Books in Category: Environmental Issues
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Geographic Variation in the Pocket Gopher, Thomomys bottae, in Colorado
Phillip M. Youngman
332 downloads
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Our Common Land (and Other Short Essays)
Octavia Hill
332 downloads
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The Mentor: Game Birds of America, Vol. 1, Num. 34, Serial No. 34
Edward Howe Forbush
326 downloads
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The Washington Peace Carillon
James Marion Shull
326 downloads
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De koraal-eilanden: fragment uit het dagboek van een natuuronderzoeker
(Dutch)
Charles Darwin
324 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
323 downloads
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Montezuma Castle National Monument, Arizona (1959)
United States. National Park Service
323 downloads
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Freak trees of the State of New York
Gurth Adelbert Whipple
323 downloads
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Memoria sobre o melhoramento da cultura da Beira e da navegação do Mondego (Portuguese)
António de Almeida
323 downloads
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Dominica (Dutch)
H. van Kol
322 downloads
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The Mentor: The Story of Coal, vol. 6, Num. 6, Serial No. 154, May 1, 1918
Charles Fitzhugh Talman
320 downloads
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The Mammals of Washtenaw County, Michigan
Norman Asa Wood
320 downloads
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Epidemics Examined and Explained: or, Living Germs Proved by Analogy to be a Source of Disease
John Grove
319 downloads
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Earthquakes
Kaye M. Shedlock and L. C. Pakiser
319 downloads
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Why I Am a Vegetarian
J. Howard Moore
319 downloads
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Notes on the Mammals of Gogebic and Ontonagon Counties, Michigan, 1920
Lee R. Dice and Harley Bakwel Sherman
318 downloads
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Big Bend National Park: Land of Dramatic Contrasts and Scenic Grandeur
W. Ray Scott
318 downloads
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Birds Illustrated by Color Photography, Vol. 3, No. 4.
Various
314 downloads
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Eiszeit und Klimawechsel (German)
Wilhelm Bölsche
314 downloads
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Water pollution—Wells
Irving A. Watson
313 downloads
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The Glamour of the Arctic
Arthur Conan Doyle
313 downloads
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Cactus Forest Drive, Saguaro National Monument
Anonymous
312 downloads
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Barrier beaches of the Atlantic coast
Frederick J. H. Merrill
312 downloads
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Report of the committee appointed to investigate the causes and extent of the late extraordinary sickness and mortality in the town of Mobile
Mobile . Committee on Causes and Extent of the Late Extraordinary Sickness and Mortality in the Town
311 downloads
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Luonto ja ihminen: Poimintoja eri teoksista (Finnish)
John Ruskin
311 downloads