A Documentary History of Conservation in AmericaPraeger, 1972 - 422 էջ |
Բովանդակություն
Awareness of the Living World | 3 |
MANS DOMINION | 97 |
THE FLAMING SWORD | 267 |
Հեղինակային իրավունք | |
2 այլ բաժինները չեն ցուցադրվում
Common terms and phrases
abundance acres agriculture Aldo Leopold American animals areas beauty become birds buffalo busy monster Canaan Mountain century Charles Galton Darwin chemical cities civilization coal conservation conservationism crops desert Ducktown E. E. Cummings earth ecological ecologist economic environment environmental farm feet fertility fields fish forest future Gerard Piel grass green ground grow growth hills human hundred increase Indians industrial insects John Muir kill lake land land ethic landscape live look man's Mark Van Doren means ment miles million Mississippi mountain National Park nature nature's ocean parathion perhaps pesticides plain plants poison pollution population portions preserve problem produce region reservoirs rich river road rock selection soil spring streams things Thomas Cole thousand timber tion town trees valley vast vegetable Wasichus waste wild wilderness wind woods