Chemistry. 389 , 
If the . soluble part of the ore was in the state of . carbonate, it 
ought 'to have gained 5 or 5^ grains by being converted into 
sulphate, in which case there will be a loss of 3 ^er cent. ; 
21. M. JohrCs Analysis cf Meteoric Iron and Meteoric Stdnesi 
—The following are M. John’s analyses of Meteoric Iron * : 
Iron Of Pallas. 
Iron of Elbogen. 
Iron of Humboldt* 
iron. 
90.0 
87.5 
, . 91.5 
Nickel, 
7.5 
8.75 
6.5 
Cobalt, 
2.5 , 
1.85 
2.0 
Chromium, 
trace. 
0.0 
trace. 
Manganese, 
0.0 
1.9 
0.0 
100.0 
100.0 
100.0 
The following 
are M. John’s 
analyses of the Iron obtained by 
le magnet from Meteoric Stones pulverised : 
Iron from Meteorolite 
of CHattonay. 
OfL’Aigle. 
Of Sienna, 
' Iron, 
92.72 
92.72 
92.72 
Nickei, 
5.5' 
5.5 
5.1 
Sulphur, 
^ 1.6 
Cobalt, 
0.78 1 
Quantities too small to be weighed. 
Chrome, 
- trace . J 
100.00 
22. M. GrottJius's Analysis qf the Meteoric Stone of Cour- 
land. — This meteoric stone, the fall of which is described iii 
p. 384. consisted of the following ingredients : 
Iron, - = 26.0 
Nickel, - - 2.0 
Sulphur, - - 3.i 
Silica, - - 33.2 
Protoxide of liron, - 22.0 
Magnesia, - -10.8 
Alumina, - - 1.3 
Chromium, - - 6.7 
Lime, - - - 0.5 
Manganese, * U trace. 
100.0 
23. New Blowpipe . — Professor Green lias published an ac- 
count of a hew Blowpipe in the American Journal of Science, 
c c 
* See this Journal, Vol, I. p. 232, 233, 
VOL. VI. NO. 12. APRIL 1822. 
