The Negro, However, Has Been Tested On

As A Matter Of Fact, An Ordinary Desert Supports A Much Greater Variety Of Plants Than Does Either A Forest Or A Prairie.

Geologists Are Rapidly Becoming Convinced That The Mammals Spread From Their Central Asian Point Of Origin Largely Because Of Great Variations In Climate.

Nevertheless Most Of The Evergreen Forests Of The North Must Always Remain The Home Of Wild Animals And Trappers, A Backward Region In Which It Is Easy For A Great Fur Company To Maintain A Practical Monopoly.

In America The Most Widespread Type Of Forest Is The Evergreen Coniferous Woodland Of The North.

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