Books in Category: Environmental Issues
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Water pollution—Wells
Irving A. Watson
431 downloads
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Psychological Aspects of the Problem of Atmospheric Smoke Pollution
J. E. Wallace Wallin
430 downloads
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The farm and the woodlot
J. E. Barton
430 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
430 downloads
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Conservation Archaeology of the Richland/Chambers Dam and Reservoir
L. Mark Raab and Randall W. Moir
429 downloads
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The Geologic Story of Glacier National Park
James L. Dyson
428 downloads
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Mesa Verde: Junior Ranger Booklet
United States. National Park Service
427 downloads
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Cumberland Island: Junior Ranger Program Activity Guide for Ages 5-7
United States. National Park Service
426 downloads
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Landesverein Sächsischer Heimatschutz — Mitteilungen Band X, Heft 4-6 : Monatsschrift für Heimatschutz und Denkmalpflege (German)
426 downloads
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Report of the Sanitary Committee of the Commissioners of Sewers of the City of London, together with a report of the Medical Officer of Health on the objections raised by the Butchers' Trade Society to the bye-laws proposed for the regulation of slaughter-houses
W. Sedgwick Saunders and City of London . Commissioners of Sewers. Sanitary Committee
426 downloads
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Information for the Guidance of Field Men and Cooperators of the Bureau of Biological Survey Engaged in the Control of Injurious Rodents and Predatory Animals
Stanley Paul Young and Paul G. Redington
425 downloads
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Crater Lake National Park, Oregon (1958)
United States. National Park Service
424 downloads
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Zion National Park, Utah (1951)
United States. National Park Service
423 downloads
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Grand Teton National Park, Wyoming (1952)
United States. National Park Service
422 downloads
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Coyotes in Their Economic Relations
David E. Lantz
422 downloads
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In het Balkanbergland van Bulgarije
(Dutch)
L. de Launay
421 downloads
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Wupatki Ruins Trail, Wupatki National Monument
Southwest Parks and Monuments Association
421 downloads
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Het Yellowstone-Park (Dutch)
Hugo de Vries
420 downloads
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The Great Round World and What Is Going On In It, Vol. 1, No. 49, October 14, 1897
Various
419 downloads
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Report on the Migration of Birds in the Spring and Autumn of 1882. Fourth Report
J. A. Harvie-Brown, John Cordeaux, Richard Manliffe Barrington, and Alexander Goodman More
418 downloads
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Remarks on the management, or rather, the mis-management of woods, plantations, and hedge-row timber
J. West
417 downloads
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The Mentor: Game Animals of America, Vol. 4, Num. 13, Serial No. 113, August 15, 1916
William T. Hornaday
416 downloads
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Bamboo, Considered as a Paper-making Material
Thomas Routledge
416 downloads
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The Geology of Calvin Coolidge State Forest
Harry W. Dodge
415 downloads
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The Mammals of Washtenaw County, Michigan
Norman Asa Wood
414 downloads