Books in Category: Environmental Issues
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Ecological Studies of the Timber Wolf in Northeastern Minnesota
L. David Mech, Louis Daniel Frenzel, Robert R. Ream, John W. Winship, and P. D. Karns
803 downloads
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Saguaro National Monument, Arizona
Napier Shelton and Natt N. Dodge
802 downloads
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Flowers of the Southwest Deserts
Natt N. Dodge
792 downloads
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The Geologic Story of Yellowstone National Park
William R. Keefer
787 downloads
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Wealth of the World's Waste Places and Oceania
Jewett C. Gilson
785 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
782 downloads
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Fishing Grounds of the Gulf of Maine
Walter H. Rich
780 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
779 downloads
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Aspects of nature, in different lands and different climates (Vol. 1 of 2)
Alexander von Humboldt
778 downloads
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Northern Nut Growers Association, Report Of The Proceedings At The Tenth Annual Meeting.
775 downloads
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A year at the shore
Philip Henry Gosse
773 downloads
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Garden and Forest Weekly, Volume 1 No. 1, February 29, 1888
Various
772 downloads
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The School Book of Forestry
Charles Lathrop Pack
771 downloads
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Poisonous Dwellers of the Desert
Natt N. Dodge
770 downloads
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Western Himalaya and Tibet
Thomas Thomson
769 downloads
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Everglades Wildguide
Jean Craighead George
767 downloads
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The useful trees of northern Nigeria
Hugh Vandervaes Lely
767 downloads
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The filtration of public water-supplies
Allen Hazen
765 downloads
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Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 3
Alexander von Humboldt and Aimé Bonpland
765 downloads
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Villages of the Algonquian, Siouan, and Caddoan Tribes West of the Mississippi
David I. Bushnell
764 downloads
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In Wildest Africa, Vol. 1
C. G. Schillings
756 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
753 downloads
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California: The Land of the Sun
Mary Austin
753 downloads
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Mosaic of New Mexico's Scenery, Rocks, and History
750 downloads
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One Hundred Years in Yosemite: The Story of a Great Park and Its Friends
Carl Parcher Russell
747 downloads