To use the author’s own words, “two days’ application in this way, will beautify any subject.” The face of a corpse thus punctured, and supplied with compresses moistened with this acid, would be preserved, or even restored to its natural appearance, when discoloured by incipient putrefaction. John Hunter and other contemporaneous surgeons were in the habit of using diluted nitric acid for this purpose, but we have frequently seen this application fail, in our climate, when puncturation was omitted. Most beautiful specimens of _natural skeletons_ may be obtained by employing _tadpoles_; the animal must be divested of its skin, and the bones roughly cleaned of their flesh, and then suspended in water, exposed to the depredations of the tadpoles, who delicately remove, atom by atom, the softened flesh still adhering to the skeleton, by means of their suction mouths, in the course of a few hours, during warm weather; when the preparation is to be placed in position and dried. The aid of the ant has also been successfully invoked for a similar purpose. A small quadruped prepared as above, is placed in a box, and deposited in the vicinity of an ant’s nest; these industrious operatives rapidly remove the flesh from the bones. As approaching the nearest to natural objects, we can securely recommend the accurate anatomical preparations in _Carton_, of Dr. Azoux, of Paris: the annual course of popular anatomy which he delivers, and which we have had the satisfaction of attending, are admirably and accurately illustrated by this means. These preparations consist not only of every part of the human body, but of entire subjects, both male and female, including the gravid uterus. The only objection that can be urged against them, is the high price, say six hundred dollars for the entire adult subject. Equally valuable is the more recent invention of another Parisian artist, of a material which he denominates “Carton pierreuse,” which appears to be a composition of “papier maché” and ground plaster of Paris, with which he executes anatomical models of great beauty and accuracy, including innumerable pieces of morbid anatomy, coloured to nature. Either of the above preparations are vastly superior to those in wax; they are more durable and more natural. The study of minute anatomy has been yet further essentially aided, by the representations of the nerves, arteries, and veins of the head and face, by means of wires enveloped in wax, coloured after nature; these constitute very accurate and handsome preparations, and are the ornament of anatomical museums, as manufactured by M. Guy, adjoining the School of Medicine in Paris.