Books in Category: Environmental Issues
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In Wildest Africa, Vol. 1
C. G. Schillings
609 downloads
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Guida delle Prealpi Giulie (Italian)
Olinto Marinelli
606 downloads
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Bird Guide: Land Birds East of the Rockies, from Parrots to Bluebirds
Chester A. Reed
603 downloads
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The Story of the Hills: A Book About Mountains for General Readers.
H. N. Hutchinson
602 downloads
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The filtration of public water-supplies
Allen Hazen
601 downloads
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Weather proverbs
H. H. C. Dunwoody
600 downloads
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Deserts: Geology and Resources
A. S. Walker
600 downloads
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Golf Architecture: Economy in Course Construction and Green-Keeping
A. Mackenzie
600 downloads
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Travels into North America, Volume 1 (of 3)
Pehr Kalm
600 downloads
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Bird-Lore, March-April 1916
Various
599 downloads
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The Storm
Daniel Defoe
598 downloads
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Volcanic Islands
Charles Darwin
595 downloads
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The Naturalist on the Thames
C. J. Cornish
595 downloads
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Appletons' Popular Science Monthly, September 1899
Various
592 downloads
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War Gardens: A Pocket Guide for Home Vegetable Growers
Montague Free
590 downloads
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The Vivisectors' Directory
588 downloads
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Coal, and What We Get from It
Raphael Meldola
586 downloads
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The dawn of astronomy
Sir Norman Lockyer
581 downloads
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Ethnology of the Ungava District, Hudson Bay Territory
Lucien M. Turner
580 downloads
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The Ocean and Its Wonders
R. M. Ballantyne
577 downloads
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Creation of the Teton Landscape: The Geologic Story of Grand Teton National Park
John C. Reed and J. D. Love
576 downloads
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Migration of Birds (1979)
Frederick Charles Lincoln and Steven R. Peterson
576 downloads
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In Beaver World
Enos A. Mills
575 downloads
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Deadly Adulteration and Slow Poisoning Unmasked
Anonymous
574 downloads
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Checking the Waste: A Study in Conservation
Mary Huston Gregory
573 downloads