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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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January 1, 1949

Corundum deposits of Montana

No abstract available.

Authors

Stephen Edmund Clabaugh

January 1, 1949

Culture of Daphnia

No abstract available at this time

Authors

E. W. Surber

Ecosystems Mission Area, Eastern Ecological Science Center

January 1, 1949

DDT and the balance of nature

No abstract available.

Authors

J.P. Linduska

Ecosystems Mission Area, Eastern Ecological Science Center

January 1, 1949

Decline of pumping levels in Houston municipal wells, 1939-49

No abstract available.

Authors

J.W. Lang

January 1, 1949

Detailed geologic map of the recently active copper mines; Houghton and Keweenaw Counties, Michigan

No abstract available.

Authors

H. R. Cornwall, J.J. Runner, A. A. Stromquist, R. W. Swanson, W. S. White

January 1, 1949

Determination of color of turbid waters

A convenient procedure for determining the color of turbid waters, using the principle of precipitation of turbidity by the electrolyte calcium chloride, is described. Because the stable turbidity of many surface waters cannot be completely precipitated by conventional centrifuging alone, this procedure presents a means of flocculating the turbidity without affecting the true color of the water. I

Authors

W.L. Lamar

January 1, 1949

Determination of lithium in rocks by distillation

A method for the quantitative extraction and recovery of lithium from rocks is based on a high temperature volatilization procedure. The sample is sintered with a calcium carbonate-calcium chloride mixture at 1200° C. for 30 minutes in a platinum ignition tube, and the volatilization product is collected in a plug of Pyrex glass wool in a connecting Pyrex tube. The distillate, which consists of th

Authors

M. H. Fletcher

January 1, 1949