Books in Category: Environmental Issues
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The binding of the Nile and the new Soudan
Sidney Cornwallis Peel
443 downloads
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The Food Question: Health and Economy
Various
442 downloads
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Tableau du climat et du sol des États-Unis d'Amérique
(French)
C.-F. Volney
442 downloads
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House Rats and Mice
David E. Lantz
442 downloads
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Appletons' Popular Science Monthly, November 1898
Various
440 downloads
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The great beach
John Hay
439 downloads
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A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, México
William Edward Duellman
434 downloads
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Report on the Migration of Birds in the Spring and Autumn of 1887. Ninth Report
J. A. Harvie-Brown, John Cordeaux, Richard Manliffe Barrington, Alexander Goodman More, and William Eagle Clarke
433 downloads
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Sewage and sewerage of farm homes [1922]
George M. Warren
433 downloads
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Comparative Ecology of Pinyon Mice and Deer Mice in Mesa Verde National Park, Colorado
Charles L. Douglas
432 downloads
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Humpback Whales in Glacier Bay National Monument, Alaska
United States. Marine Mammal Commission
431 downloads
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Olympic National Park, Washington
Gunnar O. Fagerlund
431 downloads
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Beautiful Birds
Edmund Selous
431 downloads
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Weather and Folk Lore of Peterborough and District
Charles Dack
429 downloads
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Fossil Forests of the Yellowstone National Park
Frank Hall Knowlton
429 downloads
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Scientific Essays and Lectures
Charles Kingsley
429 downloads
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Sanitation of Mofussil Bazaars
G. W. Disney
429 downloads
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Mesa Verde [Colorado] National Park
Anonymous
429 downloads
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Arbor Day Leaves
Nathaniel Hillyer Egleston
429 downloads
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Volcanoes
Robert I. Tilling
427 downloads
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Practical Forestry in the Pacific Northwest
E. T. Allen
426 downloads
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Birds and All Nature, Vol. 7, No. 4, April 1900
Various
425 downloads
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Greasy luck : A whaling sketch book
Gordon Grant
424 downloads
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The Atom and the Ocean
E. W. Seabrook Hull
424 downloads
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Travels into North America, Volume 3 (of 3)
Pehr Kalm
424 downloads