Publications
Browse more than 150,000 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.
Upper Midwest Environmental Sciences Center Publications
Filter Total Items: 3295
Water resources of the Mustinka and Bois de Sioux Rivers watershed, west-central Minnesota Water resources of the Mustinka and Bois de Sioux Rivers watershed, west-central Minnesota
The Mustinka and Bois de Sioux Rivers watershed is mantled by till deposits with scattered sand deposits. The west-central and northwestern part of the watershed was covered by Glacial Lake Agassiz and the resulting land surface is a flat, lake-washed till plain. Patches and ridges of sand scattered throughout the lake plain were formed as beach ridges and offshore bars. Small, isolated...
Authors
R.W. Maclay, Thomas C. Winter, L. E. Bidwell
Gas chromatographic separation and quantitative estimation of barbiturate mixtures in solid dosage forms Gas chromatographic separation and quantitative estimation of barbiturate mixtures in solid dosage forms
A gas chromatographic method has been described for the analysis of mixed barbiturates in solid dosage forms. Analysis on a 10% SE-30 column gave good separations for butabarbital, amobarbital, secobarbital, pentobarbital, and/or phenobarbital; amobarbital is not separated adequately from pentobarbital. An internal standard, mephobarbital, is used to minimize injection errors. The method...
Authors
J. L. Allen
Geological Survey research 1968: Chapter C Geological Survey research 1968: Chapter C
No abstract available.
Authors
Water Resources Division U.S. Geological Survey
Clearance and registration of chemical tools for fisheries Clearance and registration of chemical tools for fisheries
No abstract available.
Authors
Robert E. Lennon
Selected strains of fish as bioassay animals Selected strains of fish as bioassay animals
No abstract available.
Authors
Robert E. Lennon
A powered spreader for antimycin A powered spreader for antimycin
No abstract available.
Authors
Robert E. Lennon, B.L. Berger, P.A. Gilderhus
Effects of diquat on bluegills and their food organisms Effects of diquat on bluegills and their food organisms
No abstract available.
Authors
Philip A. Gilderhus
Geochemistry and ground-water movement in northwestern Minnesota Geochemistry and ground-water movement in northwestern Minnesota
The relation between water quality and water movement within the ground-water reservoir may be better understood if studies of flow systems are used in conjunction with hydrochemical methods. Within small watersheds, local, intermediate, and regional flow systems may develop, depending upon the shape, the relief, and the thickness of the ground-water reservoir. Lateral and vertical...
Authors
R.W. Maclay, T. C. Winter
Comparison of three methods of sampling trout blood for measurements of hematocrit Comparison of three methods of sampling trout blood for measurements of hematocrit
Trout blood is frequently collected for hematocrit measurements by excising the caudal fin (Snieszko, 1960), but this technique is impractical if valuable fish are to be sampled or if repeated observations are desired. Schiffman (1959) and Snieszko (1960) collected blood from the dorsal aorta and the heart, but these methods are relatively slow and require the preparation of needles and...
Authors
Erwin W. Steucke, Richard A. Schoettger
Water resources of the Two Rivers Watershed, Northwestern Minnesota Water resources of the Two Rivers Watershed, Northwestern Minnesota
The Two Rivers watershed includes two physiographic areas a lake plain and a till plain – within its 1,232 square miles. It lies in parts of Kittson and Roseau counties and includes the drainage basins of the Two Rivers and Joe River. The flat lake plain which extends 15 to 20 miles east of the Red River of the North is extensively cultivated for small grains and sugar beets. The gently...
Authors
R.W. Maclay, Thomas C. Winter, G.M. Pike
Small stream flood investigations in Minnesota, October 1958 to September 1965 Small stream flood investigations in Minnesota, October 1958 to September 1965
No abstract available.
Authors
L.C. Guetzkow, K.T. Gunard
Flow characteristics of Michigan streams Flow characteristics of Michigan streams
No abstract available.
Authors
R. L. Knutilla