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Ziegler, Karl

(Encyclopedia) Ziegler, KarlZiegler, Karltsēˈglər [key], 1898–1973, German chemist. Educated at the Univ. of Marburg, he taught at Heidelberg and Halle and for a short period at the Univ. of Chicago…

Berlin airlift

(Encyclopedia) Berlin airlift, 1948–49, supply of vital necessities to West Berlin by air transport primarily under U.S. auspices. It was initiated in response to a land and water blockade of the…

Wrexham

(Encyclopedia) WrexhamWrexhamrĕkˈsəm [key], Welsh Wrescam, town (1981 pop. 39,929) and county borough, 193 sq mi (499 sq km), NE Wales. It lies in the coal field of N Wales. Wrexham's industries…

Port Harcourt

(Encyclopedia) Port HarcourtPort Harcourthärˈkərt, –kôrt [key], city (1991 est. pop. 362,000), SE Nigeria, a deepwater port on the Bonny River in the Niger delta. It is an industrial and commercial…

Pôrto Alegre

(Encyclopedia) Pôrto AlegrePôrto Alegrepōrˈt&oobreve; əlĕˈgrə [key], city (1991 pop. 1,263,403), capital of Rio Grande do Sul state, SE Brazil, on the Guaíba River. One of the chief industrial…

Ordos

(Encyclopedia) OrdosOrdosôrˈdōs [key], Mandarin Erdesi, sandy desert plateau region, c.35,000 sq mi (90,650 sq km), Inner Mongolian Autonomous Region, N China; almost encircled by the great northern…

pantanal

(Encyclopedia) pantanalpantanalpəntənälˈ [key], lowland region of SW Mato Grosso state, Brazil, bordering the Paraguay River and extending to the the western edge of the Brazilian Plateau. Parts of…

Parkfield

(Encyclopedia) Parkfield, uninc. town (2000 pop. 37), Monterey co., Calif., among rolling hills in the Coast Ranges. A mining center for mercury and coal in the early 1900s, when the town had 900…

silicosis

(Encyclopedia) silicosissilicosissĭlĭkōˈsĭs [key], occupational disease of the lungs caused by inhalation of free silica (quartz) dust over a prolonged period of time. Free silica is dispersed in the…

Still, William

(Encyclopedia) Still, William, 1821–1902, American abolitionist, b. Burlington co., N.J. After he moved to Philadelphia (1844), he began working for the Pennsylvania Anti-Slavery Society (1847) and…