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pH

(Encyclopedia)pH, range of numbers expressing the relative acidity or alkalinity of a solution. In general, pH values range from 0 to 14. The pH of a neutral solution, i.e., one which is neither acidic nor alkaline...

Compton, Karl Taylor

(Encyclopedia)Compton, Karl Taylor, 1887–1954, American physicist, b. Wooster, Ohio, grad. College of Wooster (Ph.B., 1908), Princeton (Ph.D., 1912); brother of A. H. Compton. He taught at Princeton from 1915 to ...

Wirt, William Albert

(Encyclopedia)Wirt, William Albert, 1874–1938, American educator, b. Markle, Ind., grad. DePauw Univ. (Ph.B., 1898; Ph.D., 1916). In 1907 he became superintendent of schools in Gary, Ind., where he developed a pl...

Wilson, Edmund Beecher

(Encyclopedia)Wilson, Edmund Beecher, 1856–1939, American zoologist, b. Geneva, Ill., grad. Yale (Ph.B., 1878), Johns Hopkins (Ph.D., 1881). He taught at Bryn Mawr (1885–91) and at Columbia (1891–1928), where...

Eggan, Fred Russell

(Encyclopedia)Eggan, Fred Russell ĕgˈgən [key], 1906–91, American anthropologist, b. Seattle, grad. Univ. of Chicago (Ph.B., 1927; A.M., 1928; Ph.D., 1933). A member of the faculty of the Univ. of Chicago from...

Adams, Robert McCormick, Jr.

(Encyclopedia)Adams, Robert McCormick, Jr., 1926–, American anthropologist, b. Chicago, Ill., grad. Univ. of Chicago (Ph.B., 1947; M.A., 1952; Ph.D., 1956). He served on the faculty of the Univ. of Chicago (1955�...

MacDiarmid, Alan Graham

(Encyclopedia)MacDiarmid, Alan Graham, 1927–2007, American chemist, b. Masterton, New Zealand, Ph.D. Univ. of Wisconsin, Madison, 1953, Ph.D. Cambridge, 1955. MacDiarmid was on the faculty at the Univ. of Pennsyl...

Aubert de Gaspé, Philippe

(Encyclopedia)Aubert de Gaspé, Philippe: see Gaspé, Philippe Aubert de. ...

Odum, Howard Washington

(Encyclopedia)Odum, Howard Washington ōˈdəm [key], 1884–1954, American sociologist, b. Bethlehem, Ga., grad. Emory College, 1904, Ph.D. Clark Univ., 1909, and Ph.D. Columbia, 1910. In 1920 he became professor ...

Herskovits, Melville Jean

(Encyclopedia)Herskovits, Melville Jean hûrsˈkəvĭts [key], 1895–1963, American anthropologist, b. Bellefontaine, Ohio; educated at the Univ. of Chicago (Ph.B., 1920) and Columbia (Ph.D., 1923). After teaching...