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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 ...

Corot, Jean-Baptiste Camille

(Encyclopedia)Corot, Jean-Baptiste Camille zhäN-bätēstˈ kämēˈyə kôrōˈ [key], 1796–1875, French landscape painter, b. Paris. Corot was one of the most influential of 19th-century painters. The son of sh...

Chardin, Jean-Baptiste-Siméon

(Encyclopedia)Chardin, Jean-Baptiste-Siméon zhäN-bätēstˈ-sēmāôNˈ shärdăNˈ [key], 1699–1779, French painter. He was a major figure of 18th-century painting. While the Académie royale still advocated h...

Foucault, Jean Bernard Léon

(Encyclopedia)Foucault, Jean Bernard Léon zhäN bĕrnärˈ lāôNˈ fo͞okōˈ [key], 1819–68, French physicist. Known especially for his research on the speed of light, he determined its velocity in air and fou...

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