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Page 6511, results 162751 - 162775

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Publication Extents

Not all publications have extents, not all extents are completely accurate
The American species of Orthophragmina and Lepidocyclina
J.A. Cushman
1920, Professional Paper 125-D
Orbitoid Foraminifera, on account of their short stratigraphic range, have proved to be excellent horizon markers, and, because of their wide geographic distribution, they are valuable in correlation. The genus Orbitoides, as now restricted, is found exclusively in deposits of Cretaceous age, Orthophragmina appears to be confined to the...
An Eocene flora from trans-Pecos Texas
Edward Wilber Berry
1920, Professional Paper 125-A
During the fall of 1916 I received a small collection of fossil plants which had been obtained during a geologic reconnaissance of the trans-Pecos region of Texas, by Charles Lawrence Baker. A preliminary report was sent to Mr. Baker in November of that year and was quoted in his...
Forty-first annual report of the Director of the United States Geological Survey
George Otis Smith
1920, Annual Report 41
The appropriations for the public work under the United States Geological Survey for the fiscal year 1919-20 comprised items amounting to $1,586,353.50.   In general the results of the varied activities of the Geological Survey may be regarded as meeting with a constantly increasing measure of public approval, as shown by the...