Books in Category: Environmental Issues
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Études sur la flore du Sénégal (French)
Joseph Vallot
325 downloads
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Memoria sobre o melhoramento da cultura da Beira e da navegação do Mondego (Portuguese)
António de Almeida
325 downloads
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Home Range and Movements of the Eastern Cottontail in Kansas
Donald W. Janes
322 downloads
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El Morro Trails: El Morro National Monument, New Mexico
Southwest Parks and Monuments Association
322 downloads
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Dell'antico stato del lago di Pusiano nell'alto Milanese (Italian)
Carlo Redaelli
322 downloads
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Landesverein Sächsischer Heimatschutz — Mitteilungen Band XII, Heft 10-12 : Monatsschrift für Heimatschutz und Denkmalpflege (German)
322 downloads
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The Mammals of Warren Woods, Berrien County, Michigan
Lee R. Dice
321 downloads
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Why I Am a Vegetarian
J. Howard Moore
320 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
320 downloads
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The Mentor: Game Birds of America, Vol. 1, Num. 34, Serial No. 34
Edward Howe Forbush
320 downloads
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Mammals of the Grand Mesa, Colorado
Sydney Anderson
319 downloads
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De koraal-eilanden: fragment uit het dagboek van een natuuronderzoeker
(Dutch)
Charles Darwin
318 downloads
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Den Hunting as a Means of Coyote Control
Harold Warren Dobyns and Stanley Paul Young
317 downloads
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Grand Teton National Park, Wyoming (1952)
United States. National Park Service
316 downloads
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The Sanitary Condition of the Poor in Relation to Disease, Poverty, and Crime
Benson Baker
315 downloads
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Report on the New York Botanical Garden
Olmsted Brothers
315 downloads
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Petrified Forest National Monument, Arizona
Dama Margaret Smith
312 downloads
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Water and power for San Francisco from Hetch-Hetchy Valley in Yosemite National Park
Martin Samuel Vilas
311 downloads
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Bryce Canyon National Park, Utah (1952)
United States. National Park Service
310 downloads
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Earthquakes
Kaye M. Shedlock and L. C. Pakiser
310 downloads
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Einfache Erzählung von dem schrecklichen Absturze des Schrofenberges und der dadurch erfolgten Verwüstung bei Brannenburg im August 1851
(German)
Sebastian Dachauer
310 downloads
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Water pollution—Wells
Irving A. Watson
310 downloads
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Sand dunes story
Donna P. Bessken
309 downloads
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Het Boschvolkje (Dutch)
William J. Long
308 downloads
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The farm and the woodlot
J. E. Barton
307 downloads