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Page 6038, results 150926 - 150950

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Determination of 2-isovaleryl-1,3-indandione with 2,4-dinitrophenylhydrazine. Rodenticide Analysis.
C. M. Menzie, V. A. Adomaitis, W. L. Reichel
1962, Analytical Chemistry (34) 516-518
At present, three 2-alkyl-1,3-indandiones (PMP, pival, and diphacinon) are widely used as rodenticides. Because analytical procedures now in use are empirical and do not furnish adequate or positive means for distinguishing among these closely related compounds, studies were undertaken to develop a sensitive and specific method for the determination...
Evaluating causes of population change in North American insectivorous songbirds
C.S. Robbins
1962, Audubon Field Notes (16) 142
Although the North American Breeding Bird Survey (BBS) is a principal source of information regarding populations of most North American bird species, many features of the survey complicate analysis of population change. Correlation studies based on BBS data cannot be used to unambiguously define cause and effect relationships....
Future demands for wildlife and fishing
J.L. Buckley
1962, Book chapter, The Challenge of Forestry. A compilation of the Addresses and Technical Papers presented on the Occasion of the 50th Anniversary Celebration of the State University College of Forestry at Syracuse University, April 12-14, 1961.
Biogeochemistry of vanadium
Helen L. Cannon
1962, Open-File Report 62-25
Vanadium is known to occur in soils as vanadates of copper, zinc, lead, uranium, ferric iron, manganese, calcium, and potassium. Vanadium replaces aluminum in clays and occurs in porphyrin complexes in bituminous sediments.Small amounts of vanadium are stimulating to plants; large amounts are toxic. Ten to 20 ppm vanadium in...
Current studies of the hydrology of prairie potholes
Jelmer B. Shjeflo
1962, Circular 472
The prairie potholes in the North-Central States and in Canada are of glacial origin. Because many of them contain ponds or marshes, they are important in the production of livestock and waterfowl. The objective of the present investigation is to determine the amount of water that accumulates in and is...
Notes on earth fissures in southern Arizona
G.M. Robinson, D.E. Peterson
1962, Circular 466
This report describes earth fissures at six sites in southern Arizona. These notes are preliminary to a more extensive study and detailed analysis being prepared by hydrologists in the Water Resources Division. Earth fissures were first recorded in Arizona in 1927, and have been noticed with increasing frequency since 1949....