Books in Category: Environmental Issues
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For the Birds
U.S. Fish and Wildlife Service
407 downloads
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Yosemite National Park, California
United States. National Park Service
407 downloads
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Practical Forestry in the Pacific Northwest
E. T. Allen
406 downloads
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Road Guide to Lassen Volcanic National Park
Paul E. Schulz
405 downloads
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Fishes of the Wakarusa River in Kansas
James E. Deacon and Artie L. Metcalf
404 downloads
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The Common Nature of Epidemics, and their relation to climate and civilization
Southwood Smith
404 downloads
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Den Hunting as a Means of Coyote Control
Harold Warren Dobyns and Stanley Paul Young
403 downloads
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Supplement to Animal Sanctuaries in Labrador
William Wood
402 downloads
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Histoire d'une Montagne (French)
Elisée Reclus
402 downloads
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La grande artère de la Chine: le Yangtseu (French)
Joseph Dautremer
402 downloads
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Glaciers and Glaciation in Glacier National Park
James L. Dyson
401 downloads
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Seventeen Species of Bats Recorded from Barro Colorado Island, Panama Canal Zone
E. Raymond Hall and William B. Jackson
401 downloads
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Birds Illustrated by Color Photography, Vol. 3, No. 4.
Various
400 downloads
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Cliff Dwellings of the Mesa Verde: A Study in Pictures
Don Watson
400 downloads
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Coyotes in Their Economic Relations
David E. Lantz
399 downloads
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Grand Teton [Wyoming] National Park
United States. Department of the Interior
399 downloads
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Why I Am a Vegetarian
J. Howard Moore
399 downloads
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Sanitation of Mofussil Bazaars
G. W. Disney
399 downloads
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The great beach
John Hay
399 downloads
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Description of a plan for the improvement of the Central Park
Frederick Law Olmsted and Calvert Vaux
398 downloads
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The Coming of Coal
Robert W. Bruère
398 downloads
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Quo vadimus? : Some glimpses of the future
E. E. Fournier d'Albe
397 downloads
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Geographic Variation in the Pocket Gopher, Thomomys bottae, in Colorado
Phillip M. Youngman
397 downloads
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El Campesino Puertorriqueño
(Spanish)
Francisco del Valle Atiles
396 downloads
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Lectures on Ventilation
Lewis W. Leeds
396 downloads