Books in Category: Environmental Issues
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Devils Tower National Monument, Wyoming (1949)
United States. National Park Service
411 downloads
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South America
Gardiner G. Hubbard
411 downloads
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Landesverein Sächsischer Heimatschutz — Mitteilungen Band XIV, Heft 3-4 : Monatsschrift für Heimatschutz, Volkskunde und Denkmalpflege (German)
410 downloads
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Rodent Control Aided by Emergency Conservation Work
Stanley Paul Young
409 downloads
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Remarks on the management, or rather, the mis-management of woods, plantations, and hedge-row timber
J. West
409 downloads
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In het Balkanbergland van Bulgarije
(Dutch)
L. de Launay
409 downloads
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Barrier beaches of the Atlantic coast
Frederick J. H. Merrill
408 downloads
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The Vailan or annular theory: A synopsis of Prof. I. N. Vail's argument in support of the claim that this Earth once possessed a Saturn-like system of rings
Stephen Bowers
407 downloads
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Preservation of forests as a measure of public safety
Lourenço Baeta Neves
406 downloads
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Studies of Birds Killed in Nocturnal Migration
Harrison Bruce Tordoff and Robert Morrow Mengel
404 downloads
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The Underworld of Oregon Caves National Monument
Roger J. Contor
403 downloads
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Mensch und Erde: Skizzen von den Wechselbeziehungen zwischen beiden (German)
Alfred Kirchhoff
402 downloads
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The Salmon Fishery of Penobscot Bay and River in 1895-96
Hugh M. Smith
401 downloads
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Sanitation of Mofussil Bazaars
G. W. Disney
398 downloads
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Water Power for the Farm and Country Home
David R. Cooper
397 downloads
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Petrified Forest National Monument (1953)
United States. National Park Service
395 downloads
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Montezuma Castle National Monument, Arizona (1959)
United States. National Park Service
393 downloads
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Official Report of the Exploration of the Queen Charlotte Islands for the Government of British Columbia
Newton H. Chittenden
393 downloads
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The City That Was
Stephen Smith
391 downloads
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Epidemics Examined and Explained: or, Living Germs Proved by Analogy to be a Source of Disease
John Grove
391 downloads
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Mammals of Mount McKinley National Park
Adolph Murie
390 downloads
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Els aucells més útils a la agricultura de Catalunya (Catalan)
Emili Tarré
387 downloads
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Wayside Sketches in Tasmania
S. H. Wintle
384 downloads
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»Meine Brüder im stillen Busch, in Luft und Wasser« (German)
Martin Braess
382 downloads
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Sketches in Duneland
Earl H. Reed
382 downloads