Rl 
Meteoric Iron of Texas and Lockport. 375 
tain some stlphureted hydrogen, arising from the solution of 
the pyrites with which the mass is impregnated.. ‘A small in- 
soluble residue remained in the solution, which was digested with 
a fresh portion of dilute acid without any effect. It was then 
collected and dried; it was partly light and flocculent, but ‘the 
larger portion of it consisted of blackish gray scales, nearly all 
of which was attracted by the magnet. This insoluble residue 
makes up 1-4 per centum of the entire mass of the iron. 
It dissolved in aqua regia, leaving a small amount of finely 
divided chestnut brown matter, so intimately suspended in the 
solution that it did not subside in twelve hours, but ‘still gave 
_@ brown tint to the liquid. When ignited, it glowed for a mo- 
ment and left a light reddish ash. It dissolved with efferves- 
cence in pure fused carbonate of soda and the mass treated with 
_ Water, gave flocculi of silicic acid. ‘These characters show the 
-teddish ‘brown matter to have been either silica with a trace of 
carbon, or silicon, which last Prof. aac has ey shown 
to exist, in the Csweps iron.* 
Hydrosulphuret of ammonium, threw “town the metals from 
the solution in aqua regia, and the filtrate from this was found 
to contain phosphorie acid. ‘The metallic sulphurets consisted 
Solely of iron and nickel. A. careful secinegconete failed to caer 
either “cobalt, manganese, or any other metal. 
1 é with stlphureted hy- 
BMAGLUS 
“aes a ‘small precipitate, ‘of. which - -é pant was taken up by al- 
Kaline sulphurets and the residue ‘consisted only of copper. "The 
soluble part Was too small to obtain from it definite reactions: It 
was probably arsenic. 
One jvundred — na this insoluble reside ae ei ; 
. Nickel, Bee ae Seis ity oie BS 
Phosphorus, . e uF ‘ ini ne 3 wees 
Wiieedd Or ps Oe gos 1D 
90-00 
The considerable deficiency 10 this shoal is probably due to 
the fact that the iron occurs in the compound, as magnetic ox- 
yd, which is here estimated as metallic iron. The quantity of 
a See this Journal, First Ser., vol. xl, p. 366. 
