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Water resources data for Kansas, water year 1972; Part 2, Water quality records
Water Resources Division, U.S. Geological Survey
1973, Water Data Report KS-72-2
Water-resources data for the 1972 water year for Kansas include records of data for the chemical and physical characteristics of surface and ground water. Data on the quality of surface water (chemical, microbiological, temperature, and sediment) were collected from designated sampling sites at predetermined intervals such as once daily, weekly,...
Atlas of Mars, Memnonia quadrangle, MC-16
United States Geological Survey
1973, Open-File Report 73-332
This mosaic was made with Mariner 9 pictures provided by the Jet Propulsion Laboratory (JPL), California Institute of Technology. The Image Processing Laboratory (IPL) of JPL processed the digital pictures to remove image artifacts and geometric distortions, to enhance high-frequency topographic detail while subduing low-frequency albedo variation, and to transform...
Ground-water levels in the United States, 1967-71, north-central States
Water Resources Division, U.S. Geological Survey
1973, Water Supply Paper 2090
Publication of ground-water level data for the United States in watersupply papers was begun by the Geological Survey in 1935. From 1935 through 1939, a single water-supply paper for each year covering the entire Nation was issued (Water-Supply Papers 777, 817, 840, 845, and 886). Since then water-supply papers have...
Preparative free-flow electrophoresis as a method of fractionation of natural organic materials
J.A. Leenheer, Ronald L. Malcolm
1973, Water Supply Paper 1817-D
Preparative free-flow electrophoresis was found to be an efficient method of conducting large-scale fractionations of the natural organic polyelectrolytes occurring in many surface waters and soils. The method of free-flow electrophoresis obviates, the problem of adsorption upon a supporting medium and permits the use of high potential gradients and currents...