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for comparative anatomy. I made use of the existing writings on this subject, but to my dissatisfaction, I soon saw that there were still large gaps, especially in the anatomy of mammals, and that most of it consisted only of fragments. I therefore came upon the idea of working on this myself with the best of my ability, began, and now dare, not without fear of too harsh a criticism, to present to the public the first volume of my work.
I shall treat all the animals according to the Blumenbachian original: "Blumenbachschen" classification of mammals *) Joh. Friedr. Blumenbach, Handbook of Natural History. Göttingen, 1782, 8vo, p. 54., and I have therefore made the beginning with the animals most similar to humans, which have already given occasion for many romantic ideas, namely with the apes **) Ord. II. Pitheci (Apes).. Of this first volume, aside from the utility and the literature regarding the anatomy of mammals, only the doctrine of