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District of Columbia
(Encyclopedia)District of Columbia, federal district (2020 pop. 689,545), 69 sq mi (179 sq km), on the east bank of the Potomac River, coextensive with the city of Wa...Clark, Alvan
(Encyclopedia)Clark, Alvan, 1804–87, American astronomer and maker of astronomical lenses, b. Ashfield, Mass. In 1846 the firm of Alvan Clark & Sons was established at Cambridgeport, Mass.; it became famous a...Bagot, Sir Charles
(Encyclopedia)Bagot, Sir Charles băgˈət [key], 1781–1843, British diplomat. As minister to the United States (1815–20) he negotiated the Rush-Bagot Convention, which limited armaments along the U.S.-Canadian...Turner Valley
(Encyclopedia)Turner Valley, village (1991 pop. 1,352), SW Alta., Canada, at the foot of the Rocky Mts., on the Sheep River, SW of Calgary. It is in the center of the Turner Valley oil and natural gas fields, opene...rattlesnake
(Encyclopedia)rattlesnake, poisonous New World snake of the pit viper family, distinguished by a rattle at the end of the tail. The head is triangular, being widened at the base. The rattle is a series of dried, ho...Lièvre
(Encyclopedia)Lièvre lēāˈvrə [key], river, c.200 mi (320 km) long, rising in Kempt Lake, S Que., Canada, and flowing generally SW into the Ottawa River near Buckingham. Parts of it are navigable. There are fiv...talc
(Encyclopedia)talc, mineral ranging in color from white through various shades of gray and green to the red and brown of impure specimens, translucent to opaque, and having a greasy, soapy feel. It is a hydrous sil...mica
(Encyclopedia)mica mīˈkə [key], general term for a large group of minerals, hydrous silicates of aluminum and potassium, often containing magnesium, ferrous iron, ferric iron, sodium, and lithium and more rarely...Riel, Louis
(Encyclopedia)Riel, Louis lwē rēĕlˈ [key], 1844–85, Canadian insurgent, leader of two rebellions, b. Manitoba, of French and Métis parentage. In 1869–70 he led the rebels of the Red River settlements, main...Banff
(Encyclopedia)Banff bămf, bănf [key], town, SW Alta., Canada, in the Rocky Mts., on the Bow River and the ...Browse by Subject
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