Books in Category: Environmental Issues
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Sanctuary: A Bird Masque
Percy MacKaye
581 downloads
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The BYU Solar Cooker/Cooler
Steven E. Jones
581 downloads
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Guatemala, the country of the future
Charles M. Pepper
581 downloads
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Mesa Verde [Colorado] National Park
Anonymous
581 downloads
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Itinerario de Buenos Aires a Cordoba (Spanish)
José Sourryère de Souillac
580 downloads
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A History of Epidemic Pestilences
Edward Bascome
579 downloads
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Ecology of the Opossum on a Natural Area in Northeastern Kansas
Henry S. Fitch and Lewis L. Sandidge
579 downloads
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Landesverein Sächsischer Heimatschutz — Mitteilungen Band XII, Heft 1-3 : Monatsschrift für Heimatschutz, Volkskunde und Denkmalpflege (German)
579 downloads
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The Dwelling House
George Vivian Poore
577 downloads
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By Canadian Streams
Lawrence J. Burpee
576 downloads
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Landesverein Sächsischer Heimatschutz — Mitteilungen Band XII, Heft 10-12 : Monatsschrift für Heimatschutz und Denkmalpflege (German)
575 downloads
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Reise in die Aequinoctial-Gegenden des neuen Continents. Band 3. (German)
Alexander von Humboldt
575 downloads
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Woodland Gleanings: Being an Account of British Forest-Trees
Robert Tyas
574 downloads
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El Morro Trails: El Morro National Monument, New Mexico
Southwest Parks and Monuments Association
574 downloads
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Beautiful Birds
Edmund Selous
572 downloads
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Description of a plan for the improvement of the Central Park
Frederick Law Olmsted and Calvert Vaux
571 downloads
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A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, México
William Edward Duellman
570 downloads
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The Salton Sea: An account of Harriman's fight with the Colorado River
George Kennan
570 downloads
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The mighty deep : and what we know of it
Agnes Giberne
569 downloads
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Home Range and Movements of the Eastern Cottontail in Kansas
Donald W. Janes
569 downloads
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Quo vadimus? : Some glimpses of the future
E. E. Fournier d'Albe
569 downloads
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A Report upon the Mollusk Fisheries of Massachusetts
Massachusetts. Commissioners on Fisheries and Game and David Lawrence Belding
568 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
568 downloads
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The Chickamauga Dam and its environs
Robert Sparks Walker
568 downloads
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Mammals of Mesa Verde National Park, Colorado
Sydney Anderson
568 downloads