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Astor, John Jacob, 1763–1848, American merchant

(Encyclopedia)Astor, John Jacob ăsˈtər [key], 1763–1848, American merchant, b. Walldorf, near Heidelberg, Germany. At the age of 16 he went to England, and five years later, in 1784, he arrived in Baltimore, p...

auxin

(Encyclopedia)auxin ôkˈsĭn [key], plant hormone that regulates the amount, type, and direction of plant growth. Auxins include both naturally occurring substances and related synthetic compounds that have simila...

White, Stanford

(Encyclopedia)White, Stanford, 1853–1906, American architect, b. New York City; son of Richard Grant White. In 1872 he entered the office of Gambrill and Richardson in Boston, at the time when H. H. Richardson wa...

brine shrimp

(Encyclopedia)brine shrimp, common name for a primitive crustacean that seldom reaches more than 1⁄2 in. (1.3 cm) in length and is commonly used for fish food in aquariums. Brine shrimp, which are not closely rel...

Rajapaksa, Mahinda

(Encyclopedia)Rajapaksa or Rajapakse, Mahinda mähĭnˈdä räjäpäkˈsə [key], 1945–, Sri Lankan political leader. A lawyer from a political family, he was first elected to parliament in 1970 as member of the ...

Duer, William

(Encyclopedia)Duer, William do͞oˈər, dyo͞oˈ– [key], 1747–99, political leader in the American Revolution and financier, b. Devonshire, England. He served for a time as aide-de-camp to Robert Clive in India...

Chautauqua movement

(Encyclopedia)Chautauqua movement, development in adult education somewhat similar to the lyceum movement. It derived from an institution at Chautauqua, N.Y. There, in 1873, John Heyl Vincent and Lewis Miller propo...

Aqaba, Gulf of

(Encyclopedia)Aqaba, Gulf of, northeastern arm of the Red Sea, 118 mi (190 km) long and 10 to 15 mi (16.1 to 24.1 km) wide, between the Sinai and Arabian peninsulas; a part of the Great Rift Valley. The gulf, which...

Nevins, Allan

(Encyclopedia)Nevins, Allan, 1890–1971, American historian, b. Camp Point, Ill. After studying at the Univ. of Illinois, he followed a career in journalism until 1927. Teaching at Columbia from 1928, he became a ...

Khartoum

(Encyclopedia)Khartoum kärto͞omˈ [key], city (1993 pop. 947,483), capital of Sudan, a port at the confluence of the Blue Nile and White Nile rivers. Khartoum is Sudan's second largest city and its administrative...