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Page 6860, results 171476 - 171500

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Distribution and ecology of whistling swans in the Chesapeake Bay region
R. E. Stewart, J.H. Manning
1958, The Auk (75) 203-212
The Whistling Swan, Olor columbianus, is of particular significance in the Chesapeake Bay region, since major wintering and transient populations occur here regularly, constituting in some years more than half the total population of the species. Some of these concentrations are so large that they attract many bird-watchers, who...
Rodent repellents
J.B. DeWitt, J.C. Besser
1958, Report, Latest report on U. S. Fish and Wildlife Service research with rodent repellents
Why rodent repellents are needed, how they are tested, and what ones are showing promise. Some of the best ones now known are too toxic, too costly, or both....
Ground-water resources in the tri-state region adjacent to the Lower Delaware River
Henry C. Barksdale, David W. Greenman, Solomon Max Lang, George Stockbridge Hilton, Donald E. Outlaw
1958, New Jersey Division of Water Policy and Supply Special Report 13
The purpose of this report is to appraise and evaluate the groundwater resources of a tri-state region adjacent to the lower Delaware River that is centered around Philadelphia, Pa., and Camden, N. J., and includes Wilmington, Del., and Trenton, N.J. Specifically, the region includes New Castle County, Del.; Burlington, Camden,...
Birds and Aircraft on Midway Islands, 1956-57 Investigations
K.W. Kenyon, D.W. Rice, C.S. Robbins, J.W. Aldrich
1958, Special Scientific Report - Wildlife 38
The purpose of this study is to determine the extent to which certain species of birds contribute to the hazard to aircraft at Midway; to learn more about the population dynamics and habits of these species to determine what type of control measures might be possible without endangering the species;...
Records of springs in the Snake River valley, Jerome and Gooding Counties, Idaho, 1899-1947
Raymond L. Nace, Arthur Van’t Hul, I.S. McQueen
1958, Water Supply Paper 1463
Many springs and seeps discharge water from the north wall of the valley of the Snake River between Milner and Bliss, Idaho. These are fed by a large ground-water body lying east and north of the river, beneath the Snake River Plain. Much ground water is pumped on the plain, many irrigation wells...