Columbia Encyclopedia

(Encyclopedia) turquoise, hydrous phosphate of aluminum and copper, Al2(OH)3PO4·H2O+Cu, used as a gem. It occurs rarely in crystal form, but is usually cryptocrystalline. Turquoise is opaque and has a waxy luster; ...

(Encyclopedia) Prescott, Edward Christian, 1940–, American economist, b. Glen Falls, N.Y., Ph.D. Carnegie Mellon Univ., 1967. Prescott has taught at Carnegie Mellon (1971–80), the Univ. of Minnesota (1980–98, ...

(Encyclopedia) Gadsden Purchase gădzˈdən [key], strip of land purchased (1853) by the United States from Mexico. The Treaty of Guadalupe Hidalgo (1848) had described the U.S.-Mexico boundary vaguely, and Presiden...

(Encyclopedia) Conway of Allington, William Martin Conway, 1st Baron, 1856–1937, English explorer, art historian, and writer. Conway filled several university positions and in 1918–31 represented the combined En...

(Encyclopedia) Gilman, Daniel Coit, 1831–1908, American educator, first president of Johns Hopkins Univ., b. Norwich, Conn., grad. Yale, 1852. After serving as attaché (1853–55) of the American legation at St. ...

(Encyclopedia) La Farge, Oliver lä färzh [key], 1901–63, American writer and anthropologist, b. New York City, grad. Harvard (B.A., 1924; M.A., 1929). He conducted three archaeological expeditions to Arizona and...

(Encyclopedia)  CE5 Geodesic dome geodesic dome jēˌədĕsˈĭk, –dēˈsĭk [key], structure that roughly approximates a hemisphere. Popular in recent years as economical, easily erected buildings, geodesic do...

(Encyclopedia) Mills, Charles W., 1951–2021, philosopher and political theorist, b. London, Ph.D. University of Toronto, 1985. Born in the U.K. and raised in Jamaica...

(Encyclopedia) Pembroke, William Herbert, 3d earl of, 1580–1630, English courtier and patron of letters. Son of Mary Herbert, countess of Pembroke, and nephew of Sir Philip Sidney, he was tutored by the poet Samue...

(Encyclopedia) William, (William Arthur Philip Louis), 1982–, Prince of Wales of Great Britian, eldest son of King Charles III and Diana ...