Although the general outlines of facial evolution as sighted by Camper are in accord with my own views, yet, as regards accuracy, this angle is not an ideal from whence to study face degeneracy, since the line does not fall low enough to include the chin, and also, as I have elsewhere shown, in the degenerate, the ear varies as much as one to one and one-half inches upon heads of different individuals. Frequently, in the degenerate classes, the ears of the same individual differ as much as one inch in height.
FIG. 22.
An ideal line, from whence to study a degenerate face, should be drawn perpendicularly from the supra-orbital ridge intersecting the upper and lower jaw and chin. While the chin of the Apollo Belvedere falls slightly inside of this line, yet this is hardly perceptible. Having now fixed a standard from which to study the degenerate face, it should be remembered that jaws which protrude beyond this line are atavistic, and those which recede are even more degenerate.
FIG. 23.
