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Fifty-four forty or fight

(Encyclopedia)Fifty-four forty or fight, in U.S. history, phrase commonly used by extremists in the controversy with Great Britain over the Oregon country. The rights of the United States, they maintained, extended...

Held, Julius Samuel

(Encyclopedia)Held, Julius Samuel, 1905–2002, American art historian, b. Germany. Held immigrated to the United States in 1934. In 1937 he began to teach at Barnard College, where he was professor of art history ...

Noguchi, Yone

(Encyclopedia)Noguchi, Yone (Yonejiro Noguchi) yōˈnā nōgo͞oˈchē, yōˌnājīrōˈ [key], Japanese poet and critic of Japanese art and poetry. Noguchi traveled and lectured in the United States and England, a...

siderite

(Encyclopedia)siderite kălˈĭbīt [key], a mineral, varying in color from brown, green, or gray to black and occurring in nature in massive and crystalline form. A carbonate of iron, FeCO3, it serves as an iron o...

labor, in economics

(Encyclopedia)labor, term used both for the effort of performing a task and for the workers engaged in the activity. In ancient times much of the work was done by slaves (see slavery). In the feudal period agricult...

Huxley, Sir Julian Sorell

(Encyclopedia)Huxley, Sir Julian Sorell, 1887–1975, English biologist and writer, educated at Oxford; grandson of Thomas Henry Huxley, brother of Aldous Huxley, and half-brother of Sir Andrew Huxley. He taught at...

acid rain

(Encyclopedia)acid rain or acid deposition, form of precipitation (rain, snow, sleet, or hail) containing high levels of sulfuric or nitric acids (pH below 5.5–5.6). Produced when sulfur dioxide and various nitro...

Fushun

(Encyclopedia)Fushun fo͞oˈsho͞onˈ [key], city, NE Liaoning prov., China, in a highly industrialized area. It ...

Chávez Frías, Hugo Rafael

(Encyclopedia)Chávez Frías, Hugo Rafael o͞oˈgō räfäĕlˈ chäˈvĕs frēˈäs [key], 1954–2013, Venezuelan political leader, president of Venezuela (1999–2013). Raised in poverty, he was educated at the ...

classical swine fever

(Encyclopedia)classical swine fever or hog cholera, acute, highly infectious viral disease of swine, historically perhaps the most serious disease of swine in North America. It is characterized by dullness and list...