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Pliny the Elder

(Encyclopedia)Pliny the Elder (Caius Plinius Secundus) plĭˈnē [key], c.a.d. 23–a.d. 79, Roman naturalist, b. Cisalpine Gaul. He was a friend and fellow military officer of Vespasian, becoming eventually an arm...

Locke, John

(Encyclopedia)Locke, John lŏk [key], 1632–1704, English philosopher, founder of British empiricism. Locke summed up the Enlightenment in his belief in the middle class and its right to freedom of conscience and ...

Echegaray, José

(Encyclopedia)Echegaray, José hōsāˈ āchāgärīˈ [key], 1832–1916, Spanish dramatist, mathematician, physicist, economist, and politician. He taught science, practiced engineering, and devoted his later lif...

Engelmann, George

(Encyclopedia)Engelmann, George ĕngˈəlmən [key], 1809–84, American physician and botanist, b. Frankfurt-am-Main, Germany, educated at the universities of Heidelberg and Würzburg (M.D., 1831). Emigrating to A...

Ferguson, Adam

(Encyclopedia)Ferguson, Adam fûrˈgəsən [key], 1723–1816, Scottish philosopher and historian. He was professor of philosophy at the Univ. of Edinburgh (1759–85). His Essay on the History of Civil Society (17...

Ives, Frederic Eugene

(Encyclopedia)Ives, Frederic Eugene, 1856–1937, American inventor, b. Litchfield, Conn. A pioneer in the development of orthochromatic and trichromatic photography and of photoengraving, he followed an earlier su...

Haskins, Charles Homer

(Encyclopedia)Haskins, Charles Homer, 1870–1937, American historian, an authority on medieval history, b. Meadville, Pa. At Harvard (1902–31) he was professor and dean of graduate studies (1908–24); in the la...

Hopkins, Mark, American educator

(Encyclopedia)Hopkins, Mark, 1802–87, American educator, b. Stockbridge, Mass., grad. Williams, 1824, and Berkshire Medical School, 1829. After a few months of medical practice he returned (1830) to Williams as p...

Hägerstrom, Axel

(Encyclopedia)Hägerstrom, Axel äkˈsəl hägˈərstrôm [key], 1868–1939, Swedish philosopher. He was a student (1886–93) at Uppsala Univ. and taught there from 1893 until his retirement in 1933. The son of a...

Jevons, William Stanley

(Encyclopedia)Jevons, William Stanley jĕvˈənz [key], 1835–82, English economist and logician. After working in Australia as assayer to the mint, he taught at Owens College, Manchester, and University College, ...