The Whole History Of Life Is A

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

Although Farming Of Any Sort Was Almost As Impossible In The Plains As In The Dry Regions Of Winter Rains Farther West, The Abundance Of Buffaloes Made Life Much Easier In Many Respects.

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.

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

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