Books in Category: Environmental Issues
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Ceylon; an Account of the Island Physical, Historical, and
Sir James Emerson Tennent
1334 downloads
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A Brief History of Forestry.
B. E. Fernow
1317 downloads
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Your National Parks, with Detailed Information for Tourists
Enos A. Mills and Laurence Frederick Schmeckebier
1301 downloads
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Mammals of Mesa Verde National Park, Colorado
Sydney Anderson
1288 downloads
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Cape Cod
Henry David Thoreau
1266 downloads
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Great Disasters and Horrors in the World's History
Allen Howard Godbey
1214 downloads
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Mount Everest, the Reconnaissance, 1921
Charles Howard-Bury, George Mallory, and A. F. R. Wollaston
1203 downloads
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Observations of a Naturalist in the Pacific Between 1896 and 1899, Volume 2
H. B. Guppy
1165 downloads
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Georgicon (Latin)
Virgil
1165 downloads
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Proceedings of the second National Conservation Congress at Saint Paul, September 5-8, 1910
United States. National Conservation Congress
1132 downloads
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The Andes of Southern Peru
Isaiah Bowman
1126 downloads
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Our National Parks
John Muir
1119 downloads
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One Hundred Years in Yosemite: The Story of a Great Park and Its Friends
Carl Parcher Russell
1100 downloads
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The Argentine Republic: Its Development and Progress
Pierre Denis
1094 downloads
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Conservation of marine birds of northern North America:
1070 downloads
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London parks and gardens
Mrs. Evelyn Cecil
1069 downloads
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Exploration of the Valley of the Amazon, Part 1 (of 2)
William Lewis Herndon and Lardner Gibbon
1053 downloads
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The Yellowstone National Park: Historical and Descriptive
Hiram Martin Chittenden
1034 downloads
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Discoveries in Australia, Volume 2
John Lort Stokes
1033 downloads
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American Weasels
E. Raymond Hall
1024 downloads
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Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 2
Alexander von Humboldt and Aimé Bonpland
1001 downloads
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Ukraine, the land and its people : an introduction to its geography
Stepan Rudnytskyi
976 downloads
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Forest Trees of Texas: How to Know Them
Wilbur R. Mattoon and C. B. Webster
972 downloads
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Bird-Lore, Volume I—1899
Various
961 downloads
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Common trees of Pennsylvania
Joseph E. Ibberson, A. B. Mickalitis, J. E. Aughenbaugh, and C. L. Morris
961 downloads