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Page 7024, results 175576 - 175600

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Publication Extents

Not all publications have extents, not all extents are completely accurate
A fluorimeter for solutions
Mary H. Fletcher, E. Ray Warner
1953, Circular 311
description of and complete drawings for the construction of a fluorimeter for the measurement of fluorescence of solutions are given. The instrument is sturdy and versatile. It may be used with various phototubes and measuring devices. It is constructed so that phototubes and filters may be changed readily. Sensitivity is...
An occurrence of autunite, Lawrence County, South Dakota
Rollin C. Vickers
1953, Circular 286
In July 1952 an occurrence of autunite was found in the northern part of the Black Hills, South Dakota, during a reconnaissance for radioactive deposits. The autunite occurs as fracture coatings and disseminations in siltstone of the Deadwood formation of Cambrian age and is concentrated mainly in the lower 2...
Measurement of earth pressure in the iron-ore mines of eastern France
M.E. Tincelin
1953, Open-File Report 54-30
The purpose of the tests, which will be reported later, is to measure as precisely as possible the tangential stresses exerted on the periphery of a gallery cut in the Lorraine iron ore. The values of the tangential stresses along the periphery being known, they will be compared with the values...
Geology and cement raw materials of the Windy Creek area, Alaska
R.M. Moxham, R.A. Eckhart, E.H. Cobb, W.S. West, A. E. Nelson
1953, Open-File Report 53-196
The Windy Creek area, on the south flank of the Alaska Range in the Alaska Railroad belt, contains deposits of raw materials which could be utilized in the manufacture of portland cement.Bedrock in this region includes limestone, argillaceous rocks, chert, and a wide variety of other lithologic types ranging in...