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Chaptal, Jean Antoine

(Encyclopedia)Chaptal, Jean Antoine zhäN äNtwänˈ shäptälˈ [key], 1756–1832, French chemist, industrialist, and statesman. He became (1781) professor of chemistry at Montpellier, and during the Revolution h...

Charcot, Jean Baptiste

(Encyclopedia)Charcot, Jean Baptiste zhäN bätēstˈ shärkōˈ [key], 1867–1936, French neurologist and explorer in the antarctic region; son of Jean Martin Charcot. He became (1896) director of clinics at the ...

Charcot, Jean Martin

(Encyclopedia)Charcot, Jean Martin zhäN märtăNˈ shärkōˈ [key], 1825–93, French neurologist. At the Salpêtrière in Paris he developed the greatest clinic of his time for diseases of the nervous system. He...

Fabre, Jean Henri

(Encyclopedia)Fabre, Jean Henri zhäN äNrēˈ fäˈbrə [key], 1823–1915, French entomologist and author. He is known for his observations on insects and his study of their behavior. Fabre demonstrated the impor...

Sauvage, Jean-Pierre

(Encyclopedia)Sauvage, Jean-Pierre, 1944–, French chemist, Ph.D. Univ. of Strasbourg, 1971. He has spent his entire career as a researcher at the National Center for Scientific Research and a professor at the Uni...

Say, Jean Baptiste

(Encyclopedia)Say, Jean Baptiste zhäN bätēstˈ sā [key], 1767–1832, French economist. In A Treatise on Political Economy (1803, tr. from the 4th ed. 1821) he effectively reorganized and popularized the theori...

Barrault, Jean-Louis

(Encyclopedia)Barrault, Jean-Louis zhäN-lwē bärōˈ [key], 1910–94, French actor and director. A pupil of Charles Dullin, he joined the Comédie Française in 1940. After World War II he organized his own comp...

Bailly, Jean Sylvain

(Encyclopedia)Bailly, Jean Sylvain zhäN sēlvăNˈ bäyēˈ [key], 1736–93, French astronomer and politician. His works on astronomy and on the history of science (notably the Essai sur la théorie des satellite...

Poncelet, Jean Victor

(Encyclopedia)Poncelet, Jean Victor zhäNˈ vēktôrˈ pôNslāˈ [key], 1788–1867, French mathematician and army engineer. He taught at the school of mechanics at Metz and at the Faculté des Sciences and the É...

Bagaza, Jean-Baptiste

(Encyclopedia)Bagaza, Jean-Baptiste zhäN-bätēstˈ bägäzäˈ [key], 1946–2016, Burundian army officer and political leader. An ethnic Tutsi, he was educated at Belgian military schools, rose through the ranks...