Books in Category: Environmental Issues (sorted by popularity)
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The Polar World
G. Hartwig
379 downloads
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Rural Hygiene
Henry N. Ogden
378 downloads
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The Game Fish, of the Northern States and British Provinces
Robert Barnwell Roosevelt
373 downloads
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Metabolic Adaptation to Climate and Distribution of the Raccoon Procyon Lotor and Other Procyonidae
John N. Mugaas, John Seidensticker, and Kathleen P. Mahlke-Johnson
372 downloads
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One Hundred Years in Yosemite: The Story of a Great Park and Its Friends
Carl Parcher Russell
371 downloads
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A History of Epidemic Pestilences
Edward Bascome
369 downloads
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The Malay Archipelago, Volume 2
Alfred Russel Wallace
367 downloads
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Cottage Building in Cob, Pisé, Chalk and Clay: A Renaissance (2nd edition)
Clough Williams-Ellis
367 downloads
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Missions au Sahara, tome 1 : Sahara algérien (French)
E. F. Gautier
364 downloads
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Atoms, Nature, and Man: Man-made Radioactivity in the Environment
Neal O. Hines
360 downloads
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Landesverein Sächsischer Heimatschutz — Mitteilungen Band XIII, Heft 3-4 : Monatsschrift für Heimatschutz, Volkskunde und Denkmalpflege (German)
358 downloads
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A Report on Washington Territory
William Henry Ruffner
356 downloads
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Men of the Old Stone Age: Their Environment, Life and Art
Henry Fairfield Osborn
353 downloads
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A Guide to the Mount's Bay and the Land's End
John Ayrton Paris
351 downloads
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Millions from Waste
Frederick Arthur Ambrose Talbot
351 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
346 downloads
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A History of Southern Utah and Its National Parks (Revised)
Angus M. Woodbury
345 downloads
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Common trees of Pennsylvania
Joseph E. Ibberson, A. B. Mickalitis, J. E. Aughenbaugh, and C. L. Morris
345 downloads
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Excursions
Henry David Thoreau
343 downloads
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The ivory king : A popular history of the elephant and its allies
Charles Frederick Holder
341 downloads
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Ecological Observations on the Woodrat, Neotoma floridana
Dennis G. Rainey and Henry S. Fitch
341 downloads
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The Healthy Life, Vol. V, Nos. 24-28
Various
340 downloads
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Mosaic of New Mexico's Scenery, Rocks, and History
337 downloads
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Bird-Lore, March-April 1916
Various
334 downloads
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The Chickamauga Dam and its environs
Robert Sparks Walker
333 downloads