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tin

(Encyclopedia)tin, metallic chemical element; symbol Sn [Lat. stannum]; at. no. 50; at. wt. 118.710; m.p. 231.9681℃; b.p. 2,270℃; sp. gr. 5.75 (gray), 7.3 (white); valence +2 or +4. Tin exhibits allotropy; abov...

Ku Klux Klan

(Encyclopedia)Ku Klux Klan ko͞oˌ klŭks klăn [key], designation mainly given to two distinct secret societies that played a part in American history, although other less important groups have also used the name....

Cole, Timothy

(Encyclopedia)Cole, Timothy, 1852–1931, American wood engraver, b. London. He came to the United States as a child. Cole learned his trade in Chicago and later moved to New York, where in 1873 he began his 40-yea...

Hawkwood, Sir John de

(Encyclopedia)Hawkwood, Sir John de, d. 1394, English soldier. He fought in the French wars of Edward III and was knighted, although it is not known when or where. With his “white company” of mercenaries, he en...

anglesite

(Encyclopedia)anglesite ăngˈgləsīt [key], pale green, blue, yellow-to-white, or colorless mineral, a sulfate of lead, PbSO4, that is formed by oxidation of galena, crystallizing in the orthorhombic system and o...

Chase, Mary Ellen

(Encyclopedia)Chase, Mary Ellen, 1887–1973, American educator and writer, b. Blue Hill, Maine, grad. Univ. of Maine, 1909. Her works, set in Maine and excellent in their regional fidelity, include a biography and...

delftware

(Encyclopedia)delftware. The earliest delftware was a faience, a heavy, brown earthenware with opaque white glaze and polychrome decoration, made in the late 16th cent. Some of the earliest imitations of Chinese an...

Dvina, river, Russia

(Encyclopedia)Dvina dvēnäˈ [key] or Northern Dvina, Rus. Severnaya Dvina, river, c.465 mi (750 km) long, N European Russia. It is formed near Veliki Ustyug by the union of the Sukhona and Yug rivers, flows N pas...

Burke, Kenneth Duva

(Encyclopedia)Burke, Kenneth Duva, 1897–1993, American critic, b. Pittsburgh, Pa. He was music critic for The Dial (1927–29) and The Nation (1934–36). A profound thinker whose writings have influenced other c...

Waubeshiek

(Encyclopedia)Waubeshiek wôˈbəshēk [key], c.1794–c.1841, Native North American prophet, also known as White Cloud. He was a friend and adviser of Black Hawk and by prophesying victory was chiefly responsible ...
 

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