Books in Category: Environmental Issues
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Cape Cod
Henry David Thoreau
1321 downloads
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A Brief History of Forestry.
B. E. Fernow
1311 downloads
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Mammals of Mesa Verde National Park, Colorado
Sydney Anderson
1282 downloads
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Your National Parks, with Detailed Information for Tourists
Enos A. Mills and Laurence Frederick Schmeckebier
1266 downloads
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Mount Everest, the Reconnaissance, 1921
Charles Howard-Bury, George Mallory, and A. F. R. Wollaston
1256 downloads
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Observations of a Naturalist in the Pacific Between 1896 and 1899, Volume 2
H. B. Guppy
1227 downloads
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Proceedings of the second National Conservation Congress at Saint Paul, September 5-8, 1910
United States. National Conservation Congress
1205 downloads
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The Andes of Southern Peru
Isaiah Bowman
1159 downloads
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Georgicon (Latin)
Virgil
1154 downloads
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Our National Parks
John Muir
1133 downloads
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Ceylon; an Account of the Island Physical, Historical, and
Sir James Emerson Tennent
1121 downloads
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Ukraine, the land and its people : an introduction to its geography
Stepan Rudnytskyi
1093 downloads
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Conservation of marine birds of northern North America:
1090 downloads
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Whales, dolphins, and porpoises of the western North Atlantic : a guide to their identification
Stephen Leatherwood, David K. Caldwell, and Howard Elliott Winn
1064 downloads
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Exploration of the Valley of the Amazon, Part 1 (of 2)
William Lewis Herndon and Lardner Gibbon
1045 downloads
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Mutual Aid: A Factor of Evolution
kniaz Petr Alekseevich Kropotkin
1017 downloads
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American Weasels
E. Raymond Hall
1015 downloads
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Men of the Old Stone Age: Their Environment, Life and Art
Henry Fairfield Osborn
1009 downloads
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Bird-Lore, Volume I—1899
Various
1000 downloads
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Great Disasters and Horrors in the World's History
Allen Howard Godbey
997 downloads
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The Yellowstone National Park: Historical and Descriptive
Hiram Martin Chittenden
969 downloads
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The Argentine Republic: Its Development and Progress
Pierre Denis
944 downloads
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Excursions
Henry David Thoreau
938 downloads
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Forest Trees of Texas: How to Know Them
Wilbur R. Mattoon and C. B. Webster
930 downloads
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London parks and gardens
Mrs. Evelyn Cecil
926 downloads