Report of the United States Geological Survey of the territories. F.V. Hayden, United States geologist in charge ... [Final reports or monographs. vol. I]-III, V-XIII.

5

Geological Survey of California. Palæontology Pub. by authority of the Legislature of California.

1

Geological Survey of California. Palæontology Pub. by authority of the Legislature of California.

2

Report of the United States Geological Survey of the territories. F.V. Hayden, United States geologist in charge ... [Final reports or monographs. vol. I]-III, V-XIII.

3, Text

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.

Report of progress - Geological Survey of Canada.

Contents of each report may be found in "List of publications of the Geological survey of Canada. 1906."

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.

Records of the Geological Survey of India.

1867- includes the "Annual report of the Geological survey of India".

Summary of progress of the Geological Survey of Great Britain and the Museum of Practical Geology.

Description based on: 1907.

Topographic instructions of the United States Geological Survey.

Book 3, Chapter 3F5. Kelsh plotter procedures -- Book 3, Chapter 3G1. Planimetric map compilation with trimetrogon photographs -- Book 4, chapters 4B1-4B3. Color-separation scribing.

Geological Survey water-supply paper.

Some vols. have title: U.S. Geological Survey water-supply paper; or: United States Geological Survey water-supply paper.