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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.

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Filter Total Items: 171122

The coal fields of Ohio, with a computation of the original coal content of the fields

No abstract available.
Authors
J. A. Bownocker, F. R. Clark

The coal fields of the United States

No abstract available.
Authors
M. R. Campbell

The divining rod: A history of water witching, with a bibliography

The use of a forked twig, or so-called divining rod, in locating minerals, finding hidden treasure, or detecting criminals is a curious superstition that has been a subject of discussion since the middle of the sixteenth century and still has a strong hold on the popular mind, even in this country, as is shown by the large number of inquiries received each year by the United States Geological Surv
Authors
Arthur Jackson Ellis

The enrichment of ore deposits

No abstract available.
Authors
William H. Emmons

The flora of the Fox Hills sandstone

No abstract available.
Authors
F. H. Knowlton

The Garrison and Philipsburg phosphate fields, Montana

No abstract available.
Authors
J. T. Pardee

The geology and ore deposits of Ely, Nevada

No abstract available.
Authors
A.C. Spencer

The Helderberg limestone of central Pennsylvania

This paper presents the results of a study made during 1913, 1914, and 1915, while the writer was a student at Johns Hopkins University. The formations discussed have been studies in Maryland, New Jersey, and New York, and described with more or less detail, but concerning their occurrence in the intervening area in Pennsylvania little exact information has been available. The conflict in opinion
Authors
John B. Reeside

The inorganic constituents of marine invertebrates

No abstract available.
Authors
F. W. Clarke, W. C. Wheeler

The people's interest in water-power resources

No abstract available.
Authors
George Otis Smith

The physical conditions and age indicated by the flora of the Alum Bluff formation

The present paper has for its purpose the description of a small flora collected from the Alum Bluff formation, representing a horizon hitherto unrepresented paleobotanically in southeastern North America, and the discussion of the bearing of this flora on the physical conditions of deposition and the probable age of the deposits.
Authors
Edward Wilber Berry

The physical conditions indicated by the flora of the Calvert formation

The object of the present paper is to give a summary of the small flora preserved in the Miocene diatomaceous beds of the Calvert formation in the District of Columbia and Virginia, and more especially to discuss its bearing on the physical conditions of the Calvert epoch. Subsequent to the middle Eocene the next abundant marine fauna preserved along the middle Atlantic coast is that of the Calver
Authors
Edward Wilber Berry