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Perry, Ralph Barton

(Encyclopedia)Perry, Ralph Barton, 1876–1957, American realist philosopher, b. Poultney, Vt., grad. Princeton (B.A., 1896) and Harvard (Ph.D., 1899). He taught at Harvard from 1902, becoming professor of philosop...

Benbow, William

(Encyclopedia)Benbow, William, fl. 1825–40, English pamphleteer and publisher. He is known especially as the author (c.1832) of the Grand National Holiday; or, Congress of the Productive Classes, which introduced...

Cantor, Georg

(Encyclopedia)Cantor, Georg gāˈôrkh känˈtôr [key], 1845–1918, German mathematician, b. St. Petersburg. He studied under Karl Weierstrass and taught (1869–1913) at the Univ. of Halle. He is known for his w...

Berthollet, Claude Louis, Comte

(Encyclopedia)Berthollet, Claude Louis, Comte klōd lwē, kôNt bĕrtōlāˈ [key], 1748–1822, French chemist. His contributions to chemistry include the analysis of ammonia and prussic acid and the discovery of ...

Bosanquet, Bernard

(Encyclopedia)Bosanquet, Bernard bōˈzənkĭt [key], 1848–1923, English philosopher, educated at Oxford. He lectured there (1871–81) and at St. Andrews (1903–8). His major works include A History of Aestheti...

Mondrian, Piet

(Encyclopedia)Mondrian, Piet pēt mônˈdrēän [key], 1872–1944, Dutch painter. He studied at the academy in Amsterdam and passed through an early naturalistic phase. In 1910 he went to Paris, where the influenc...

Kropotkin, Piotr Alekseyevich, Prince

(Encyclopedia)Kropotkin, Piotr Alekseyevich, Prince pyôˈtər əlyĭksyāˈĭvĭch krəpôtˈkĭn [key], 1842–1921, Russian geographer and anarchist. He came from a wealthy princely family and as a boy was a pag...

Thomson, Sir Joseph John

(Encyclopedia)Thomson, Sir Joseph John, 1856–1940, English physicist. From 1884 to 1919 he was Cavendish professor of experimental physics at Cambridge. J. J. Thomson was one of the founders of modern physics. Wi...

cognitive psychology

(Encyclopedia)cognitive psychology, school of psychology that examines internal mental processes such as problem solving, memory, and language. It had its foundations in the Gestalt psychology of Max Wertheimer, Wo...

Veblen, Thorstein

(Encyclopedia)Veblen, Thorstein thôrˈstīn vĕbˈlən [key], 1857–1929, American economist and social critic, b. Cato Township, Wis. Of Norwegian parentage, he spent his first 17 years in Norwegian-American far...