At this period of my labour, I had already proved that the methods by which I had obtained favourable results in principle, became insufficient when exterior circumstances changed; that the salt, of alumine, which I made use of in my injections, was not sufficiently rich in alumine; that the preservation was not certain above a certain degree of temperature; finally, I had found in the acetate of alumine a suitable matter for forming injections eminently preservative. It was then that the reports were read to the Institute and Academy of Medicine. I cite them because they prove, in an authentic manner, the point which I have attained. It was already possible, with these data, to dissect during all seasons, without fearing henceforwards the dangers attached to this employment during the heat of the weather. INSTITUTE OF FRANCE.--_Academy of Sciences_--_Public sitting of Monday, 28th of December, 1835_--_Prize relative to the means of rendering an art or a trade less unhealthy_--_On the preservation of dead bodies, by_ M. Gannal. Your commission has followed with interest the experiments of M. Gannal; it has availed itself of the experience of those of our confrères whose studies oblige them to practise daily dissections, and it believes itself authorized to declare to the Academy, that the means pointed out in the first place by M. Gannal, and that, which is still better, the simple injections of acetate of alumine, at ten degrees of the areometer, which he practised at a later period, answers for preserving bodies for several months, even during the summer. It is assured that no inconvenience results from it in dissections. Your commission has thought it proper to wait until this process should be regularly practised in some amphitheatre of considerable extent, before pronouncing on it in a definitive manner. It is aware how difficult it is to introduce the most simple improvement into routine operations, because, against the employment of them there arises numerous unforeseen obstacles. It remains convinced, however, that this process may render, even now, real services in all countries where dissection meets with difficulties, either from the scarcity of bodies, or from the prejudices of the populace. Taking this circumstance into consideration, together with the obstacles which M. Gannal has encountered, the disgusts which he has had to surmount, in order to complete the experiments which he has made, your commission has the honour to propose to you to award to him, in anticipation, an encouragement of three thousand francs, (six hundred dollars.) _Report of a Commission appointed by the Academy of Medicine, and composed of MM. Sanson, Roux, Dizè, Guèneau de Mussy, Breschet, reporter, to examine a process for the preservation of dead bodies, discovered and proposed by_ M. J. N. Gannal, _chemist_.