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Tracy

(Encyclopedia)Tracy, city (1990 pop. 33,558), San Joaquin co., central Calif., in the San Joaquin valley; inc. 1910. It is a railroad junction in a cattle and dairying region. Grapes, sugar beets, grain, fruit, nut...

Republican

(Encyclopedia)Republican, river, c.420 mi (680 km) long, formed in S Nebr. by the junction of the North Fork and Arikaree rivers. It is joined by the South Fork at Benkelman and flows E across the rolling grassland...

Paranaíba

(Encyclopedia)Paranaíba pərənīēˈbə [key], river, c.500 mi (800 km) long, rising in W Minas Gerais state, Brazil. It flows generally westward through an agricultural region before joining the Rio Grande to fo...

Navajo Dam

(Encyclopedia)Navajo Dam, 402 ft (123 m) high and 3,648 ft (1,112 m) long, NW N.Mex., on the San Juan River, near the Colo. line; built 1958–63 by the U.S. Bureau of Reclamation. The dam, a major unit of the Colo...

environmental impact statement

(Encyclopedia)environmental impact statement, analysis of the impact that a proposed development, usually industrial, will have on the natural and social environment. It includes assessment of long- and short-term ...

Roebling, John Augustus

(Encyclopedia)Roebling, John Augustus rōˈblĭng [key], 1806–69, German-American engineer, b. Mulhouse. He studied engineering in Berlin and in 1831 came to the United States. He demonstrated the practicability ...

Keith, Sir Arthur

(Encyclopedia)Keith, Sir Arthur, 1866–1955, British anatomist, b. Aberdeen, Scotland, educated at the Univ. of Aberdeen, University College, London, and the Univ. of Leipzig. He became conservator of the museum a...

Masters and Johnson

(Encyclopedia)Masters and Johnson, pioneering research team in the field of human sexuality, consisting of the gynecologist William Howell Masters, 1915–2001, b. Cleveland, and the psychologist Virginia Eshelman ...

Little Sioux

(Encyclopedia)Little Sioux so͞o [key], river, 221 mi (356 km) long, rising in SW Minn. and flowing generally SW across NW Iowa to the Missouri River S of Sioux City. Flowing through a rich agricultural area in the...

Manas

(Encyclopedia)Manas mänäsˈ [key], town and oasis, central Xinjiang Uygur Autonomous Region, China, on the Manas River, in the Dzungarian basin. It is the center of a large mechanized-farm area. Wheat, millet, su...