THE FIFTEEN CHEMISTS 



WHOSE EXPERIMENTAL DETERMINATIONS PERMIT THE 



ESTABLISHMENT OF THE ABSOLUTE ATOMIC 



WEIGHTS GIVEN IN PART FOURTH. 



ROSE, HEINRICH. Born August 6, 1795; died January 27, 

 1864, at Berlin, GERMANY. Worked in the laboratory of 

 Berzelius. Professor of Chemistry, University of Berlin. 



TITANIUM, 270-271. 



SCHROTTER, ANTON RITTER VON. Born November 26, 

 1802; died April 15, 1875, at Vienna, AUSTRIA. Professor of 

 Chemistry, University of Vienna. 



PHOSPHORUS, 262-263. 



EBELMEN, JACQUES-JOSEPH. Born at Beaume-les-Dames, 

 July 10, 1814; died March 31, 1852, at Paris, FRANCE. Pro- 

 fessor of Chemistry, Ecole des Mines, Director of the 

 Porcelain Works at Sevres. 



URANIUM, 271-272. 



ERDMANN, AXEL JOAKIM. Born August 12, 1814; died 

 December i, 1869, at Stockholm, SWEDEN. Worked in the 

 laboratory of Berzelius; later State Geologist of Sweden. 



ZINC, 276-278. 



MARIGNAC, JEAN CHARLES, GALISSARD DE. Born April 

 24, 1817; died April 15, 1894, at Geneva, SWITZERLAND. 

 Student of Liebig and Dumas. Professor of Chemistry and 

 Mineralogy at Geneva Academy and University. When, in 

 old age, unable to go to the University, he kept at work in 

 his own laboratory in his own house. 



BROMINE, 238. IODINE, 258. Also : Pb, 89. Ag, 90. 



N, 163, 188-189, 192. 



MAUMENE, EDME JULES. Born November 18, 1818. Pro- 

 fessor of Chemistry, Institute Catholique, Lyons, FRANCE. 



SILVER, 221-225. Also: Ag, 53. Fe, 93. 

 HAUER, KARL, RITTER VON. Born March 3, 1819; died 

 August 2, 1880, at Vienna, AUSTRIA. Chemist o^ the 

 Reichsanshalt since 1855. 

 CADMIUM, 239-240. 



