Today, no less than in the past, the tetrahedral form of the earth and the relation of the tetrahedron to the poles and to the equator preserve the conditions that favor rapid evolution.

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• Ellsworth Huntington:

  Although mountains may guide migrations, the plains are the regions where people dwell in greatest

• Ellsworth Huntington:

  The geysers and hot springs of the Yellowstone are another proof of recent volcanic activity.

• Ellsworth Huntington:

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

• Ellsworth Huntington:

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

• Ellsworth Huntington:

  Fertile soil, level plains, easy passage across the mountains, coal, iron, and other metals imbedde

• Ellsworth Huntington:

  No part of the world can be truly understood without a knowledge of its garment of vegetation, for

• Ellsworth Huntington:

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

• Albrecht Kossel:

  The living cell almost always contains, locked in its interior, the visible or invisible products o

• Albrecht Kossel:

  The more the relationships of the nitrogen-rich substances to the cell nucleus were recognized, the

• James J. Hill:

  The wealth of the country, its capital, its credit, must be saved from the predatory poor as well a