Books in Category: Environmental Issues
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Minnesota; Its Character and Climate
Ledyard Bill
470 downloads
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Our Nuclear Future: Facts, Dangers and Opportunities
Edward Teller and Albert L. Latter
470 downloads
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The Dawn of Canadian History : A Chronicle of Aboriginal Canada
Stephen Leacock
470 downloads
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The Grand Cañon of the Colorado
John Muir
468 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
467 downloads
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The evolution of climate
C. E. P. Brooks
467 downloads
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Natural History of the Salamander, Aneides hardii
Richard F. Johnston and G. A. Schad
466 downloads
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Cape Cod : its natural and cultural history : a guide to Cape Cod National Seashore, Massachusetts
United States. National Park Service. Division of Publications and Robert Finch
466 downloads
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The flow of time in the Connecticut valley : geological imprints
George W. Bain and Howard A. Meyerhoff
466 downloads
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The mighty deep : and what we know of it
Agnes Giberne
466 downloads
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Essays in Natural History and Agriculture
Thomas Garnett
465 downloads
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The Rocky Mountain Goat
Madison Grant
465 downloads
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Descripción Geografica, Histórica y Estadística de Bolivia, Tomo 1. (Spanish)
Alcide Dessalines d' Orbigny
463 downloads
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Fossil Forests of the Yellowstone National Park
Frank Hall Knowlton
463 downloads
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Comparative Ecology of Pinyon Mice and Deer Mice in Mesa Verde National Park, Colorado
Charles L. Douglas
463 downloads
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Life in the Shifting Dunes
Laurence B. White
460 downloads
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Botanical features of the Algerian Sahara
William Austin Cannon
458 downloads
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Use of tobacco among North American Indians
Ralph Linton
458 downloads
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Forest Trees and Forest Scenery
G. Frederick Schwarz
457 downloads
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Birds and All Nature, Vol. 4, No. 6, December 1898
Various
457 downloads
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Birds and All Nature, Vol. 7, No. 4, April 1900
Various
457 downloads
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Migration of Birds (1950)
Frederick Charles Lincoln
457 downloads
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Poisonous Dwellers of the Desert
Natt N. Dodge
457 downloads
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Mammals of Mount Rainier National Park
Merlin K. Potts and Russell K. Grater
456 downloads
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The Dwelling House
George Vivian Poore
454 downloads