In America the most widespread type of forest is the evergreen coniferous woodland of the north.

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

No part of the world can be truly understood without a knowledge of its garment of vegetation, for this determines not only the nature of the animal inhabitants but also the occupations of the majority of human beings.

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.

America forms the longest and straightest bone in the earth's skeleton.

Although farming of any sort was almost as impossible in the plains as in the dry regions of winter rains farther west, the abundance of buffaloes made life much easier in many respects.

We are learning, too, that the love of beauty is one of Nature's greatest healers.