246 C. A. Joy on a Meteorite from Chili. 
The precipitate containing the oxyds of iron, alumina, and 
chromium, and excess of carbonate of baryta, was dissolved in 
chlorhydric acid, the baryta removed by sulphuric acid, and 
iron and alumina separated by hyposulphite of sodas 
The sesquioxyd of chromium was separated from the oxyds of 
iron and alumina, as follows: The Al,O, was fused with Na0, 
Fe,0, was also fused with carbonate of soda and nitrate 
of potassa, and the mass lixiviated with water,, filtered, saturated 
with chlorhydric acid, alcohol added, heated to boiling, and the 
sesquioxyd of chromium precipitated by ammonia. 
Results : 
Substance taken = 0°518 grms. 
Found, SiO, 0°334 grms. 64:478 per cent. 
FeO 0°0729 14073 
MgO 0:06737 13°005 : 
MnO 0°01678 3°239 
Cr,05 0-00907 1°750-2°575 Cr20, Fed 
Al,O, 0:00593 1144 
aO 0-00448 0°864 
Sn0,+CuO 0-005 0:965 
NiO, CoO 0-002 0:386 
0°51753 99°904 
Second Analysis, 
Substance taken = 17114 grms. 
Found, SiO, 0-713 65°61 per cent. 
MgO 071549 13°90 
FeO 071647 14°78 
Cr,0, 0-0140 1:25 
Al,0O, 0-0120 1:07 
' MnO 0°0325 2°91 
0°0128 1°15 
Ni, CO 0-0010 0-09 
100°76 
Average. 
SiO, - - - ss 65°04 
MgO - - - . 13°45 
FeO - - - - 14°42 
Cr,0, - Pe - 1°50 
Al,0, = - - 1:10 
MnO . - - 3:07 
CaO - - - 1-01 
Ni, Co - - . 0°23 
