Books in Category: Environmental Issues
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Flowers of the Southwest Deserts
Natt N. Dodge
594 downloads
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Golf Architecture: Economy in Course Construction and Green-Keeping
A. Mackenzie
592 downloads
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The Flower-Fields of Alpine Switzerland: An Appreciation and a Plea
G. Flemwell
590 downloads
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Cave Regions of the Ozarks and Black Hills
Luella Agnes Owen
586 downloads
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Ideen zu einer Physiognomik der Gewächse (German)
Alexander von Humboldt
585 downloads
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Many-Storied Mountains: The Life of Glacier National Park
Greg Beaumont
584 downloads
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Volcanic Islands
Charles Darwin
580 downloads
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Landscape in History, and Other Essays
Archibald Geikie
580 downloads
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The sacred theory of the Earth, Volume 1 (of 2) : Containing an account of the original of the Earth, and of all the general changes which it hath already undergone, or is to undergo, till the consummation of all things.
Thomas Burnet
579 downloads
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The Geographical Distribution of Animals, Volume 1
Alfred Russel Wallace
578 downloads
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Dresden und die Sächsische Schweiz (German)
Sophus Ruge
577 downloads
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Weather proverbs
H. H. C. Dunwoody
575 downloads
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Migration of Birds (1979)
Frederick Charles Lincoln and Steven R. Peterson
571 downloads
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Grand Teton: A Guide to Grand Teton National Park, Wyoming
United States. National Park Service
571 downloads
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Bird Day; How to prepare for it
Charles Almanzo Babcock
567 downloads
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Birds and All Nature, Vol. 4, No. 3, September 1898
Various
565 downloads
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Report on the lands of the arid region of the United States, with a more detailed account of the lands of Utah
John Wesley Powell, Grove Karl Gilbert, Clarence E. Dutton, A. H. Thompson, and Willis Drummond
565 downloads
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Millions from Waste
Frederick Arthur Ambrose Talbot
564 downloads
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The Geologic Story of Colorado National Monument
Stanley William Lohman
564 downloads
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The Natural History of Selborne, Vol. 1
Gilbert White
564 downloads
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A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, México
William Edward Duellman
563 downloads
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Ohio Arbor Day 1913: Arbor and Bird Day Manual
563 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
561 downloads
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Baraboo, Dells, and Devil's Lake Region
Harry Ellsworth Cole
561 downloads
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The Training of a Forester
Gifford Pinchot
559 downloads