rt see ir 
} 
J. Lawrence Snuth on Meteorites. 157 
Before the blowpipe it melts readily, little blisters forming on 
the surface from the escape of chlorine, and blackens. mag- 
net is a most ready means of distinguishing the Schreibersite from 
the pyrites commonly found in meteoric irons, for although the 
pyrites is attracted by the magnet, it is necessary that the latter 
should be brought quite near to it for the effect to be produced, 
whereas if the particles exposed to the magnet be Schreibersite, 
they will be attracted with almost the readiness of iron filings. 
Hydrochloric acid acts exceedingly slowly on this mineral when 
pulverized, with the formation of phosphuretted hydrogen. Nitric 
acid acts more vigorously and readily dissolves it when finely 
pulverized. The composition of this substance has in all cases 
but one, been made out from the residue of meteoric iron, after 
having been acted on by hydrochloric acid, which accounts for 
the great variation in the statements of the proportion of its con- 
stituents. 
Mr. Fisher examined pieces of Schreibersite detached from the 
Braunau iron, with the following results: Iron 55-430, nickel 
25-015, phosphorus 11-722, chrome 2-850, carbon 1-156, silex 
0°985 = 98-158. 
The results of my analyses do not differ very materially from 
this; they are as follows: 
8 2. 
. 57-22 56°04 56°53 
Nickel, - 25°82 26-43 28°02 
Cobalt,’ : ; 0°32 0-41 0-28 
Copper, . : . trace not estimated. 
Phosphorus, 2 13°92 14°86 
Silica, : 162 
Alumina, - 4 163 
Zine, = : . trace not estimated. 
Chlorine, 018 
100°66 99°69 
