Year by year we are learning that in this restless, strenuous American life of ours vacations are essential.

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.

For the source of any characteristic so widespread and uniform as this adaptation to environment we must go back to the very beginning of the human race.

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

The buffalo is a surprisingly stupid animal.

The coast of British Columbia was one of the three chief centers of aboriginal America.

In fact, the history of North America has been perhaps more profoundly influenced by man's inheritance from his past homes than by the physical features of his present home.