Natural Selection could not develop an ape's brain in advance of his necessities.

But here we have a prophetic structure; man's head developed far in advance of his necessities.

Here is a power at work superior to Natural Selection.
With such an instrument man has gone to work and supplied his deficiencies.

Inferior to many animals in strength and speed, he has manufactured weapons, and subdued them all, asserting himself as the lord of creation, conquering even the mighty mastodon, and piercing the huge Caledonian whale with his reindeer harpoon.

He has remedied his want of hair by the manufacture of clothing from the spoils of his victims.