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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 ...

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...

Moro, Aldo

(Encyclopedia)Moro, Aldo älˈdō môˈrō [key], 1916–78, Italian political leader. A lawyer, he entered national politics in 1946, when he was elected to the constituent assembly as a member of the Christian De...

O'Connor, Basil

(Encyclopedia)O'Connor, Basil (Daniel Basil O'Connor), 1892–1972, American lawyer and philanthropic official, b. Taunton, Mass., grad. Harvard Law School, 1915. He practiced law in New York and Boston, entering i...

O'Donnell, Hugh Roe

(Encyclopedia)O'Donnell, Hugh Roe, 1571?–1602, Irish chieftain and ruler of Tyrconnel (modern Donegal), known as Red Hugh. His father tended to favor the English, who left him free to continue the traditional O'D...

McDougall, William, Canadian statesman

(Encyclopedia)McDougall, William, 1822–1905, Canadian leader in the movement for Canadian confederation, b. Ontario. He was elected (1858) to the Legislative Assembly, and in 1864 he entered the “great coalitio...

litmus

(Encyclopedia)litmus, organic dye usually used in the laboratory as an indicator of acidity or alkalinity (see acids and bases). Naturally pink in color, it turns blue in alkali solutions and red in acids. Commonly...

logwood

(Encyclopedia)logwood, small, thorny tree (Haematoxylon campechianum) of the family Leguminosae (pulse family) native to tropical America and introduced into other tropical regions. The brown-red heartwood is the s...