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Page 5910, results 147726 - 147750

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Geological Survey research 1966, Chapter B
Water Resources Division, U.S. Geological Survey
1966, Professional Paper 550-B
This collection of 43 short papers is the first published chapter of 'Geological Survey Research 1966.' The papers report on scientific and economic results of current work by members of the Conservation, Geologic, Topographic, and Water Resources Divisions of the U.S. Geological Survey. Chapter A, to be published later in...
Geological Survey Research 1966, Chapter A
Water Resources Division, U.S. Geological Survey
1966, Professional Paper 550-A
'Geological Survey Research 1966' is the seventh annual review of the econamic and scientific work of the U.S. Geological Survey. As in previous years the purpose of the volume is to make available promptly to the public the highlights of Survey investigations. This year the volume consists of 4 chapters...
Evaporation study in a humid region, Lake Michie, North Carolina
J.F. Turner Jr.
1966, Professional Paper 272-G
The mass-transfer and water-budget techniques of calibrating a reservoir for evaporation were evaluated through a study of Lake Michie, N.C. The techniques appear adequate for estimation of lake evaporation and net seepage in humid regions where lake storage is affected by streamflow and ground-water seepage, under conditions no more adverse...
Treatment of East Bay, Alger County, Michigan, with toxaphene for control of sea lampreys
William E. Gaylord, Bernard R. Smith
1966, Investigations in Fish Control 7
An experiment was conducted to determine whether toxaphene can be used to eradicate lake-dwelling sea lampreys and to determine its effect on fish populations. In East Bay, a 78-acre lake on the Sucker River, Alger County, Mich., an estimated concentration of 100 parts per billion was maintained for 14 days....
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...
Treatment of East Bay, Alger County, Michigan, with toxaphene for control of sea lampreys
William E. Gaylord, Bernard R. Smith
1966, Resource Publication 11
An experiment was conducted to determine whether toxaphene can be used to eradicate lake-dwelling sea lampreys and to determine its effect on fish populations. In East Bay, a 78-acre lake on the Sucker River, Alger County, Mich., an estimated concentration of 100 parts per billion was maintained for 14 days....
Geology and water resources of Winnebago County, Wisconsin
Perry C. Olcott
1966, Water Supply Paper 1814
Sources or water in Winnebago County include surface water from the Fox and Wolf Rivers and their associated lakes, and ground water from sandstone, dolomite, and sand and gravel deposits. Surface water is hard and generally requires treatment, but is then suitable for municipal and most industrial uses. Pollution is...
Methods for analysis of selected metals in water by atomic absorption
Marvin J. Fishman, Sanford C. Downs
1966, Water Supply Paper 1540-C
This manual describes atomic-absorption-spectroscopy methods for determining calcium, copper, lithium, magnesium, manganese, potassium, sodium, strontium and zinc in atmospheric precipitation, fresh waters, and brines. The procedures are intended to be used by water quality laboratories of the Water Resources Division of the U.S. Geological Survey. Detailed procedures, calculations, and methods...
Recharge studies on the High Plains in northern Lea County, New Mexico
John S. Havens
1966, Water Supply Paper 1819-F
The area described in this report is that part of the southern High Plains principally within northern Lea County, N. Mex. ; it comprises about 1,400,000 acres. Hydrologic boundaries isolate the main aquifer of the area, the Ogallala Formation, from outside sources of natural recharge other than precipitation on the...
Summary of hydrologic conditions of the Louisville area, Kentucky
Edwin Allen Bell
1966, Water Supply Paper 1819-C
Water problems and their solutions have been associated with the growth and development of the Louisville area for more than a century. Many hydrologic data that aided water users in the past can be applied to present water problems and will be helpful for solving many similar problems in the...
Fresh-water discharge salinity relations in the tidal Delaware River
Walter B. Keighton
1966, Water Supply Paper 1586-G
Sustained flows of fresh water greater than 3,500, 4,400, and 5,300 cubic feet per second into the Delaware River estuary at Trenton, NJ assure low salinity at League Island, Eddystone, and Marcus Hook, respectively. When the discharge at Trenton is less than these critical values, salinity is very sensitive to...