Books in Category: Environmental Issues
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Barrier beaches of the Atlantic coast
Frederick J. H. Merrill
365 downloads
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Big Bend National Park: Land of Dramatic Contrasts and Scenic Grandeur
W. Ray Scott
364 downloads
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Bryce Canyon National Park, Utah (1952)
United States. National Park Service
363 downloads
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The Mammals of Warren Woods, Berrien County, Michigan
Lee R. Dice
362 downloads
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Psychological Aspects of the Problem of Atmospheric Smoke Pollution
J. E. Wallace Wallin
362 downloads
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Sewage and Garbage Disposal on the Farm
J. W. Rockey and Joseph Winslow Simons
361 downloads
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An inquiry into the propagation of contagious poisons, by the atmosphere : as also into the nature and effects of vitiated air, its forms and sources, and other causes of pestilence : with directions for avoiding the action of contagion, and observations on some means for promoting public health
Somerville Scott Alison
360 downloads
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Cactus Forest Drive, Saguaro National Monument
Anonymous
360 downloads
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O Sprawie Glodowej W Galicyi 1866 (Polish)
Karol Langie
358 downloads
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Water and power for San Francisco from Hetch-Hetchy Valley in Yosemite National Park
Martin Samuel Vilas
358 downloads
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A Guide to Natural Bridges National Monument, Utah
Anonymous
358 downloads
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The National Geographic Magazine, Vol. I., No. 4, October, 1889
Various
356 downloads
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Transactions of the American Society of Civil Engineers, Vol. LXX, Dec. 1910
A. Kempkey
356 downloads
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Cruise of the Revenue-Steamer Corwin in Alaska and the N.W. Arctic Ocean in 1881: Botanical Notes
John Muir
356 downloads
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The Chickamauga Dam and its environs
Robert Sparks Walker
354 downloads
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Reise in die Aequinoctial-Gegenden des neuen Continents. Band 4. (German)
Alexander von Humboldt
353 downloads
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An Essay on the Encroachments of the German Ocean Along the Norfolk Coast
William Hewitt
353 downloads
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Earthquakes
Kaye M. Shedlock and L. C. Pakiser
353 downloads
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Zion National Park, Utah (1951)
United States. National Park Service
353 downloads
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Landesverein Sächsischer Heimatschutz — Mitteilungen Band XIII, Heft 3-4 : Monatsschrift für Heimatschutz, Volkskunde und Denkmalpflege (German)
352 downloads
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The Salmon Fishery of Penobscot Bay and River in 1895-96
Hugh M. Smith
352 downloads
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The Tusayan ritual : A study on the influence of environment on aboriginal cults
Jesse Walter Fewkes
352 downloads
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Grand Teton [Wyoming] National Park
United States. Department of the Interior
351 downloads
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Trees of the Forest: Their Beauty and Use
Anonymous
351 downloads
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El Arroyo (Spanish)
Elisée Reclus
350 downloads