Now if we examine this belt, and compare the different parts of it with one another, we shall be struck by a remarkable fact.

The peoples inhabiting it grow steadily more personal as we go west.

So unmistakable is this gradation of spirit, that one is tempted to ascribe it to cosmic rather than to human causes.

It is as marked as the change in color of the human complexion observable along any meridian, which ranges from black at the equator to blonde toward the pole.

In like manner, the sense of self grows more intense as we follow in the wake of the setting sun, and fades steadily as we advance into the dawn.