Books in Category: Environmental Issues
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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
405 downloads
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Island Trail at Walnut Canyon
Southwestern Monuments Association
404 downloads
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Ecology of the Opossum on a Natural Area in Northeastern Kansas
Henry S. Fitch and Lewis L. Sandidge
403 downloads
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A Full Description of the Great Tornado in Chester County, Pa.
Richard Darlington
402 downloads
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Den Hunting as a Means of Coyote Control
Harold Warren Dobyns and Stanley Paul Young
402 downloads
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La grande artère de la Chine: le Yangtseu (French)
Joseph Dautremer
402 downloads
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The Salton Sea: An account of Harriman's fight with the Colorado River
George Kennan
402 downloads
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Humpback Whales in Glacier Bay National Monument, Alaska
United States. Marine Mammal Commission
401 downloads
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The Mammals of Washtenaw County, Michigan
Norman Asa Wood
401 downloads
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Cliff Dwellings of the Mesa Verde: A Study in Pictures
Don Watson
399 downloads
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Alaska (Icelandic)
Jón Ólafsson
398 downloads
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Noteworthy Mammals from Sinaloa, Mexico
Ticul Alvarez, J. Knox Jones, and M. Raymond Lee
397 downloads
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For the Birds
U.S. Fish and Wildlife Service
397 downloads
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El Morro Trails: El Morro National Monument, New Mexico
Southwest Parks and Monuments Association
397 downloads
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Tirol (German)
Max Haushofer
397 downloads
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Buxton and its Medicinal Waters
Robert Ottiwell Gifford-Bennet
395 downloads
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The Great Round World and What Is Going On In It, Vol. 1, No. 49, October 14, 1897
Various
395 downloads
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Seventeen Species of Bats Recorded from Barro Colorado Island, Panama Canal Zone
E. Raymond Hall and William B. Jackson
394 downloads
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The Geologic Story of Colorado National Monument
Stanley William Lohman
393 downloads
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Burton Island State Park: Guide to the Interpretive Nature Trail and Hiking Trail
Stephen Antil
393 downloads
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Why I Am a Vegetarian
J. Howard Moore
391 downloads
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Supplement to Animal Sanctuaries in Labrador
William Wood
391 downloads
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Atlas de poche des mammifères de la France, de la Suisse romane et de la Belgique
(French)
René Martin
390 downloads
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Wind and Weather
Alexander McAdie
390 downloads
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The Common Nature of Epidemics, and their relation to climate and civilization
Southwood Smith
390 downloads