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de Vries, Hugo

(Encyclopedia)de Vries, Hugo hüˈgō də vrēs [key], 1848–1935, Dutch botanist. He opened a new approach to the study of evolution by using the experimental method to investigate the processes of evolution. His...

Green River

(Encyclopedia)Green River. 1 River, 370 mi (595 km) long, rising in central Ky. and flowing generally NW, through Mammoth Cave National Park, to the Ohio River near Evansville, Ind. Locks and dams make the Green Ri...

Brahma

(Encyclopedia)Brahma bräˈmə [key], a god often identified, with Vishnu and Shiva, as one of the three supreme gods in Hinduism. In the late Vedic period he was called Prajapati, the primeval man whose sacrifice ...

Worcestershire

(Encyclopedia)Worcestershire, county, 674 sq mi (1,746 sq km), W central England. Worcester is the county administrative center. Worcestershire is largely hilly country. The Malvern, Cotswold, Clent, and Lickey hil...

campanile

(Encyclopedia)campanile kămpənēˈlē, Ital. kämpänēˈlā [key], Italian form of bell tower, constructed chiefly during the Middle Ages. Built in connection with a church or a town hall, it served as a belfry ...

Bond, Julian

(Encyclopedia)Bond, Julian (Horace Julian Bond), 1940–2015, U.S. civil-rights leader, b. Nashville, Tenn. As a student at Morehouse College, he participated in sit-ins at segregated Atlanta restaurants. He was a ...

Sequoia National Park

(Encyclopedia)Sequoia National Park, 402,510 acres (162,960 hectares), E central Calif.; est. 1890. In the park are 35 groves of giant sequoias, spectacular granite mountains, and deep canyons. The General Sherman ...

Chinook, indigenous people of North America

(Encyclopedia)Chinook shĭno͝okˈ, chĭ– [key], Native American tribe of the Penutian linguistic stock. Altogether twelve main tribes spoke Chinook languages; all were in the Columbia River valley. The Chinook t...

Chang Tso-lin

(Encyclopedia)Chang Tso-lin jäng tsōˈ-lĭnˈ [key], 1873–1928, Chinese general. Chang was of humble birth. As the leader of a unit of Manchurian militia he assisted (1904–5) the Japanese in the Russo-Japanes...

quaternion

(Encyclopedia)quaternion kwətûrˈnēən [key], in mathematics, a type of higher complex number first suggested by Sir William R. Hamilton in 1843. A complex number is a number of the form a+bi when a and b are re...