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will, in philosophy and psychology

(Encyclopedia)will, in philosophy and psychology, term used to describe that which is alleged to stimulate the motivation of purposeful activity. It is characteristic of the will that it can be observed only in one...

transit instrument

(Encyclopedia)transit instrument or transit, telescope devised to observe stars as they cross the meridian and used for determining time. Its viewing tube swings on a rigid horizontal axis restricting its movements...

trumpet

(Encyclopedia)trumpet, brass wind musical instrument of part cylindrical, part conical bore, in the shape of a flattened loop and having three piston valves to regulate the pitch. Its origin is ancient; records of ...

biological diversity

(Encyclopedia)biological diversity or biodiversity, the number of species in a given habitat. Scientists have variously estimated that there are from 3 to 30 million extant species, of which 2.5 million have been c...

Indian Affairs, Bureau of

(Encyclopedia)Indian Affairs, Bureau of, created (1824) in the U.S. War Dept. and transferred (1849) to the U.S. Dept. of the Interior. The War Dept. managed Native American affairs after 1789, but a separate burea...

Pullman

(Encyclopedia)Pullman. 1 Former town, since 1889 part of Chicago, Ill. It was founded in 1880 by George M. Pullman as a model community for workers of his sleeping-car company; all property was company owned, and a...

Veterans Affairs, United States Department of

(Encyclopedia)Veterans Affairs, United States Department of, federal executive department established to operate programs to benefit veterans and their families. The department was established in 1989; its predeces...

Henderson, Leon

(Encyclopedia)Henderson, Leon, 1895–1986, American economist, administrator of the Office of Price Administration (1941–42), b. Millville, N.J. An official of the Russell Sage Foundation (1925–34), Henderson ...

Health and Human Services, United States Department of

(Encyclopedia)Health and Human Services, United States Department of, federal executive department charged with administering government health programs. Successor to the Department of Health, Education, and Welfar...

Suitland

(Encyclopedia)Suitland, uninc. city (1990 pop. 35,400 including Silver Hill), Prince Georges co., central Md., a suburb of Washington, D.C. The Suitland Federal Center houses offices of the U.S. Census Bureau, Nati...