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Smith, Theobald

(Encyclopedia)Smith, Theobald, 1859–1934, American pathologist, b. Albany, N.Y., M.D. Albany Medical College, 1883. He was professor of bacteriology at Columbian (now George Washington) Univ. (1886–95) and of c...

Quivira

(Encyclopedia)Quivira kēvēˈrä [key], land sought and reached by Francisco Vásquez de Coronado in 1541 and explored by later Spanish expeditions (1593 and 1601). The records do not make it entirely clear exactl...

Cortina, Juan Nepomuceno

(Encyclopedia)Cortina, Juan Nepomuceno, 1824–94, Mexican military leader and politician. Born into a wealthy cattle-ranching family that moved to the Rio Grande Valley, Cortina joined the Mexican army in 1846 and...

tortoise

(Encyclopedia)tortoise tôrˈtəs [key], common name for a terrestrial turtle, especially one of the family Testudinidae. Tortoises inhabit warm regions of all continents except Australia. They have club-shaped fee...

Johnson, Lyndon Baines

(Encyclopedia)Johnson, Lyndon Baines, 1908–73, 36th President of the United States (1963–69), b. near Stonewall, Tex. Johnson lost the 1960 Democratic presidential nomination to John F. Kennedy, but accepte...

nonlinear dynamics

(Encyclopedia)nonlinear dynamics, study of systems governed by equations in which a small change in one variable can induce a large systematic change; the discipline is more popularly known as chaos (see chaos theo...

Knight, Frank Hyneman

(Encyclopedia)Knight, Frank Hyneman, 1885–1972, American economist, b. McLean County, Ill., Ph.D. Cornell, 1916. He taught economics at the Univ. of Chicago (1927–62). Knight's most influential work was his fir...

Edinburg

(Encyclopedia)Edinburg ĕdˈənbûrgˌ [key], city (2020 pop. 100,243), seat of Hidalgo co., extreme S Tex.; inc. ...

escarpment

(Encyclopedia)escarpment or scarp, long cliff, bluff, or steep slope, caused usually by geologic faulting (see fault) or by erosion of tilted rock layers. An example of a fault scarp is the north face of the San Ja...

Odessa, city, United States

(Encyclopedia)Odessa ōdĕsˈə [key], city (1990 pop. 89,699), seat of Ector co., W Tex.; founded 1881, inc. 1927. Great oil deposits just to the south changed Odessa from a small ranch town into a large and growi...