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Page 5926, results 148126 - 148150

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Regional trends in water-well drilling in the United States
Gerald Meyer, Granville G. Wyrick
1966, Circular 533
Between the towns of Macon and Taylorville in central Illinois lies a ridge that is part of a system of ridges and knolls largely composed of sand and gravel. This ridge contains an important aquifer. An extensive electrical earth resistivity survey was conducted over the ridged-drift aquifer. Inversion of the...
Evaluation of p,p'-DDT as a reference toxicant in bioassays
Leif L. Marking
1966, Investigations in Fish Control 10
p,p'-DDT was tested as a reference standard toxicant against 19 species of freshwater fish, including 39 lots from 10 sources. In particular, the rapidity, nonselectivity, and consistency of its toxicity to fish were evaluated in 96-hour static bioassays. The chemical was rapidly and consistently toxic to lake trout, carp, green...
Plant microfossils from the Lakota Formation
Robert H. Tschudy, Sharon D. Van Loenen
1966, Open-File Report 66-134
As a part of continuing studies to provide palynological data from critical sequences for comparative biostratigraphic studies, the microfossils found in a sample of "Pine Needle" coal have been examined and photographed. The assemblage is presented on one plate....