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Ladd-Franklin, Christine

(Encyclopedia)Ladd-Franklin, Christine, 1847–1930, American scientist, b. Windsor, Conn., grad. Vassar 1869. She was the first woman student to enter Johns Hopkins (1878), her special studies being directed towar...

phrenology

(Encyclopedia)phrenology, study of the shape of the human skull in order to draw conclusions about particular character traits and mental faculties. The theory was developed about 1800 by the German physiologist Fr...

Myerson, Roger Bruce

(Encyclopedia)Myerson, Roger Bruce, 1951–, American economist, b. Boston, Mass., Ph.D. Harvard, 1976. He has taught at Northwestern Univ. (1976–2001) and the Univ. of Chicago (2001–). With Leonid Hurwicz and ...

Cattell, Raymond Bernard

(Encyclopedia)Cattell, Raymond Bernard kətĕlˈ [key], 1905–98, American psychologist, b. Staffordshire, England. He came to the United States in 1937 and served as research professor at the Univ. of Illinois (1...

Haldane, John Scott

(Encyclopedia)Haldane, John Scott, 1860–1936, British scientist, b. Edinburgh; father of John Burdon Sanderson Haldane. He made many important contributions to mine safety, investigating principally the action of...

Butlerov, Aleksandr Mikhailovich

(Encyclopedia)Butlerov, Aleksandr Mikhailovich əlyĭksänˈdər mēkhīlˈəvĭch bo͞otˈlyərôf [key], 1825–86, Russian chemist. As professor at the Univ. of Kazan he founded the first school of Russian chemi...

Wolff, Caspar Friedrich

(Encyclopedia)Wolff, Caspar Friedrich käsˈpär frēˈdrĭkh vôlf [key], 1733–94, German biologist, a founder of observational embryology. In his Theoria generationis (1759) he reintroduced the theory of epigen...

Orlon

(Encyclopedia)Orlon, trademark for an acrylic fiber available in filaments (long single strands) or staples (bundles of short fibers). Orlon is resistant to sunlight and atmospheric gases, which makes it ideal for ...

Hall, Marshall

(Encyclopedia)Hall, Marshall, 1790–1857, English physician and physiologist, M.D. Univ. of Edinburgh, 1812. He practiced medicine in Nottingham and in London. He opposed bloodletting and devised a method of artif...

intelligent design

(Encyclopedia)intelligent design, theory that some complex biological structures and other aspects of nature show evidence of having been designed by an intelligence. Such biological structures are said to have int...