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Browse almost 5,000 conference papers authored by our scientists and refine search by topic, location, year, and advanced search.

Filter Total Items: 5518

Government responsibility for land and water: Guardian or developer? Government responsibility for land and water: Guardian or developer?

Ideas and concepts become obsolete just as do specific techniques. Obsolescence is the inevitable companion of progress; in fact, it is a sign of progress, provided that the obsolescence is recognized.
Authors
Luna Bergere Leopold, Raymond L. Nace

Pesticides— A new factor in coastal environments Pesticides— A new factor in coastal environments

No abstract available.
Authors
Philip A. Butler, Paul F. Springer
By
Ecosystems Mission Area, Eastern Ecological Science Center, Northern Prairie Wildlife Research Center

Quantitation of microorganic compounds in waters of the Great Lakes by adsorption on activated carbon Quantitation of microorganic compounds in waters of the Great Lakes by adsorption on activated carbon

Microorganic compounds in waters of Lakes Michigan and Huron have been sampled by adsorption on activated carbon in filters installed aboard the M/V Cisco and at the Hammond Bay Laboratory of the U.S. Bureau of Commercial Fisheries. The organic compounds were eluted from the carbon according to techniques developed at the U.S. Public Health Service. On the assumption that chloroform...
Authors
Stacy L. Daniels, Lloyd L. Kempe, E. S. Graham, Alfred M. Beeton
By
Ecosystems Mission Area, Great Lakes Science Center

Simple measurements of morphological changes in river channels and hillslopes Simple measurements of morphological changes in river channels and hillslopes

One of the principal types of observational evidence on climatic changes in the recent geologic past is in river position and elevation. It is well known that river channels, particularly those flowing through alluvium or on relatively soft bedrock, tend to develop flood plains by lateral migration of the channel. Abandoned flood plains at elevations distinctly above the present river...
Authors
J.P. Miller, Luna Bergere Leopold

Some climatic indicators in the period A.D. 1200-1400 in New Mexico Some climatic indicators in the period A.D. 1200-1400 in New Mexico

Three centuries before Columbus landed in America, the alluvial valleys of the south-western United States teemed with activity. The indigenous peoples had been building for 300 years a culture centred around community life based on flood-water farming and on hunting. A large number of pueblos had developed on sites earlier occupied by pit-house people. Community organization had brought...
Authors
Luna Bergere Leopold, Estella B. Leopold, F. Wendorf

The movement, heterogeneity, and rate of exploitation of walleyes in northern Green Bay, Lake Michigan, as determined by tagging The movement, heterogeneity, and rate of exploitation of walleyes in northern Green Bay, Lake Michigan, as determined by tagging

The Michigan waters of northern Green Bay are an important center for commercial and sport fishing. This 400-square-mile area has supported a commercial fishery for many years but the development of the intensive sport fishery is more recent, mostly since World War II. The commercial fishery is based on several species, whereas anglers are particularly interested in the walleye...
Authors
Walter R. Crowe, Ernest G. Karvelis, Leonard S. Joeris
By
Ecosystems Mission Area, Great Lakes Science Center
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