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Hart, H. L. A.

(Encyclopedia)Hart, H. L. A. (Herbert Lionel Adolphus Hart), 1907–92, British legal philosopher. A lawyer and trained philosopher—he was a legal positivist—Hart subjected legal concepts to scrutiny in such wo...

Barton, Derek H. R.

(Encyclopedia)Barton, Derek H. R., 1918–98, British chemist, b. Gravesend, England, grad. Imperial College of Science and Technology (B.S. 1940, Ph.D. 1942, D.Sc. 1949). He was on the faculty of Imperial College ...

O'Sullivan, Timothy H.

(Encyclopedia)O'Sullivan, Timothy H., c.1840–1882, American pioneer photographer, b. New York City. O'Sullivan worked in Matthew Brady's first New York gallery and on the battlefronts of the Civil War. He made ph...

Bradley, Francis Herbert

(Encyclopedia)Bradley, Francis Herbert, 1846–1924, English philosopher. He was educated at Oxford, where he became a fellow of Merton College in 1876. His works include Ethical Studies (1876), Principles of Logic...

Day, Thomas

(Encyclopedia)Day, Thomas, 1748–89, English social reformer and author. He supported the American Revolution and the abolition of slavery and was interested in improving the lot of the small farmer. His moralisti...

anomie

(Encyclopedia)anomie, a social condition characterized by instability, the breakdown of social norms, institutional disorganization, and a divorce between socially valid goals and available means for achieving them...

hedging

(Encyclopedia)hedging, in commerce, method by which traders use two counterbalancing investment strategies so as to minimize any losses caused by price fluctuations. It is generally used by traders on the commoditi...

sociology

(Encyclopedia)sociology, scientific study of human social behavior. As the study of humans in their collective aspect, sociology is concerned with all group activities—economic, social, political, and religious. ...

Marsh, Reginald

(Encyclopedia)Marsh, Reginald, 1898–1954, American painter and illustrator, b. Paris. Both his parents were artists. After their return to the United States, he studied at Yale (B.A., 1920). He worked as an illus...

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