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Publications

Browse more than 160,000 publications authored by our scientists over the past 100+ year history of the USGS.  Publications available are: USGS-authored journal articles, series reports, book chapters, other government publications, and more.

Filter Total Items: 170393

Mineral deposits of the Ruby-Kuskokwim region

No abstract available.
Authors
J. B. Mertie

Mineral resources of the region around Boulder Dam

No abstract available.
Authors
D. F. Hewett, Eugene Callaghan, B.N. Moore, T.B. Nolan, W. W. Rubey, W. T. Schaller

Mortality of fish in Lake Erie

The food habits of Blue Grouse vary from a simple winter diet that is made up predominantly of coniferous needles to a complex diet during the summer months, characterized by great variety of foods including green leaves, fruits and seeds, flowers, animal matter and coniferous needles. The spring and fall, which represent the transition periods between these two, are characterized by feeding habit
Authors
John Van Oosten

Nephelometric determination of fluorine

Fluorine in minerals may be determined with the nephelometer to about 1 per cent of the fluorine. The determination is made on an aliquot of the sodium chloride solution of the fluorine, obtained by the Berzelius method of extraction. The fluorine is precipitated as colloidal calcium fluoride in alcoholic solution, gelatin serving as a protective colloid. Arsenates, sulfates, and phosphates, which
Authors
R. E. Stevens

Net selectivity on the Great Lakes

Two experiments, using 784 bobwhite quail chicks, were conducted at the Patuxent Research Refuge, Bowie, Maryland, to find a growing diet that would meet wartime restrictions. In 1941 a diet containing 14 per cent sardine fish meal was formulated and gave satisfactory results from the standpoints of survival and growth. Since fish meal now is scarce, search was made for a diet without war-restrict
Authors
John Van Oosten

New Upper Cretaceous Ostreidae from the Gulf region

No abstract available.
Authors
L. W. Stephenson

Part 2, The Mount Taylor coal field

No abstract available. 
Authors
C. B. Hunt

Part 3— The La Ventana-Chacra Mesa coal field

No abstract available.
Authors
Carle Hamilton Dane

Phosphate rock near Maxville, Philipsburg, and Avon, Montana

No abstract available.
Authors
J. T. Pardee