Curiously enough man's body and his mind appear to differ in their climatic adaptations.

The Negro, however, has been tested on an extensive scale.

A journey of four hundred and thirty miles can be made in any part of the United States, but in Turkey it takes as many days.

Fertile soil, level plains, easy passage across the mountains, coal, iron, and other metals imbedded in the rocks, and a stimulating climate, all shower their blessings upon man.

Although mountains may guide migrations, the plains are the regions where people dwell in greatest numbers.

The human organism inherits so delicate an adjustment to climate that, in spite of man's boasted ability to live anywhere, the strain of the frozen North eliminates the more nervous and active types of mind.

The whole history of life is a record of cycles.