ALPHABETICAL INDEX OF AUTHORS. 



The numbers refer to the years, the part 18 being dropped, 

 minerals. 



When preceded by M it refers to 



Author. 



Allen 



Berzelius 



Blake 



Blomstrand __. 



Do. 



Do. 



Do. 

 boisbaudran _. 



Bong 



Breithaupt 



BrOgger 



Bromeis 



Brooke 



BUN-SEN 



Oaron 



Chandler 



Chydenixjs 



Do. 



COMSTOCK 



CONNELL 



COSSA 



Damour 



Do. 



Dana 



Do. 



Delafontaine 



Do. 



Do. 



Do. 

 Demarqay 



Subject. 



Descloizeaux 



Do. 



Deville 



Deville and Damour -. 



Deville and Troost 



Donald 



DoNATHand Mayerhofer.' 



dunnington 



Ebelmann 



FiNKENER and Stephens 



Forbes and Dahll 



GiBBS 



Gilbert 



Grewinck 



Analysis Hatchettolite and samarskite 



Mineral from Ytterby 



Occurrence of columbite 



Chlorides and acids 



Columbite 



Analysis columbite 



Polycrase 



Separation from gallium 



Ferrocj'anide 



Crystallization of columbite 



Aeschynite 



Composition Siberian columbite 



Aeschynite 



Flame reactions 



Niobic acid in tin ore 



Samarskite and columbite 



Analysis pyrochlore 



Analj'sis euxenite 



Columbite 



Name 



Columbite from Graveggia 



Composition of columbite from Bavaria 



Anal^^sis samarskite 



Crystalline form samarskite 



Columbite 



Oxides 



Hermannolite 



Samarskite 



Sipylite 



Action of carbon tetrachloride on niobic anhy- 

 dride. 



Crystallization of columbite 



Wohlerite. 



Metal 



Columbite and euxenite 



Vapor density of chloride 



Samarskite 



Atomic volume and affinity 



Microlite 



Crystals of niobic acid 



Composition of samarskite 



Bragite, Fergusonite, and euxenite 



Action of hydrofluoric acid on columbite 



Columbite 



Specific gravity and composition American co- 

 lumbite. 



Date. 



(15) 



