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.

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.

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

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.

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.

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

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.