THE 
| AMERICAN 
JOURNAL OF SCIENCE, &c. 
—>>—. 
Art, L—Analysis of the Meteoric Iron of Louisiana, and 
discovery of the Stanniferous Columbite in Massachusetts ; 
by Cuartes UrHam Sueparp, Assistant to the Professor 
of Chemistry, Mineralogy, §c. in Yale College. 
Tue circumstances relating to the occurrence and natural 
properties of the Louisiana iron, as well as the detection of 
nickel in its composition by Prof. Silliman, have, for several 
years, been before the public;* but no extended examination 
with a view to determine the presence or absence of other 
metals, or to ascertain the relative proportions of the iron 
and nickel, so far as I am informed, has hitherto been at- 
ts 
tno git Its entire solution was eo witholtt 
the aid of heat, and the liquid assumed a reddish brown color. 
2. To a part of the solution, was added muriate of ba- 
rytes ; no prea took place, from which the absence of 
oo was inferred 
e remainder of (1.) was decomposed by ammonia in 
excess; and the liquid after being warmed for a few moments 
* See Vol. VIII, p. 218 of this Journal. 
+ The m cific gravity of eee ee mronmere © whose gre’ 
one tenth of a a eral was 7°543. eee ‘telk ‘ta robtained 
by Dr. Bruce, who places it at 7 an os vs an ao differ- 
ent trials any be expected, however, notwith aomelty of the 
mass; since the fragments examined, will rly Leeann wad yt same density, 
owing to the different deg f effect their sepa- 
ration. 
Vor. XVI.—No. 2. 1 
