A Documentary History of Conservation in America |
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Page 207
... birds , now so diminished in numbers , or by fish , once a potent factor in insect control , no longer existing in countless lakes , rivers and streams now so polluted that aquatic life has disap- peared . In attempting to find ...
... birds , now so diminished in numbers , or by fish , once a potent factor in insect control , no longer existing in countless lakes , rivers and streams now so polluted that aquatic life has disap- peared . In attempting to find ...
Page 260
... birds are gone . And the evidence is at last all in . At just the moment DDT use finally was limited , the hawk ... birds were given sublethal doses of DDT and dieldrin . In the first , and much more clearly in the second generation ...
... birds are gone . And the evidence is at last all in . At just the moment DDT use finally was limited , the hawk ... birds were given sublethal doses of DDT and dieldrin . In the first , and much more clearly in the second generation ...
Page 365
... birds and animals which he found running at large on his own premises , or take the fish out of the stream that ran through his place , at any time of the year . He owned his own land and as an American citizen had inherent rights . Who ...
... birds and animals which he found running at large on his own premises , or take the fish out of the stream that ran through his place , at any time of the year . He owned his own land and as an American citizen had inherent rights . Who ...
Contents
Awareness of the Living World | 3 |
MANS DOMINION | 97 |
THE FLAMING SWORD | 267 |
Copyright | |
2 other sections not shown
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