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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: 171816

Birds of the month

No abstract available.
Authors
C.S. Robbins

Birds of the month

No abstract available.
Authors
C.S. Robbins

Birds of the month

No abstract available.
Authors
C.S. Robbins

Birds of the season

No abstract available.
Authors
C.S. Robbins

Birds of the season

No abstract available.
Authors
C.S. Robbins

Botany and our social economy

No abstract available.
Authors
A. C. Martin

Calcium and phosphorus requirements of bobwhite quail chicks

Four experiments involving 873 bob-white quail (Colinus virginianus) chicks were conducted at the Patuxent Research Refuge, Laurel, Maryland. A comparison was made of calcium: phosphorus ratios of 1:1, 15:1, 1%: 1, 2:1, 2+:1,and 2%: 1in diets with phosphorus levels of 0.52, 0.75, 1.00, and 1.25 percent. The results indicate that the optimum level of phosphorus for growth is in the neighborhood of
Authors
R. B. Nestler, J.B. DeWitt, J.V. Derby, M. Moschler

Characteristic marine Jurassic fossils from the western interior of the United States

No abstract available.
Authors
R. W. Imlay

Choice of materials most suitable for ballast

No abstract available.
Authors
Leo Maddalena

Cobalt-copper deposits in the Blackbird district, Lemhi County, Idaho

No abstract available.
Authors
J. S. Vhay
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