18 



ALPHABETICAL INDEX OF AUTHORS. 



Author. 



KosE, H. 



Do. 



Do. 



Do. L- 



Do. 



Do. 



Do. 



Santesson 



schaeffer 



scharizer 



scheerer 



Do. 



SCHRAUr 



Seamon^ 



Do. 



Shefard 



Do. 



Do. 



Do. 



Smith, J. L 



Do. 



Do. 



Do. 



Do. 



Stelzner 



Thomson .. 



Troost. See Deville and 

 Troost. 



Valentine 



VoGEL. See Leonhard und 

 Vogel. 



Von Kobell 



Do. 



Do. 



Weller 



WOhler 



wollaston 



Do. 



SUB.TECT. 



Niobic acid 



Salts 



Compounds 



Niobous acid 



Nitrate 



Columbite and samarskite 



Colurabite, samarskite, euxenite, Fergusonite, 



tyrite. 



Hydrates, niobates, and fluoniobates 



Analysis columbite 



Columbite 



Metallic acids in minerals 



Woblerite, euxenite, and polycrase 



Columbite 



Analj'sis of a niobate 



Analysis of columbite 



Specific gravity columbite 



Columbite 



Hermannolite 



Rutherfordite and yttrotantalite 



Kesearches 



Name 



Columbite, samarskite, euxenite, Hatchettolite, 



Eogersite, and Fergusonite. 



Researches. Mosandrium 



Method of analysis 



Occurrence of minerals in granite 



Columbite 



Columbite 



Dianium and dianic acid 



Dianium 



Dianic acid 



Action of hydrogen peroxide on oxides 



Properties of oxide 



Identity of columbium and tantalum 



Element 



Date. 



•59 



'«0 



'60 



'(30 



M., '(32 



M.,'63 



75 



M., '84 

 M.,'79 



'48 

 M..'48 

 M.,'61 



'83 

 M., '82 

 M., 'G6 

 M.,'70 

 M., '7f5 

 M.,'80 



M., '77 



'78 



'83 



M., '73 



M.,'36 



M.,'0.5 



'GO 

 '61 

 '65 

 '82 

 '89 

 '09 

 '11 



