GENERAL INDEX 



SUBJKCT. 



Author. 



Acids in Columbite 



Acid, Ilmenic, in Columbite 



" Niobic, in Wohlerite 



" Niobic 



" " in Tantalic Acid 



" " in Euxenite 



Ilmenic and Pelopic. 



Acids, 



Acid, 

 Acids, 

 Acids, 



Acid, Pelopic 



" Niobic 



" Dianic 



" Niobous 



" Niobic 



Acids 



Acid, Niobic, in tin ore 



Acids 



Acid, Ilmenic 



" Dianic 



Acids 



Ilmenic, in Pyrochlore and Columbite. 



Crystals of 



and Tantalic, separation of 



and Niobous 



Separation 



Action of Hydrofluoric Acid on Columbite 



" " Hydrogen Peroxide on oxides 



" " Carbon Tetrachloride on Niobic Anhydride. 



Affinity 



Analysis of a Niobate 



" " Methods for 



" Separation 



" Estimation 



" Separation 



" " of Metallic Acid 



<i " from Gallium 



" " Microscopic 



" Quantitative determination 



" Color reaction 



" Flame " 



Anhydride, Niobic, action of Carbon Tetrachloride 

 upon. 

 '1 Niobic, crystallization of 



Atomic Volume 



" Weight 



Cadmium Fluoniobate 

 Calcium " 



RosK, H... 

 Hermakn 



scheerer 

 Hermann 



SCHEERER 



PvOSE, H 



Peretz 



Hermann 



Ebelman 



Hermann 



Rose, H 



Hermann 



Rose, H 



Yon Kobell __ 



Rose, H 



noruenskiold 



RLOMSTRANI) 



Caron 



Marignac 



Von Kobell 

 Hermann 



Date. 



Rammellsberg 



JOLY 



GiBBS 



Weller 



DEMARgAY 



DoNATH and May- 



ERHOFER. 



Seamon 



Smith 



Hermann 



Marignac 



Hermann 



Rammellsberg 



boisbaudran 



Haushofer 



Osborne 



Levy 



Bunsen 



Demar^ay 



Knop 



Donath and May- 

 erhofer. 



Rammellsberg 



Santesson 



'48 

 '48 

 '48 

 '48 

 '48 

 '48 

 '48 

 '48 

 '51 

 '58 

 '58 

 '58 

 '59 

 '60 

 '60 

 '61 

 '64 

 '65 

 '65 

 '65 

 '65 

 '65 

 '68 

 '71 

 '76 

 '64 

 '82 

 '87 

 '83 



■83 

 '83 

 '58 

 '67 

 '70 

 '71 

 '8S 

 . '84 

 '85 

 '87 

 '66 

 '87 



'87 

 '83 



'69 

 '75 

 '75 



(23) 



