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siderite

(Encyclopedia)siderite kălˈĭbīt [key], a mineral, varying in color from brown, green, or gray to black and occurring in nature in massive and crystalline form. A carbonate of iron, FeCO3, it serves as an iron o...

Onsager, Lars

(Encyclopedia)Onsager, Lars, 1903–76, American physical chemist, b. Oslo, Ph.D. Yale, 1935. Onsager taught at Brown Univ. from 1928 to 1933 and was on the faculty at Yale from 1933 until his retirement in 1972. H...

Hood, Raymond Mathewson

(Encyclopedia)Hood, Raymond Mathewson, 1881–1934, American architect, b. Pawtucket, R.I. He studied at Brown Univ., Massachusetts Institute of Technology, and the École des Beaux-Arts, Paris. In 1922 he was the ...

Southdown sheep

(Encyclopedia)Southdown sheep, mutton breed of sheep originated on the South Downs of Sussex, England, and now raised throughout the world. It is a small sheep, the most thickset of all breeds, and it is valued for...

Weelkes, Thomas

(Encyclopedia)Weelkes, Thomas, c.1575–1623, English composer. His four books of madrigals (1597–1600) mark Weelkes as one of the great English madrigalists. His music is remarkable for melodic characterization ...

Waziristan

(Encyclopedia)Waziristan wəzēˈrĭstänˌ [key], region (1981 est. pop. 545,000), 4,473 sq mi (11,585 sq km), Khyber Pakhtunkhwa (formerly North-West Frontier Province), Pakistan, on the Afghanistan border. An ex...

New Ulm

(Encyclopedia)New Ulm ŭlm [key], city (1990 pop. 13,132), seat of Brown co., S Minn., at the confluence of the Minnesota and Cottonwood rivers; inc. as a city 1876. It is a processing and trade center for an agric...

Atlanta University Center

(Encyclopedia)Atlanta University Center, at Atlanta, Ga.; coeducational. The largest consortium of historically African-American educational institutions in the country, it was organized in 1929 when three schools�...

Ayrshire cattle

(Encyclopedia)Ayrshire cattle rˈshēr, –shər [key], breed of dairy cattle originated in Scotland in the late 18th cent.; introduced into the United States in 1837. They are medium-sized and white mixed with red...

Osawatomie

(Encyclopedia)Osawatomie ōˌsəwŏtˈəmē, ŏsˌə– [key], city (1990 pop. 4,590), Miami co., E Kans., on the Marais des Cygnes River; founded 1855 by the New England Emigrant Aid Company, inc. 1883. The town, ...