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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: 171804

The recovery of ground‐water levels in Nebraska in 1935

A program of water‐level measurements in about 350 wells scattered throughout Nebraska was begun in 1934 by the United States Geological Survey in cooperation with the Conservation and Survey Division of the University of Nebraska (see L. K. Wenzel, A state‐wide program of periodic measurements of ground‐water level in Nebraska, Trans. Amer. Geophys. Union, 16th annual meeting, pp. 495–498, 1935).
Authors
Leland K. Wenzel

Dissolved mineral matter in surface‐waters

The only unpublished comprehensive Geological Survey records of dissolved matter in surface‐waters are the results obtained in the study of the Colorado River and its tributaries since 1930. The records are mainly analyses of 10‐day composites of daily samples, although there are several analyses of spot‐samples from some streams in the basin and about 4000 single determinations of chloride or sul
Authors
W. D. Collins

Hydrothermal leaching in the Virginia mining district, New Mexico

The tourmaline-copper deposits of the Virginia mining district, New Mexico, lie along veins that were plugged and reopened repeatedly during the process of mineral deposition. At some time between the second and third stages of deposition the solutions removed calcite, sericite, and chlorite from interstitial and included fragments of altered wall-rock in the veins and thereby produced honeycombed
Authors
Samuel Grossman Lasky

Cinnabar deposits in southwestern Arkansas

No  abstract available. 
Authors
John Calvin Reed

Nodular, orbicular, and banded chromite in northern California

IN I930 Mr. A. F. Duggleby gave me a specimen of orbicular chromite from the Octopus claim, in Siskiyou County, Calif., showing two generations of chromite, one older than the associated olivine and one younger. In November, I93I, I examined briefly a number of deposits in northern California, in search for chromite showing similar and related textures. Some of the more unusual and genetically sig
Authors
W. D. Johnston

Suggestions on trapping coyotes and wolves in Alaska

No abstract available.
Authors
Harlan H. Gubser

Copper deposits of the southern Appalachian region; discussion

No abstract available.
Authors
Clarence Samuel Ross

Raising guinea pigs

No abstract available.
Authors

Forestry and game management

No abstract available.
Authors
Herman Haupt Chapman

A cage trap useful in the control of white-necked ravens.

No abstract available.
Authors
Shaler E. Aldous

Mineral resources of Alaska: report on progress of investigations in 1933

No abstract available.
Authors
Philip S. Smith

Pertinent facts on the Angora wool rabbit

No abstract available.
Authors
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