898 
DR. W. FLIGHT OH THE METEORITES OF 
XY. The nickel-iron enclosed in the rocky constituents of the meteorite. 
A quantity was dried and weighed and treated with mercury chloride, and it was 
found that 9'379 per cent, of constituents were removed. As already stated, when 
examined under a microscope the metallic particles appeared to consist entirely, or 
almost entirely, of nickel-iron. The nickel-iron was found to have the following 
composition :—♦ 
Iron. 76-990 
Nickel.21-320 
Cohalt. 1-690 
100-000 
The remaining constituents, consisting of purely rocky matter, amounting to 90’621 
per cent., are thus composed :— 
A. Soluble silicate . . . . 54-315 
B. Insoluble silicate . . . 36‘306 
90-621 
XVI. The gelatinisable constituents of the rocky portion of the aerolite. 
The soluble portion and the silicic acid belonging to that portion was found to have 
the following composition :— 
Silicic acid . 
Iron protoxide 
Magnesia . 
41-100 
27-960 
30-940 
Oxygen. 
21-92 
6-213 
12-380 
100-000 18-593 
These numbers indicate the presence of one olivine of the form 2(-j-Fe, fMg)0, Si0. 3 
or one closely resembling that which occurs in the Lance stone, which fell July 13th, 
1872, and was examined by DaubrAe. No lime and no alumina were found in the 
soluble part, though carefully sought for. 
