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Ground water in the Yelm area, Thurston and Pierce counties, Washington
Maurice John Mundorff, James M. Weigle, Glen D. Holmberg
1955, Circular 356
This report presents the results of an investigation of the ground-water resources of the Yelm area, Pierce and Thurston Counties, Wash. It was made at the request of the Division of Water Resources, Washington State Department of Conservation and Development, for the purpose of determining the availability of ground water...
Fitting curves to cyclic data
W. B. Langbein
1955, Open-File Report 55-91
A common problem in hydrology is to fit a smooth curve to cyclic or periodic data, either to define the most probable values of the data or to test some principle that one wishes to demonstrate.  This study treats of those problems where the length or period of the cycle...
On the air-scattering of gamma rays from thick uranium sources
Arthur Y. Sakakura
1955, Trace Elements Investigations 595
Semiquantative interpretation of data from airborne radioactivity surveying requires detailed knowledge of air-scattered gamma-ray intensity at considerable air distances from natural, thick uranium sources. Based on the concept of an elementary source of infinite thickness rather than on the classical point source, semi-empirical expressions, are developed for measured gamma-radiation intensities from . the...