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Li Tzu-cheng

(Encyclopedia)Li Tzu-cheng lē dzo͞o-chŭng [key], 1605–45, Chinese rebel leader who contributed to the fall of the Ming dynasty. With the help of scholars he organized a government in S Shanxi prov., proclaimed...

phylloxera

(Encyclopedia)phylloxera fĭlŏkˈsĭrə [key], small, sap-eating, greenish insect of the genus Phylloxera, closely related to the aphid. Phylloxeras feed on leaves and roots, and many species produce galls on deci...

Tagus

(Encyclopedia)Tagus tāˈgəs [key], Span. Tajo, Port. Tejo, river, c.585 mi (940 km) long, rising in the mountains E of Madrid, E Spain, and draining the central part of the Iberian Peninsula. The Tagus flows nort...

The Dalles

(Encyclopedia)The Dalles dălz [key], city (1990 pop. 11,060), seat of Wasco co., N Oreg., on the Columbia River; inc. 1857. It is a busy inland port; ships passing through the locks at Bonneville Dam (c.50 mi/80 k...

Bonneville, Benjamin Louis Eulalie de

(Encyclopedia)Bonneville, Benjamin Louis Eulalie de bŏnˈvĭl [key], 1796–1878, American army officer and trader who blazed portions of the Oregon Trail, b. France, grad. West Point, 1815. Acquainted with the fu...

Salonica campaigns

(Encyclopedia)Salonica campaigns. In the summer of 1915, Bulgaria entered World War I on the side of the Central Powers; in September, Bulgaria attacked Serbia. An Allied expeditionary force that landed at Salonica...

gall bladder

(Encyclopedia)CE5 Gall bladder gall bladder, small pear-shaped sac that stores and concentrates bile. It is connected to the liver (which produces the bile) by the hepatic duct. When food containing fat reaches...

mass spectrograph

(Encyclopedia)mass spectrograph, device used to separate electrically charged particles according to their masses; a form of the instrument known as a mass spectrometer is often used to measure the masses of isotop...

Bozeman, John M.

(Encyclopedia)Bozeman, John M. bōzˈmən [key], 1835–67, American pioneer. A Georgian, he went to the gold fields of Colorado (1861) and Montana (1862). In the winter of 1862–63 he traveled with a companion fr...

Smith, Jedediah Strong

(Encyclopedia)Smith, Jedediah Strong, 1799–1831, American explorer, one of the greatest of the mountain men, b. near Binghamton, N.Y. Early in 1824, Smith took a party through South Pass, beginning the regular us...