Books in Category: Environmental Issues
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Bird Guide: Land Birds East of the Rockies, from Parrots to Bluebirds
Chester A. Reed
1482 downloads
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A supplementary report on the results of a special inquiry into the practice of interment in towns.
Edwin Chadwick
1468 downloads
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Proceedings [of the] fourth National Conservation Congress [at] Indianapolis, October 1-4, 1912
United States. National Conservation Congress
1428 downloads
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Aspects of nature, in different lands and different climates (Vol. 1 of 2)
Alexander von Humboldt
1427 downloads
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Proceedings of the second National Conservation Congress at Saint Paul, September 5-8, 1910
United States. National Conservation Congress
1423 downloads
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Conservation of marine birds of northern North America:
1408 downloads
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The Arctic World : Its plants, animals, and natural phenomena. With a historical sketch of Arctic discovery, down to the British polar expedition: 1875-76.
Anonymous
1406 downloads
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Our National Parks
John Muir
1381 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
1357 downloads
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Georgicon (Latin)
Virgil
1351 downloads
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Birds useful and birds harmful
J. A. Owen and Ottó Herman
1310 downloads
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A Report on Washington Territory
William Henry Ruffner
1289 downloads
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Berkshire
Horace Woollaston Monckton
1276 downloads
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The ivory king : A popular history of the elephant and its allies
Charles Frederick Holder
1274 downloads
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Wayside and woodland trees : a pocket guide to the British sylva
Edward Step
1263 downloads
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The Theory of Environment
Armin Hajman Koller
1260 downloads
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The Game Fish, of the Northern States and British Provinces
Robert Barnwell Roosevelt
1260 downloads
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Mammals of Mesa Verde National Park, Colorado
Sydney Anderson
1257 downloads
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The History of Badlands National Monument and the White River (Big) Badlands of South Dakota
Ray H. Mattison and Robert A. Grom
1254 downloads
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Discoveries in Australia, Volume 2
John Lort Stokes
1245 downloads
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The Healthy Life, Vol. V, Nos. 24-28
Various
1233 downloads
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The Storm-Cloud of the Nineteenth Century
John Ruskin
1231 downloads
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Creation of the Teton Landscape: The Geologic Story of Grand Teton National Park
John C. Reed and J. D. Love
1201 downloads
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Extinct birds : An attempt to unite in one volume a short account of those birds which have become extinct in historical times
Baron Lionel Walter Rothschild Rothschild
1190 downloads
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The useful trees of northern Nigeria
Hugh Vandervaes Lely
1186 downloads