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Perrin, Jean Baptiste

(Encyclopedia)Perrin, Jean Baptiste zhäN bätēstˈ pĕrăNˈ [key], 1870–1942, French physicist. From 1910 to 1940 he was professor at the Univ. of Paris, and in 1941 he came to the United States. Perrin specia...

Riesener, Jean Henri

(Encyclopedia)Riesener, Jean Henri zhäN äNrēˈ rēzənĕrˈ [key], 1734–1806, French cabinetmaker, one of the major artists who made important contributions to the formation of the Louis XVI style in France. B...

Harvard College Observatory

(Encyclopedia)Harvard College Observatory, astronomical observatory located in Cambridge, Mass., operated by Harvard (Harvard College at the time of the observatory's founding in 1839). Its equipment includes a 61-...

Duvergier de Hauranne, Jean

(Encyclopedia)Duvergier de Hauranne, Jean zhäN düvĕrzhyāˈ də ōränˈ [key], 1581–1643, French theologian. He is often called the Abbé de Saint-Cyran from an abbacy he held in commendam (i.e., received the...

Delambre, Jean Baptiste Joseph

(Encyclopedia)Delambre, Jean Baptiste Joseph zhäN bätēstˈ zhôzĕfˈ dəläNˈbrə [key], 1749–1822, French astronomer and mathematician. He was a member of the bureau of longitudes from 1795 and professor at...

De Smet, Pierre Jean

(Encyclopedia)De Smet, Pierre Jean pyĕr zhäN də smĕtˈ [key], 1801–73, Jesuit missionary in the U.S. Pacific Northwest, b. Belgium. He emigrated to the United States in 1821, served his novitiate in Florissan...

Detaille, Jean Baptiste Édouard

(Encyclopedia)Detaille, Jean Baptiste Édouard zhäN bäptēstˈ ādwärˈ dətäyˈ [key], 1848–1912, French painter. He studied under J. L. E. Meissonier and served in the Franco-Russian war. From this backgrou...

Dumas, Jean Baptiste André

(Encyclopedia)Dumas, Jean Baptiste André dümäˈ [key], 1800–1884, French organic chemist. He was distinguished for his researches on atomic weights, esters, vapor densities, the oxidation products of alcohols...

Dunois, Jean, comte de

(Encyclopedia)Dunois, Jean, comte de zhäN kôNt də dünwäˈ [key], c.1403–1468, French general, called the Bastard of Orléans; natural son of Louis, duc d'Orléans. He joined the Armagnacs in the civil war du...

Daubenton, Louis Jean Marie

(Encyclopedia)Daubenton, Louis Jean Marie lwē zhäN märēˈ dōbäNtôNˈ [key], 1716–1800, French naturalist. He was a professor at the Collège de France from 1778; his work touched many fields—comparative ...