Columbia Encyclopedia

(Encyclopedia) Coptos kŏpˈtəs [key], ancient city of Egypt, on the right bank of the Nile, c.27 mi (43 km) N of modern Luxor. Remains of the Temple of Min, patron god of Coptos, have been found there as well as r...

(Encyclopedia) corns and calluses, thickenings of the outer layer of skin where there is irritation or constant pressure. Corns are cone-shaped with their points protruding into the dermis, or inner layer of skin. T...

(Encyclopedia) Flaming Gorge Dam, in a deep canyon of the Green River, NE Utah; built 1958–63 by the U.S. Bureau of Reclamation as a major unit in the Colorado River storage project. The dam regulates the flow of ...

(Encyclopedia) fluorite flo͞oˈərspär [key], mineral appearing in various colors, e.g., green, yellow-brown, rose, and red. Chemically, it is calcium fluoride, CaF2. Its crystals, commonly cubic, are transparent ...

(Encyclopedia) Helpmann, Sir Robert, 1909–1986, Australian dancer and choreographer. He danced as a principal (1933–50) with Sadler's Wells Ballet (now the Royal Ballet), often partnering with Margot Fonteyn. Hi...

(Encyclopedia) Herbert, Victor, 1859–1924, Irish-American cellist, composer, and conductor, studied at the Stuttgart Conservatory. In 1886 the Metropolitan Opera Company engaged his wife, Therese Herbert-Föster, ...

(Encyclopedia) Hercules hûrˈkyəlēzˌ [key], in astronomy, northern constellation located between Lyra and Corona Borealis. It is traditionally depicted as the hero Hercules in a kneeling position. There are no v...

(Encyclopedia) Shorthorn cattle, breed of beef cattle developed from the native cattle of the Tees valley in NE England; formerly called Durham cattle. Systematic breeding of Shorthorns began in the latter part of t...

(Encyclopedia) zinnia, any species of the genus Zinnia of the family Asteraceae (aster family), native chiefly to Mexico, though some range as far north as Colorado and as far south as Guatemala. The common zinnia o...

(Encyclopedia) bauxite bôkˈsīt, bŏkˈ– [key], mixture of hydrated aluminum oxides usually containing oxides of iron and silicon in varying quantities. A noncrystalline substance formerly thought to be a minera...