KEY AND INDEX 



in radio-activity. In conjunction with his wife 

 he discovered radium. The discovery was sug 

 gested by the fact that the Becquerel rays were 

 analogous to the Rontgen rays, and that pitch- 

 blende possessed a high degree of radio-activity. 

 By careful analysis M. and Mme. Curie extracted 

 minute quantities of radium bromide in 1903, 

 which feat seems likely to lead to extraordinary 

 results in physics. 



Curie, Madame Skaldowska, v, 100. Born at 

 Warsaw, 1867. French scientist. Professor in 

 the Faculty of Sciences, Paris. Wife of Prof. 

 Pierre Curie, and associated with him in his re- 

 searches. 



Cuvier, Georges Baron de, iv, 159. Born at 

 Montbeliard, France, 1769; died at Paris, 1832. 

 French naturalist. Educated at Stuttgart for 

 the Calvinistic ministry, in which faith he was 

 strictly brought up. His great bent for natural 

 history caused his father to abandon the plans 

 for his future. Went to Paris and became Pro- 

 fessor of Natural History successively at the 

 Museum of Natural History, Ecole Centrale des 

 Pantheon and College de France. 1802, suc- 

 ceeded Mertrud at the Jardin des Plantes. De- 

 voted his life to paleontology, systematic zo- 

 ology, and comparative anatomy, of which last 

 science he was the founder. 



Daguerre, Louis J. M., iv, 70. Born at Cor- 

 meilles, France, 1789; died near Paris, 1851. 

 French physicist and painter. Began life as 

 scene painter and evolved the Diorama. To- 

 gether with Nicephore de Niepce in 1829, he 

 began investigations in photography, and de- 

 vised the means of photographing on a metallic 

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