From first to last the civilization of America has been bound up with its physical environment.

The whole history of life is a record of cycles.

Except on their southern borders the great northern forests are not good as a permanent home for man.

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

Nevertheless most of the evergreen forests of the north must always remain the home of wild animals and trappers, a backward region in which it is easy for a great fur company to maintain a practical monopoly.

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

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