D. M. Baich on Tellurbismuth from Dahlonega,Ga. 99 
Art. XVI.—On Tellurbismuth from Dahlonega, Georgia; by 
Daviy M. Banca. (Communicated for this Journal by Dr. 
C. T. Jacxson.)! 
* 
THE specimen of tellurbismuth submitted to the following 
pe 
_part of a tabular crystal, and was easily separable into thin 
folia, very splendent, anil 
PWpipe a small portion entirely volatilized, and the peculiar 
e 
little nitric acid had been added; it dissolved quickly and left 
nO residue. The solution was now evaporated till all traces of 
tire oxyds were expelled, somewhat diluted, and tested for 
su phurie acid by chlorid of barium; the non-formation of a 
excess of bisulphite of ammonia, and set aside for some hours. 
1 
ah, ® the Editors of the American Journal of Science: Gentlemen—An analysis, 
% me years since, of a tellurbismuth from Field’s gold mine in Dahlo- 
ht best. 
ade a new analysis,—to refer the matter to a chemist, who had 
ur papers, at that time. I therefore presented to Mr. David M. 
Suckea carefully selected crystals of the mineral, with the request that he 
licatj make an exact analysis of them, and prepare a paper on the subject for pub- 
endows... *  *. I have this day received Mr. Balch’s results, which I 
he oi for publication, and would state that I fully concur with him in the opinion 
pecan’ namely, that the mineral, being a tertellurid of bismuth, is evidently a 
ies 
Tn explanati ; ae ‘ : 
Anation of the error in my original analysis, I would state that the bis- 
aa having been precipitated betas the tellurium, carried down with it a portion 
tea latter and made the weight of the oxyd of bismuth too high, and that of the 
“ips too low. I was not aware that Thad ade this mistake before I looked 
..” My laboratory notes of this analysis, 1 therefore withdraw the name 
Mee a8 a applicable to this species, and adopt the chemical name given it by 
Respectfully, c&c., Cuartes T. Jackson. 
ston, May 28th, 1862.) 
