Books in Category: Environmental Issues
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The Geographical Distribution of Animals, Volume 1
Alfred Russel Wallace
608 downloads
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The Flower-Fields of Alpine Switzerland: An Appreciation and a Plea
G. Flemwell
607 downloads
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A Report upon the Mollusk Fisheries of Massachusetts
Massachusetts. Commissioners on Fisheries and Game and David Lawrence Belding
606 downloads
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Landscape in History, and Other Essays
Archibald Geikie
604 downloads
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Dresden und die Sächsische Schweiz (German)
Sophus Ruge
603 downloads
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Ideen zu einer Physiognomik der Gewächse (German)
Alexander von Humboldt
600 downloads
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Many-Storied Mountains: The Life of Glacier National Park
Greg Beaumont
596 downloads
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Volcanic Islands
Charles Darwin
596 downloads
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Weather proverbs
H. H. C. Dunwoody
596 downloads
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Migration of Birds (1979)
Frederick Charles Lincoln and Steven R. Peterson
596 downloads
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Cave Regions of the Ozarks and Black Hills
Luella Agnes Owen
594 downloads
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Golf Architecture: Economy in Course Construction and Green-Keeping
A. Mackenzie
589 downloads
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Grand Teton: A Guide to Grand Teton National Park, Wyoming
United States. National Park Service
587 downloads
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Birds and All Nature, Vol. 4, No. 3, September 1898
Various
584 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
583 downloads
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Baraboo, Dells, and Devil's Lake Region
Harry Ellsworth Cole
583 downloads
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The Geologic Story of Colorado National Monument
Stanley William Lohman
582 downloads
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Bird Day; How to prepare for it
Charles Almanzo Babcock
578 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
577 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
574 downloads
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A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, México
William Edward Duellman
574 downloads
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Millions from Waste
Frederick Arthur Ambrose Talbot
572 downloads
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Ohio Arbor Day 1913: Arbor and Bird Day Manual
571 downloads
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Deadly Adulteration and Slow Poisoning Unmasked
Anonymous
568 downloads
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Zion National Park, Utah (1951)
United States. National Park Service
565 downloads