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

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

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

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.

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.

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.

Thus the races, though alike in their physical response to climate, may possibly be different in their mental response because they have approached America by different paths.