Books in Category: Environmental Issues
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The Coming Ice Age
C. A. M. Taber
557 downloads
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Geographic Variation in the Pocket Gopher, Thomomys bottae, in Colorado
Phillip M. Youngman
556 downloads
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Additional Records and Extensions of Known Ranges of Mammals from Utah
Stephen David Durrant, M. Raymond Lee, and Richard M. Hansen
556 downloads
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The Game Fish, of the Northern States and British Provinces
Robert Barnwell Roosevelt
555 downloads
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Tonto Cliff Dwellings Guide: Tonto National Monument, Arizona
United States. National Park Service and Southwest Parks and Monuments Association
555 downloads
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The Flea
Harold Russell
555 downloads
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Shenandoah National Park, Virginia
United States. National Park Service
554 downloads
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Birds Illustrated by Color Photography, Vol. 3, No. 4.
Various
553 downloads
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Killing for Sport: Essays by Various Writers
548 downloads
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Montezuma National Forest, Colorado (1939)
United States. Forest Service. Rocky Mountain Region
547 downloads
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Het Boschvolkje (Dutch)
William J. Long
547 downloads
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Whale Primer, with Special Attention to the California Gray Whale
Theodore J. Walker
547 downloads
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Mammoth Hot Springs Area: Yellowstone National Park
Anonymous
546 downloads
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Agatized Rainbows: A Story of the Petrified Forest
Harold J. Brodrick
546 downloads
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Collectanea de Diversis Rebus: Addresses and Papers
Sir Peter Eade
545 downloads
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Pere Marquette State Park
Illinois. Department of Conservation
544 downloads
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Why I Am a Vegetarian
J. Howard Moore
544 downloads
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The Farm That Won't Wear Out
Cyril G. Hopkins
544 downloads
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Animal Sanctuaries in Labrador
William Wood
544 downloads
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The Rocky Mountain Goat
Madison Grant
542 downloads
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The Mentor: The Story of Coal, vol. 6, Num. 6, Serial No. 154, May 1, 1918
Charles Fitzhugh Talman
541 downloads
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The Deluge in the Light of Modern Science: A Discourse
William Denton
539 downloads
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The Story of a Piece of Coal: What It Is, Whence It Comes, and Whither It Goes
Edward A. Martin
539 downloads
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Noteworthy Mammals from Sinaloa, Mexico
Ticul Alvarez, J. Knox Jones, and M. Raymond Lee
537 downloads
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Transactions of the American Society of Civil Engineers, Vol. LXX, Dec. 1910
A. Kempkey
533 downloads