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Food and Drug Administration

(Encyclopedia)Food and Drug Administration (FDA), agency of the Public Health Service division of the U.S. Department of Health and Human Services. It is charged with protecting public health by ensuring that foods...

recycling

(Encyclopedia)recycling, the process of recovering and reusing waste products—from household use, manufacturing, agriculture, and business—and thereby reducing their burden on the environment. During World War ...

Rob Roy

(Encyclopedia)Rob Roy [Scottish Gaelic,=red Rob], 1671–1734, Scottish freebooter, whose real name was Robert MacGregor. He is remembered chiefly as he figures in Sir Walter Scott's novel Rob Roy (1818). Deprived ...

Watauga Association

(Encyclopedia)Watauga Association, government (1772–75) formed by settlers along the Watauga River in present E Tennessee. Virginians made the first settlements in 1769, and after the collapse of the Regulator mo...

Sierra Club

(Encyclopedia)Sierra Club, national organization in the United States dedicated to the preservation and expansion of the world's parks, wildlife, and wilderness areas. Founded (1892) in California by a group led by...

Coos Bay

(Encyclopedia)Coos Bay ko͞os [key], city (2020 pop. 15,985), Coos co., SW Oreg., a port of entry on Coos B...

cline

(Encyclopedia)cline, in biology, any gradual change in a particular characteristic of a population of organisms from one end of the geographical range of the population to the other. Gradients of characteristics us...

amalgamation process

(Encyclopedia)amalgamation process əmălˌgəmāˈshən [key], in particular, a method to extract gold and silver from ores. The ore is crushed and treated with mercury, in which the metal dissolves. The amalgam i...

Montana, University of

(Encyclopedia)Montana, University of, at Missoula; state supported; coeducational; chartered 1893 as the Univ. of Montana. In 1913 when the Montana Univ. System was established, the school's name was changed to Sta...

Leopold, Aldo

(Encyclopedia)Leopold, Aldo, 1886–1948, American ecologist, b. Burlington, Iowa. He was an advocate for a “land ethic,” in which humans see themselves as part of a natural community. After work in the U.S. Fo...