Books in Category: Environmental Issues
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Bird Day; How to prepare for it
Charles Almanzo Babcock
775 downloads
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Mother Earth, Vol. 1 No. 1, March 1906
Various
774 downloads
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Wild Animals of Yellowstone National Park
Harold J. Brodrick
773 downloads
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A Report upon the Mollusk Fisheries of Massachusetts
Massachusetts. Commissioners on Fisheries and Game and David Lawrence Belding
772 downloads
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Mammals of the Southwest Mountains and Mesas
George Olin
772 downloads
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Wild Flowers of Zion and Bryce Canyon National Parks and Cedar Breaks National Monument
Carl E. Jepson and Leland F. Allen
770 downloads
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Nature Mysticism
John Edward Mercer
769 downloads
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Fishing Grounds of the Gulf of Maine
Walter H. Rich
760 downloads
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Scientific American Supplement, No. 520, December 19, 1885
Various
758 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
753 downloads
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Cave Regions of the Ozarks and Black Hills
Luella Agnes Owen
749 downloads
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Ragnarok : the Age of Fire and Gravel
Ignatius Donnelly
747 downloads
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Ecological Studies of the Timber Wolf in Northeastern Minnesota
L. David Mech, Louis Daniel Frenzel, Robert R. Ream, John W. Winship, and P. D. Karns
745 downloads
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Landscape in History, and Other Essays
Archibald Geikie
743 downloads
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The Ohio naturalist, Vol. 1, No. 3, January, 1901
Ohio State University. Biological Club
731 downloads
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Northern Nut Growers Association, Report Of The Proceedings At The Tenth Annual Meeting.
730 downloads
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Deutsche Nordseeküste: Friesische Inseln und Helgoland. (German)
Hippolyt Julius Haas
728 downloads
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A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, México
William Edward Duellman
722 downloads
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Migration of Birds (1979)
Frederick Charles Lincoln and Steven R. Peterson
720 downloads
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Zion National Park, Utah (1951)
United States. National Park Service
719 downloads
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California: The Land of the Sun
Mary Austin
718 downloads
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Oudewater en omtrek, Geologisch, Mythologisch en Geschiedkundig Geschetst (Dutch)
Willem Cornelis van Zijll
717 downloads
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Ohio Arbor Day 1913: Arbor and Bird Day Manual
716 downloads
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Auroræ: Their Characters and Spectra
J. Rand Capron
716 downloads
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The flow of time in the Connecticut valley : geological imprints
George W. Bain and Howard A. Meyerhoff
715 downloads