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Publication Extents

Not all publications have extents, not all extents are completely accurate
Coal resources of the United States (a progress report, October 1, 1953)
Paul Averitt, Louise R. Berryhill, Dorothy A. Taylor
1953, Circular 293
As estimated in this second progress report, the coal reserves of the United States remaining in the ground on January 1, 1953, total 1,899,739 million tons. This figure is about a 20 percent reduction of the total estimate published in the first progress report (Averitt and Berryhill, 1950). The new...
Preliminary report on the Comet area, Jefferson County, Montana
George Earle Becraft
1953, Circular 277
Several radioactivity anomalies and a few specimens of sooty pitchblende and other uranium minerals have been found on the mine dumps of formerly productive base- and precious-metal mines along the Comet-Gray Eagle shear zone in the Comet area in southwestern Montana. The shear zone is from 50 to 200 feet...
Investigations of fluvial sediments of the Niobrara River near Valentine, Nebraska
Bruce R. Colby, D.Q. Matejka, David Wellington Hubbell
1953, Circular 205
This report contains results of observations that were made from the time when a natural constriction was formed in the Niobrara River near Valentine, Nebr., to the time when it was widened by high flows. After the constriction was widened, insufficient turbulence was developed to suspend most of the sediment....
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...