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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

Surface water supply of the United States, 1938, Part VII, Lower Mississippi River basin

No abstract available.
Authors

The age, growth, and feeding habits of the whitefish Coregonus clupeaformis (Mitchell), of Lake Champlain

This study is based on 120 whitefish collected in northern Lake Champlain (Missisquoi Bay) in 1930 and on 175 whitefish taken in southern Lake Champlain in 1931. Since the whitefish population had not been exploited commercially after 1912 in United States waters and after 1915 in Canadian waters, its study should be of interest in showing the characteristics of a population practically untouched
Authors
John Van Oosten, Hilary J. Deason
By
Ecosystems Mission Area, Great Lakes Science Center

The age, growth, sexual maturity, and sex ratio of the common whitefish, Coregonus clupeaformis (Mitchill), of Lake Huron

During five years (1939-43) of nutritional research on pen-reared bobwhite quail at the Patuxent Research Refuge, Bowie, Maryland, observations on picking among birds of all ages showed the following results: 1. Picking occurred on all grains tested: corn, wheat, oats, oat groats, barley, millet, buckwheat, kaffir, and mixtures of cereals. The lowest incidence was with buckwheat as the sole grain
Authors
John Van Oosten
By
Ecosystems Mission Area, Great Lakes Science Center

The coal resources of McCone County, Montana

No abstract available.
Authors
Arthur James Collier, Maxwell McMichael Knechtel

The distribution of cottid fishes in Lake Michigan

Abstract has not been submitted
Authors
Hilary J. Deason
By
Ecosystems Mission Area, Great Lakes Science Center

The evolution of habit in Tempskya

1. The genus Tempskya Corda, of Upper Cretaceous age in western America, is characterized by a markedly dichotomous solenostelic stem system sheathed in a felt of its own adventitious roots. A composite stemlike structure is thus formed which has been termed a false stem. 2. As primary bases for the discussion, it is assumed that the false stem is a composite "organ" analogous to a true stem in ce
Authors
C.B. Read

The Mizpah coal field, Custer County, Montana

No abstract available.
Authors
Frank Stephens Parker, David A. Andrews

The Venericardia planicosta group in the Gulf province

No abstract available.
Authors
Julia Gardner, Edgar Bowles

Transit traverse in Missouri, 1900-1937. Part 1, Southeastern Missouri, 1903-37

This bulletin, which for convenience is to be published in eight parts, contains the results of all transit traverse* done In Missouri through 1937 by the Geological Survey, United States Department of the Interior, including those heretofore published. (See page X.) Each of the parts deals with one of eight sections into which the State has been divided for this purpose and which have been design
Authors
John G. Staack

Water levels and artesian pressures in observation wells in the United States in 1938

No abstract available.
Authors
O. E. Meinzer, L.K. Wenzel

Water utilization in the basin of South Umpqua River, Oregon

No abstract available.
Authors
R.O. Helland

The significance and nature of the cone of depression in ground-water bodies

In nature the hydraulic system in an aquifer is in balance; the discharge is equal to the recharge and the water table or other piezometric surface is more or less fixed in position. Discharge by wells is a new discharge superimposed on the previous system. Before a new equilibrium can be established water levels must fall throughout the aquifer to an extent sufficient to reduce the natural discha
Authors
Charles V. Theis
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