposed.