Books in Category: Environmental Issues (sorted by popularity)
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Illustrated Catalogue of a Portion of the Collections Made During the Field Season of 1881 William Henry Holmes 355 downloads
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Cornwall S. Baring-Gould 351 downloads
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North America Israel C. Russell 350 downloads
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Northern Nut Growers Association, Report Of The Proceedings At The Tenth Annual Meeting. 350 downloads
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Desert and water gardens of the Red Sea : Being an account of the natives and the shore formations of the coast Cyril Crossland 349 downloads
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Michigan Trees: A Handbook of the Native and Most Important Introduced Species Charles Herbert Otis 342 downloads
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Berkshire Horace Woollaston Monckton 342 downloads
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Mammals of the Grand Mesa, Colorado Sydney Anderson 341 downloads
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The National Geographic Magazine, Vol. III. (Complete), 1891 Various 341 downloads
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The Ocean and Its Wonders R. M. Ballantyne 340 downloads
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Animal Sanctuaries in Labrador William Wood 340 downloads
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The Geologic Story of Arches National Park Stanley William Lohman 338 downloads
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Aspects of nature, in different lands and different climates (Vol. 2 of 2) Alexander von Humboldt 338 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 337 downloads
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Birds and All Nature, Vol. 4, No. 3, September 1898 Various 337 downloads
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Science in Arcady Grant Allen 336 downloads
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The Naturalist on the Thames C. J. Cornish 335 downloads
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Histoire d'un ruisseau (French) Elisée Reclus 335 downloads
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The Story of the Hills: A Book About Mountains for General Readers. H. N. Hutchinson 335 downloads
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Mammals of the San Gabriel Mountains of California Terry A. Vaughan 335 downloads
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The Fight for Conservation Gifford Pinchot 335 downloads
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The Geographical Distribution of Animals, Volume 1 Alfred Russel Wallace 332 downloads
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Rural Hygiene Henry N. Ogden 332 downloads
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The Forest Habitat of the University of Kansas Natural History Reservation Henry S. Fitch and Ronald L. McGregor 331 downloads
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Life History and Ecology of the Five-Lined Skink, Eumeces fasciatus Henry S. Fitch 330 downloads