Books in Category: Environmental Issues
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Everglades Wildguide
Jean Craighead George
601 downloads
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Human Origins
S. Laing
601 downloads
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A Guide to the Mount's Bay and the Land's End
John Ayrton Paris
599 downloads
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The giant sequoia : An account of the history and characteristics of the big trees of California
Rodney Sydes Ellsworth
598 downloads
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Sewage and Garbage Disposal on the Farm
J. W. Rockey and Joseph Winslow Simons
597 downloads
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Rural Hygiene
Henry N. Ogden
596 downloads
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California: The Land of the Sun
Mary Austin
593 downloads
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Michigan Trees: A Handbook of the Native and Most Important Introduced Species
Charles Herbert Otis
591 downloads
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Great Smoky Mountains National Park, North Carolina and Tennessee
United States. National Park Service
591 downloads
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The Black Moose in Pennsylvania
Henry W. Shoemaker
589 downloads
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The Naturalist on the Thames
C. J. Cornish
589 downloads
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Scientific American Supplement, No. 520, December 19, 1885
Various
589 downloads
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Whale hunting with gun and camera
Roy Chapman Andrews
588 downloads
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Animal life of the British Isles : a pocket guide to the mammals, reptiles and batrachians of wayside and woodland
Edward Step
588 downloads
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The Geologic Story of Arches National Park
Stanley William Lohman
586 downloads
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The Flea
Harold Russell
582 downloads
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Nature Mysticism
John Edward Mercer
581 downloads
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The Geologic Story of Yellowstone National Park
William R. Keefer
580 downloads
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Comparative geography
Carl Ritter
579 downloads
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The Geologic Story of Colorado National Monument
Stanley William Lohman
579 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
578 downloads
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Aspects of nature, in different lands and different climates (Vol. 2 of 2)
Alexander von Humboldt
576 downloads
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Municipal housecleaning : the methods and experiences of American cities in collecting and disposing of their municipal wastes—ashes, rubbish, garbage, manure, sewage, and street refuse
William Parr Capes and Jeanne Daniels Carpenter
572 downloads
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Mammals of the San Gabriel Mountains of California
Terry A. Vaughan
569 downloads
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The School Book of Forestry
Charles Lathrop Pack
568 downloads