16 



ALPHABETICAL INDEX OF AUTHORS. 



Author. 



Groth and Arzruni , 



Hallock 



Hartwall 



Hatchett 



Do. 



Haushofer 



Headdon 



Hermann 



Do. 



Do. 

 Do. 

 Do. 



Do. 

 Do. 

 Do. 

 Do. 

 Do. 



Do. 



Do. 

 Do. 



Do. 

 Do. 

 Do. 

 Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Hidden 



Do. 



Do. 



Hoffmann, G. 



Hunt 



Janovsky 



Jehn 



Jeremejew -_ 



JOLY 



Do 



Do 



Kenngott 



Knop 



Do ___ 



C 



bUBJECT. 



Crystalline form of columbite 



Columbite 



Fergusonite and aeschynite 



Discovery of element 



Columbite 



Microscopic analysis 



Columbite from Colorado 



Aeschynite 



Oxides 



Minerals, researches 



Ilraenic, niobic, and pelopic acids 



Composition of columbite from Middletown, 

 Conn. 



Niobic and pelopic acids in fantalic acid 



Saniarskite 



Pyrochlore and columbite 



Niobates 



Aeschynite, columbite, polj-crase, pyrochlore, 



etc. 

 Kesearches on ilmenium, niobium, and tanta- 

 lum. 



Researches on niobium and ilmenium 



Separation of niobic and tantalic acids. Re- 

 marks on pelopic acid. 



Dianium 



Columbite and samarskite 



Acids, formula, atomic weight, ilmenium 



Aeschynite, Fergusonite, samarskite, pyro- 

 chlore, Wohlerite. 



Oxides 



Ilmenium 



Analysis aeschynite and columbite 



Constitution of compounds 



Analysis ilmenorutile 



Acids 



Constitution of minerals 



Fergusonite, tyrite, and bragite 



Samarskite 



Aeschynite, ouxenite, and polycrase 



Separation of niobium from ilmenium 



Analysis of samarskite and columbite 



Researches 



Analysis of Hermannolite 



Researches, neptunium 



Fergusonite . 



Aeschynite 



Columbite 



Samarskite 



Columbite and samarskite 



Niobite 



Euxenite 



Crystalline form of columbite 



Salts, niobatcs 



Oxyfluoride 



Acids, nitrides, and carbides 



Tyrite 



Pyrochlore 



Dysanalite 



Date. 



M., '73 

 M., '81 

 M., '28 



'01 

 M., '01 



'84 

 M., '87 

 M.,'44 



'46 

 M., '46 



'48 

 M., '48 



'48 

 M.,'48 

 M.,'48 



'50 

 M.,'50 



'55 



'56 



'61 

 M.,'61 



'65 

 M., '65 



'66 



'66 

 M., '66 



'67 

 M., '67 



'68 



'69 

 M.,'69 

 M.,'69 

 M.,'69 



'70 

 M., '70 



'71 

 M., '76 



'77 



M., '8a 



M.,'81 



M.,'82 



M., '82 



M.,'52 



M.,'8(> 



M.,'71 



M.,'7a 



'75- 



'75 



'76 



M., '55. 



M., '71 



M.,'77 



