The Whole History Of Life Is A

Although Mountains May Guide Migrations, The Plains Are The Regions Where People Dwell In Greatest Numbers.

Man Could Not Stay There Forever. He Was Bound To Spread To New Regions, Partly Because Of His Innate Migratory Tendency And Partly Because Of Nature's Stern Urgency.

Except On Their Southern Borders The Great Northern Forests Are Not Good As A Permanent Home For Man.

Year By Year We Are Learning That In This Restless, Strenuous American Life Of Ours Vacations Are Essential.

The Negro, However, Has Been Tested On An Extensive Scale.