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cassiterite

(Encyclopedia)cassiterite kəsĭtˈərīt [key], heavy, brown-to-black mineral, tin oxide, SnO2, crystallizing in the tetragonal system. It is found as short prismatic crystals and as irregular masses, usually in v...

bat

(Encyclopedia)bat, winged mammal of the order Chiroptera, which includes 900–1,000 species classified in about 200 genera and 17 families. Bats range in size from a wingspread of over 5 ft (150 cm) to a wingsprea...

Hawkes, John

(Encyclopedia)Hawkes, John (John Clendennin Burne Hawkes, Jr.), 1925–98, American writer, b. Stamford, Conn., grad. Harvard, 1949. He taught English at Brown Univ. after 1958. Hawkes is considered one of the most...

Margaret

(Encyclopedia)Margaret, 1930–2002, British princess, second daughter of King George VI and sister of Queen Elizabeth II, b. Glamis, Scotland. In 1960 she married a commoner, the photographer Antony Armstrong-Jone...

Briggs, Le Baron Russell

(Encyclopedia)Briggs, Le Baron Russell, 1855–1934, American educator, b. Salem, Mass., grad. Harvard (B.A., 1875; M.A., 1882). As a teacher at Harvard he developed, with Barrett Wendell, a prescribed and widely i...

Britton, Nathaniel Lord

(Encyclopedia)Britton, Nathaniel Lord, 1859–1934, American botanist, grad. Columbia School of Mines, 1879. He taught geology and botany at Columbia, 1879–96. He was the New York Botanical Garden's first directo...

black-eyed Susan

(Encyclopedia)black-eyed Susan or yellow daisy, North American daisylike wildflower (Rudbeckia hirta) of the family Asteraceae (aster family) with yellow rays and a dark brown center. It is a weedy biennial or annu...

Timaeus , Greek historian

(Encyclopedia)Timaeus tīmēˈəs [key], c.356–c.260 b.c., Greek historian of Tauromenium (now Taormina), Sicily. Son of the tyrant of the city, he was banished by Agathocles either in 317 or 312 b.c. and lived f...

sphalerite

(Encyclopedia)sphalerite sfălˈərīt, sfāˈ– [key], mineral composed of zinc sulfide, usually containing some iron and a little cadmium. It occurs in crystals of the isometric system but more generally in clea...

Liberal Republican party

(Encyclopedia)Liberal Republican party, in U.S. history, organization formed in 1872 by Republicans discontented at the political corruption and the policies of President Grant's first administration. Other disaffe...