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Manning, Patrick Augustus Mervyn

(Encyclopedia) Manning, Patrick Augustus Mervyn, 1946–2016, Trinidadian political leader, prime minister of Trinidad and Tobago (1991–95, 2001–10). He entered politics in the 1960s while studying…

petrology

(Encyclopedia) petrology, branch of geology specifically concerned with the origin, composition, structure, and properties of rocks, primarily igneous and metamorphic, and secondarily sedimentary. It…

horizon

(Encyclopedia) horizon, in astronomy, roughly circular line bounding an observer's view of the surface of the earth where the sky and earth seem to meet. This is the visible horizon. At sea the…

Velasco, José María

(Encyclopedia) Velasco, José MaríaVelasco, José Maríahōsāˈ märēˈä vāläsˈkō [key], 1840–1912, Mexican landscape painter; teacher of Diego Rivera. A gifted artisan descended from a family of shawl…

Agassiz, Louis

(Encyclopedia) Agassiz, Louis (Jean Louis Rodolphe Agassiz)Agassiz, LouiszhäN lwē rôdôlfˈ [key] Agassiz, Louisăgˈəsē [key], 1807–73, Swiss-American zoologist and geologist, b. Môtiers-en-Vuly,…

Cotonou

(Encyclopedia) Cotonou Cotonou kōtōn&oomacr;ˈ [key], city, capital of Atlantique prov., S Benin, on the Gulf of…

prospecting

(Encyclopedia) prospecting, search for mineral deposits suitable for mining. Modern prospecting has replaced earlier methods based on chance or superstition (e.g., use of the divining rod) with…

Ewing, William Maurice

(Encyclopedia) Ewing, William Maurice, 1906–74, American oceanographer and geologist, b. Lackney, Tex., grad. Rice Institute, now Rice Univ. (B.S., 1926; M.A., 1927; Ph.D., 1931). He taught physics…

McPhee, John Angus

(Encyclopedia) McPhee, John Angus, 1931–, American journalist and nonfiction writer, b. Princeton, N.J., A.B. Princeton, 1953. He was an editor at Time magazine (1957–64) before becoming (1965) a…