Columbia Encyclopedia

(Encyclopedia) Slave, river, c.310 mi (500 km) long, Northwest Territories, Canada. It comprises the middle sections of the Mackenzie River system. The river channels the waters of Lake Athabasca and the Peace River...

(Encyclopedia) Bassett, John Spencer, 1867–1928, American historian, b. Tarboro, N.C. He was professor of history at Trinity College (now Duke Univ.) from 1893 to 1906 and then at Smith from 1906 to 1928. Bassett ...

(Encyclopedia) Richet, Charles Robert shärl rōbĕrˈ rēshāˈ [key], 1850–1935, French physiologist. From 1887 to 1927 he was professor at the Univ. of Paris. His special study was anaphylaxis, a term he used t...

(Encyclopedia) Robinson, Joseph Taylor, 1872–1937, U.S. legislator, b. Lonoke co., Ark. He was admitted (1895) to the bar and served (1903–13) in the U.S. House of Representatives. In 1913 he became governor of ...

(Encyclopedia) Stark, Freya Madeline frāˈə [key], 1893–1993, British author, traveler, and Arabist. The first European to visit several areas in the Middle East, she was born in Paris to artist parents and grew...

(Encyclopedia) Duse, Eleonora do͞oˈzə, Ital. ālāōnôˈrä do͞oˈzā [key], 1859–1924, Italian actress. From a theatrical family, she made a successful appearance at 14 as Juliet and in 1879 gained recogniti...

(Encyclopedia) Chaban-Delmas, Jacques zhäk shäbäNˈ-dĕlmäˈ [key], 1915–2000, French political leader, born Jacques Delmas. He joined (1940) the resistance, using the nom de guerre “Chaban,” which he late...

(Encyclopedia) rocket, in botany, popular name for several plants of the family Cruciferae (or Brassicaceae; mustard family). The dame's, or damask, violet, damewort, or sweet rocket is Hesperis matronalis, a hardy,...

(Encyclopedia) Saumur sōmürˈ [key], town (1990 pop. 30,150), Maine-et-Loire dept., W France, on the Loire River. Saumur is noted for its religious-medal industry (dating from the 17th cent.) and for its sparkling...

(Encyclopedia) logic, the systematic study of valid inference. A distinction is drawn between logical validity and truth. Validity merely refers to formal properties of the process of inference. Thus, a conclusion w...