Books in Category: Environmental Issues
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Climatic Changes: Their Nature and Causes
Ellsworth Huntington and Stephen Sargent Visher
1484 downloads
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Glacier National Park [Montana]
United States. Department of the Interior
1473 downloads
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Cosmos: A Sketch of the Physical Description of the Universe, Vol. 1
Alexander von Humboldt
1464 downloads
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A year at the shore
Philip Henry Gosse
1449 downloads
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Rural Hygiene
Henry N. Ogden
1427 downloads
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Travels into North America, Volume 1 (of 3)
Pehr Kalm
1419 downloads
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Forest Trees of Texas: How to Know Them
Wilbur R. Mattoon and C. B. Webster
1410 downloads
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The Andes of Southern Peru
Isaiah Bowman
1384 downloads
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Mosaic of New Mexico's Scenery, Rocks, and History
1375 downloads
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Western Himalaya and Tibet
Thomas Thomson
1374 downloads
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Cape Cod
Henry David Thoreau
1372 downloads
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The National Geographic Magazine, Vol. III. (Complete), 1891
Various
1353 downloads
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A History of Epidemic Pestilences
Edward Bascome
1345 downloads
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Travels into North America, Volume 3 (of 3)
Pehr Kalm
1343 downloads
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North America
Israel C. Russell
1335 downloads
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The Beauties of Nature, and the Wonders of the World We Live In
Sir John Lubbock
1323 downloads
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Cuba Past and Present
Richard Davey
1323 downloads
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Georgicon (Latin)
Virgil
1321 downloads
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The dawn of astronomy
Sir Norman Lockyer
1298 downloads
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Bird-Lore, Volume I—1899
Various
1295 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
1251 downloads
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African Nature Notes and Reminiscences
Frederick Courteney Selous
1247 downloads
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Conservation of marine birds of northern North America:
1235 downloads
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A Guide to the Mount's Bay and the Land's End
John Ayrton Paris
1233 downloads
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Standard methods for the examination of water and sewage
American Public Health Association. Laboratory Section, American Chemical Society, and Association of Official Agricultural Chemists
1224 downloads