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Natchitoches

(Encyclopedia)Natchitoches nakˈətäsh [key], city (1990 pop. 16,609), seat of Natchitoches parish, NW La.; inc. 1819. Its industry is centered on the production, processing, and shipping of lumber and farm produc...

Helpmann, Sir Robert

(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...

Herbert, Victor

(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, ...

Hercules, in astronomy

(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...

gingivitis

(Encyclopedia)gingivitis jĭnˌjəvīˈtĭs [key], inflammation of the gums. It may be acute, subacute, chronic, or recurrent. The gums usually become red, swollen, and spongy, and bleed easily. Chronic gingivitis ...

Geneva Conventions

(Encyclopedia)Geneva Conventions, series of treaties signed (1864–1949) in Geneva, Switzerland, providing for humane treatment of combatants and civilians in wartime. The first convention, signed by 16 nations, c...

Flaming Gorge Dam

(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 ...

fluorite

(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 ...

hue and cry

(Encyclopedia)hue and cry, formerly, in English law, pursuit of a criminal immediately after he had committed a felony. Whoever witnessed or discovered the crime was required to raise the hue and cry against the pe...

International Union for the Conservation of Nature and Natural Resources

(Encyclopedia)International Union for the Conservation of Nature and Natural Resources (IUCN), formerly World Conservation Union, international organization founded in 1948 to encourage the preservation of wildlife...