United States Geological Survey yearbook.

Report covers fiscal year.

Bulletin of the United States Geological Survey.

Mode of access: Internet.

Annual report of the United States Geological Survey to the Secretary of the Interior.

Includes papers which are also issued separately.

Suggestions to authors of the reports of the United States Geological Survey.

Earlier eds. published under title: Suggestions to authors of papers submitted for publication by the United States geological survey.

Geological Survey circular.

Place varies: Arlington, Va., <1977- >

Geological Survey bulletin.

Some numbers published in parts.

Bibliography of Publications Relating to Ground Water Prepared by the Geological Survey and Cooperating Agencies

Mode of access: Internet.

Topographic instructions of the United States Geological Survey.

At head of title: Department of the Interior. United States Geological Survey.

New publications of the Geological Survey /

Issues for Dec. 1988, July 1989 distributed to depository libraries in microfiche.

New Studies Initiated by the U.S. Geological Survey— Effects of Nutrient Enrichment on Stream Ecosystems

In 2001, the U.S. Geological Survey’s National Water-Quality Assessment (NAWQA) Program began an intensive study of nutrient enrichment—elevated concentrations of nitrogen and phosphorus— in streams in five agricultural basins across the Nation (see map, p. 2). This study is providing nationally consistent and comparable data and analyses of nutrient conditions, including how these conditions vary as a result of natural and human-related factors, and how nutrient conditions affect algae and other biological communities. This information will benefit stakeholders, including the U.S. Environmental Protection Agency (USEPA) and its partners, who are developing nutrient criteria to protect the aquatic health of streams in different geographic regions.

A sketch of the natural history of the District of Columbia together with an indexed ed. of the U. S. Geological survey's 1917 map of Washington and vicinity.

Mode of access: Internet.