Am.  jour.  Pharm.j    Romance  of  Chemical  Elements. 
August,  1918.    J  J 
579 
Table  8. — Continued. 
Year. 
JJame. 
Discoverer. 
Source. 
Beginnings  of  Electro- 
chemistry : 
1817  
Cadmium 
Strohmeyer,  Her- 
Zincblende 
man 
1823  
Silicon 
Berzelius 
Flint  quartz 
1826  
Bromine 
Balard 
Sea-water 
1827  
Aluminum 
Wohler 
Alum 
1828  
Thorium 
Berzelius 
Thorite 
1830  
Vanadium 
Sefstrom 
Iron  slag 
1839  
Lanthanum 
Mosander 
Cerite 
1841  
(Didymium) 
Mosander 
Cerite 
1843  
Erbia 
Mcsander 
Cerite 
1845  
Ruthenium 
Claus 
Platina 
Beginnings  of  Spec- 
troscopy : 
i860  
Caesium 
Bunsen 
Mineral  water 
1861  
Rubidium 
Bunsen 
Mineral  water 
" 
Thallium 
Crookes 
Chamber  deposits 
1863  
Indium 
Reich,  Richter 
Zincblende 
1875  
Gallium 
Lecoq  de  Boisbau- 
Zincblende 
dran 
1878  
Terbia 
Delafontaine 
Cerium  minerals 
"   
Ytterbia 
Mariqnac 
Cerium  minerals 
Holmium 
Soret 
Cerium  minerals 
Thulium 
Cleve 
Cerium  minerals 
1879  
Samarium 
Lecoq  de  Boisbau- 
Samarscite 
dran 
Scandium 
Nilson 
Cerite 
1880  
Gadolinium 
Mariqnac 
Samarscite 
1886  
Dysprosium 
Lecoq  de  Boisbau- 
Holmia 
dran 
Praseodym 
Auer  von  Welsbach 
Didymia 
Neodym 
Auer  von  Welsbach 
Didymia 
Germanium 
Winkler 
Argyrodite 
Fluorine 
Moissan 
Hydrofluoric  acid 
Modern  Chemistry  : 
1894  
Argon 
Ramsay  &  Rayleigh 
Air 
1895  
Helium 
Cleve,  Ramsay 
Cleveite,  uranie 
1898  
Neon 
Ramsay  &  Travers 
Air 

Krypton 
Ramsay  &  Travers 
Air 

Xenon 
Ramsay  &  Travers 
Air 
Polonium 
Curie 
Radium 
Curie,  Bemont, 
Pitchblende 
Schmidt 
Actinium 
Debierne,  Giesel 
Thorium  ores 
1900  
Europium 
Demarcay 
Samarium 
1907  
Lutecium 
Urbain 
Ytterbium 
1913  
Brevium 
Fajans 
Uranium 
1916  
Denebium 
Eder 
Thulium 
Dubhium 
Eder 
Thulium 
