G. J. Brush on the Alabama Meteoric Stone. 2.43 
shading into dark gray ; this was fusible with difficulty on the 
edges and became magnetic on heating ; the green mineral ap- 
peared to be olivine, but the gray had also the same pyrognos- 
tic characters, while in physical characters it cannot be distin- 
guislled from Haidinger’s Piddingtonite, found in the Shalka 
meteoric stone. 4. The lens revealed brilliant points with me- 
Oxygen 
Silica, 51:33 26°37 
Alumina, 8:05 3°75 
Ferrous oxyd, 13°70 3°04 
be oxyd 0°42 oak 
Macnesi 17°59 é 
Soda, 0-45 age 
Potash, 0°22 08 
Sulphur, 0°23 
Niccoliferous iron, tr. 
eis 
99.02 
Contained in the acid solution than in the portion undecom- 
fait amount re- 
