Books in Category: Environmental Issues
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Travels into North America, Volume 3 (of 3)
Pehr Kalm
743 downloads
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The Taleef Shereef; Or, Indian Materia Medica
743 downloads
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The Training of a Forester
Gifford Pinchot
739 downloads
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Histoire d'un ruisseau (French)
Elisée Reclus
739 downloads
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The Earth as Modified by Human Action
George P. Marsh
738 downloads
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Mammals of the Southwest Mountains and Mesas
George Olin
738 downloads
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Worldwide Effects of Nuclear War: Some Perspectives
United States. Arms Control and Disarmament Agency
737 downloads
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Appletons' Popular Science Monthly, November 1898
Various
736 downloads
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Bird Day; How to prepare for it
Charles Almanzo Babcock
733 downloads
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Volcanic Islands
Charles Darwin
732 downloads
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Acid Rain and Our Nation's Capital: A Guide to Effects on Buildings and Monuments
E. S. McGee
727 downloads
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Climatic Changes: Their Nature and Causes
Ellsworth Huntington and Stephen Sargent Visher
727 downloads
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Migration of Birds (1979)
Frederick Charles Lincoln and Steven R. Peterson
725 downloads
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Tableau du climat et du sol des États-Unis d'Amérique
(French)
C.-F. Volney
724 downloads
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The Natural History of Wiltshire
John Aubrey
724 downloads
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The Naturalist in La Plata
W. H. Hudson
720 downloads
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The Geologic Story of Colorado National Monument
Stanley William Lohman
717 downloads
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Use of tobacco among North American Indians
Ralph Linton
716 downloads
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Ragnarok : the Age of Fire and Gravel
Ignatius Donnelly
716 downloads
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Proceedings of the second National Conservation Congress at Saint Paul, September 5-8, 1910
United States. National Conservation Congress
715 downloads
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Ohio Arbor Day 1913: Arbor and Bird Day Manual
712 downloads
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A Report on Washington Territory
William Henry Ruffner
711 downloads
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Report on the lands of the arid region of the United States, with a more detailed account of the lands of Utah
John Wesley Powell, Grove Karl Gilbert, Clarence E. Dutton, A. H. Thompson, and Willis Drummond
711 downloads
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Many-Storied Mountains: The Life of Glacier National Park
Greg Beaumont
710 downloads
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The Nation's River: A report on the Potomac
United States. Department of the Interior
707 downloads