Books in Category: Environmental Issues
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Mesa Verde [Colorado] National Park
Anonymous
647 downloads
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Reise in die Aequinoctial-Gegenden des neuen Continents. Band 3. (German)
Alexander von Humboldt
646 downloads
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Some Common Birds Useful to the Farmer (1915 edition)
F. E. L. Beal
642 downloads
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The Fayûm and Lake Mœris
R. H. Brown
639 downloads
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The Dwelling House
George Vivian Poore
637 downloads
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The Heart of Nature; or, The Quest for Natural Beauty
Sir Francis Edward Younghusband
635 downloads
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Street Trees
Furman Lloyd Mulford
635 downloads
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The Migration of North American Birds (1935)
Frederick Charles Lincoln
632 downloads
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Crater Lake National Park, Oregon (1938)
United States. National Park Service
629 downloads
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Dresden und die Sächsische Schweiz (German)
Sophus Ruge
626 downloads
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London (Ancient and Modern) from the Sanitary and Medical Point of View
George Vivian Poore
626 downloads
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The Ocean and Its Wonders
R. M. Ballantyne
625 downloads
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Water and power for San Francisco from Hetch-Hetchy Valley in Yosemite National Park
Martin Samuel Vilas
622 downloads
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The Natural History of Selborne, Vol. 1
Gilbert White
622 downloads
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Comparative geography
Carl Ritter
615 downloads
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The Dawn of Canadian History : A Chronicle of Aboriginal Canada
Stephen Leacock
612 downloads
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Birds and All Nature, Vol. 4, No. 6, December 1898
Various
612 downloads
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The mighty deep : and what we know of it
Agnes Giberne
608 downloads
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Report on the Migration of Birds in the Spring and Autumn of 1880. [Second Report]
J. A. Harvie-Brown, John Cordeaux, and P. M. C. Kermode
602 downloads
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The Naturalist on the Thames
C. J. Cornish
601 downloads
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Wild Life in New Zealand. Part I. Mammalia.
G. M. Thomson
601 downloads
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Tableau du climat et du sol des États-Unis d'Amérique
(French)
C.-F. Volney
599 downloads
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Humpback Whales in Glacier Bay National Monument, Alaska
United States. Marine Mammal Commission
599 downloads
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Australasia
A. J. Sargent
598 downloads
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House Rats and Mice
David E. Lantz
597 downloads