As for the articulations of the metatarsus with the phalanges, and of the phalanges with one another, they resemble those of the anterior limb too closely that it should be necessary to study them here. Such a study would be, in this case, but a repetition (see [p. 76], a description of the articulations in question).
THE HEAD IN GENERAL, AND IN SOME ANIMALS IN PARTICULAR.
When we compare, by the examination of one of their lateral aspects, the skull of man and the same region in other mammals, it is easy to observe that the relative development of the cranium and face is entirely different. In the case of man the cranium is large, and the face relatively small; in animals the face is proportionally much more highly developed. The measure of the facial angle permits us to note these differences, and the figures relative to the value of this angle are sufficiently demonstrative to induce us to indicate those which are, in a general way, connected with some of the forms in individuals which here occupy our attention. In the first place, we must remember that the angle in question is more acute, as the cranium is less developed in proportion to the facial region ([Figs. 56] and [57]). It is especially to this character that we wish to draw attention.
| Man | 70° | -80° |
| Cat | 41° | |
| Dog | 28° | -41° |
| Sheep | 20° | -25° |
| Ox | 18° | -20° |
| Ass | 12° | -16° |
| Horse | 11° | -13° |
Fig. 56.—Human Skull: Measure of the Facial Angle by the Method of Camper. Angle BAC = 80°.
The internal wall of the cranial cavity is marked by the dotted line.
