200. od. L. Smith—Composition of the Searsmont Stone. 
Art. XXIX.—WMineralogical and Chemical Composition of the 
Meteorie Stone that fell near Searsmont, Maine, May 21, 1871; 
y J. LAWRENCE SMITH. 
IMMEDIATELY after the fall of this meteoric stone a portion 
of it was placed in my hands for examination. The circum- 
stances accompanying its fall, as well as its physical characters, 
have been described in the last number of this Journal by Prof. 
Shepard (p. 183). 
It resembles very closely the Mauerkirchen stone that fell in 
1768, the crust of the specimens corresponding quite closely to 
that in thickness and appearance; the Mauerkirchen stone, 
however, has not well-marked globules like that of Searsmont; 
in this respect it corresponds more nearly with the Aussun, a 
already stated by Prof. Shepard. 
e specific gravity of the specimen examined was 3-701. 
The nickeliferous iron and stony matter were separated me 
chanically for analysis. One hundred parts of the meteorite gave 
Stony matter (including a little sulphuret of iron) 85°38 
. PE MIRRSLOPONIE EPUNE 50S so eas a on ce 14°62 
The iron afforded: 
Tron 90°02 
Nickel 9°05 
ODMH oy a “43 
Phosphorus and copper were not estimated. The stony pat 
treated with a mixture of hydrochloric and nitric acids, gave: 
Orion an tie MG a a a ce 52°3 
Insoluble “ 4 47°7 
The soluble portion afforded : 
HOR CaS Se 40°61 
Protoxide of iron 19°21 
haanesis Pee SS Sees 36°34 
Sulphuret of iron 3°06 ft 
Leaving out the sulphuret, which is obviously only ame 
— 
chanical mixture, this soluble part is evidently an olivine ' 
which is almost invariably the case with soluble portions ° 
meteoric stones. 
The insoluble part was composed as follows: 
. 
Alkalies, NaO, KO with trace of LiO ._...-- 
Chrome iron, small black specks --.-- sees ee 
