Books in Category: Environmental Issues
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The Flea
Harold Russell
535 downloads
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The Geologic Story of Yellowstone National Park
William R. Keefer
534 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
533 downloads
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The School Book of Forestry
Charles Lathrop Pack
532 downloads
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The History of Badlands National Monument and the White River (Big) Badlands of South Dakota
Ray H. Mattison and Robert A. Grom
530 downloads
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An Experimental Translocation of the Eastern Timber Wolf
Thomas F. Weise, William Laughlin Robinson, Richard A. Hook, and L. David Mech
528 downloads
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Our national forests : a short popular account of the work of the United States Forest service on the national forests
Richard H. D. Boerker
528 downloads
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Spadacrene Anglica: The English Spa Fountain
Edmund Deane
527 downloads
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Science in Arcady
Grant Allen
527 downloads
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Modern Geography
Marion I. Newbigin
526 downloads
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Euthenics, the science of controllable environment
Ellen H. Richards
525 downloads
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Deutsche Nordseeküste: Friesische Inseln und Helgoland. (German)
Hippolyt Julius Haas
525 downloads
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A Guide to the Mount's Bay and the Land's End
John Ayrton Paris
525 downloads
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Illustrated Catalogue of a Portion of the Collections Made During the Field Season of 1881
William Henry Holmes
524 downloads
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The Geologic Story of Arches National Park
Stanley William Lohman
523 downloads
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Wild Flowers of Zion and Bryce Canyon National Parks and Cedar Breaks National Monument
Carl E. Jepson and Leland F. Allen
520 downloads
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Saguaro National Monument, Arizona
Napier Shelton and Natt N. Dodge
520 downloads
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The House Fly and How to Suppress It
L. O. Howard and F. C. Bishopp
517 downloads
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Villages of the Algonquian, Siouan, and Caddoan Tribes West of the Mississippi
David I. Bushnell
516 downloads
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Cornwall
S. Baring-Gould
513 downloads
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The Diatomaceæ of Philadelphia and Vicinity
Charles S. Boyer
512 downloads
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Tea Leaves
Francis H. Leggett & Co.
510 downloads
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Some Common Birds Useful to the Farmer (1915 edition)
F. E. L. Beal
510 downloads
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Australasia
A. J. Sargent
509 downloads
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The Farm That Won't Wear Out
Cyril G. Hopkins
507 downloads