The mixture of two parts of alum, of two parts of salt, and of one part of nitre, in a sufficient quantity of water to mark the liquor at ten degrees, injected, preserves bodies very well bathed in the same liquor, but only when the temperature is under ten degrees for a more elevated temperature it is necessary to warm the liquid, and add the salt mixture until the areometer marks twenty-five or thirty degrees. Of all the saline substances which have given me satisfactory results, the aluminous deliquescent salts are to be preferred. The acetate and chloride of alumine have perfectly succeeded with me. In fine, a mixture of equal parts, of chloride of alumine at twenty degrees, and of the acetate of alumine at ten degrees, may be considered, employed in injection, as a good method which we now possess for the preservation of bodies. Now that I have explained the action of chemical agents upon animal matters, I shall enter upon the details of experiments. I presented my work to the Institute on the fourth of March, 1833. The Academy of Sciences named for its examination, a commission composed of MM. Savart, Flourens, Chevreuil, and Serres, reporter. A few days after, M. Serres placed at my disposition, at the Hospital La Pitié, and in his private cabinet, a corpse, which I bathed in a tub containing a solution at ten degrees, two parts of alum, two parts of common salt, and one part of nitre. This subject, repeatedly examined, appeared to be well preserved. At the end of about six weeks it was opened; the flesh and the viscera were in a good state of preservation, but particular circumstances put an end to this examination. On the twelfth of November, 1834, the administration of Hospitals presented two subjects to me, which M. Orfila authorized me to place in one of the grand pavilions of the practical school of the faculty of medicine. These two subjects were bathed in a liquid of ten degrees. The second of December the commission of the Academy of Sciences came to examine these two subjects, which were consigned to dissection. On the same day another subject was given to me. This was injected with eight quarts of the saline solution at ten degrees. At the end of December, these three subjects were in a good state of preservation; it was remarked, however, that the skin as well as the flesh, had slightly assumed a decayed consistence and colour; the deep organs, which had not been in immediate contact with the liquid, remained almost natural. From this period until the end of April, the commission frequently assembled and confirmed these results. A commission constituted by the Academy of Medicine early in March, examined these same subjects, and demanded new experiments. The first subject was injected with coloured fat, and then bathed. The corpse injected on the second of December, was also injected with coloured fat.