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the skeletal structure of apes, along with the corresponding illustrations, is contained herein. The softer parts of the same are to be treated in the second volume and made more clear through the addition of copperplate engravings. I would then actually have to move on to the third order (Bradypoda sloths), but since I believe it will be more pleasant for the majority of my readers if I first choose those animals that are more around us, and whose anatomy is especially applicable in various respects, I shall treat them in the following order: after the Pithecis apes, the 8th order Solidungula single-hoofed animals; then the 9th order Bisulca cloven-hoofed animals; then the 6th order Glires rodents; then the 7th order Ferae carnivores; then the 10th order Belluae large beasts; then the 11th order Palmata web-footed animals; then the 12th order Cetacea whales; then the 5th order Chiroptera bats; then the 4th order Sclerodermata hard-skinned animals; and finally the 3rd order Bradypoda.
As much as is necessary, the anatomy of each animal shall also be enlivened with physiological observations, for