Books in Category: Environmental Issues
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The Andes of Southern Peru
Isaiah Bowman
1184 downloads
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Commercial Geography
Jacques W. Redway
1169 downloads
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Observations of a Naturalist in the Pacific Between 1896 and 1899, Volume 2
H. B. Guppy
1155 downloads
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Climate and Time in Their Geological Relations
James Croll
1139 downloads
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Conservation of marine birds of northern North America:
1137 downloads
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A History of Epidemic Pestilences
Edward Bascome
1131 downloads
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Forest Trees of Texas: How to Know Them
Wilbur R. Mattoon and C. B. Webster
1123 downloads
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Proceedings [of the] fourth National Conservation Congress [at] Indianapolis, October 1-4, 1912
United States. National Conservation Congress
1116 downloads
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Cuba Past and Present
Richard Davey
1101 downloads
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Our National Parks
John Muir
1094 downloads
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Mosaic of New Mexico's Scenery, Rocks, and History
1069 downloads
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A year at the shore
Philip Henry Gosse
1066 downloads
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Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 3
Alexander von Humboldt and Aimé Bonpland
1063 downloads
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The Beauties of Nature, and the Wonders of the World We Live In
Sir John Lubbock
1062 downloads
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The National Geographic Magazine, Vol. III. (Complete), 1891
Various
1054 downloads
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North America
Israel C. Russell
1050 downloads
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The Geographical Distribution of Animals, Volume 2
Alfred Russel Wallace
1048 downloads
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Rural Hygiene
Henry N. Ogden
1043 downloads
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Proceedings of the second National Conservation Congress at Saint Paul, September 5-8, 1910
United States. National Conservation Congress
1043 downloads
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The Unexploited West
Ernest J. Chambers
1037 downloads
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Climatic Changes: Their Nature and Causes
Ellsworth Huntington and Stephen Sargent Visher
1017 downloads
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Western Himalaya and Tibet
Thomas Thomson
1010 downloads
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The dawn of astronomy
Sir Norman Lockyer
1001 downloads
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Hygiene: a manual of personal and public health (New Edition)
Sir Arthur Newsholme
998 downloads
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Travels into North America, Volume 1 (of 3)
Pehr Kalm
996 downloads