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.

As a matter of fact, an ordinary desert supports a much greater variety of plants than does either a forest or a prairie.

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

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

The buffalo is a surprisingly stupid animal.

The whole history of life is a record of cycles.

It will be a vast boon to mankind when we learn to prophesy the precise dates when cycles of various kinds will reach definite stages.