SIDE-VIEW OF CHIMPANZEE'S HEAD.

(Compare with opposite picture.)]

[Illustration: _After a model by J. H. McGregor._

PROFILE VIEW OF HEAD OF PITHECANTHROPUS, THE JAVA APE MAN, RECONSTRUCTED

FROM THE SKULL-CAP.]

[Illustration: THE FLIPPER OF A WHALE AND THE HAND OF A MAN

In the bones and in their arrangement there is a close resemblance in

the two cases, yet the outcome is very different. The multiplication of

finger joints in the whale is a striking feature.]

Some men, oftener than women, show on the inturned margin of the

ear-trumpet or pinna, a little conical projection of great interest. It

is a vestige of the tip of the pointed ear of lower mammals, and it is

well named _Darwin's point_. It was he who described it as a "surviving

symbol of the stirring times and dangerous days of man's animal youth."

§ 2

The Outline of Science, Vol. 1 (of 4) A Plain Story Simply Told · 第 293 / 470 题