and the Products of its Transmutation. 
I. 
Silica, 49°36 
Alumina, 25°19 
Lime, 12°73 
Magnesia, 1:12 
Potash, 
Soda, aa 
Water, 2°47 
Carbonate of Litic, . 1°35 
The quantities of oxygen are :— 
Silica, 
Alumina, pe 
- Lime, 3.09 
Magnesia, 0:42 
Potash, 0:26 
Soda, 1:49 
II. 
25°47 
12°22 
0:98 
1-51 
5°81 
2°47 
1:35 
15°62 
11-84 
5°72 
127. 
Ill. 
49°36 
25°33 
12-47 
1:05 
1-51 
5°81 
2°47 
1:35 
> 99°35 
3. Glaucolite from Lake Baikal.—Dark bluish-white. 
Density 2°666 ; but slightly decomposed by hydrochloric acid. 
It could not be determined whether the carbonate of lime was 
a product of alteration, or a primitive admixture. 
gave :— 
D: 
Silica, : . 46:01 
Alumina, 
Peroxide of Iron, } pate 
Lime, 16°32 
Magnesia, 0°42 
Potash, 
Soda, nS! 
Water, 0-47 
Carbonate of his 1:68 
The quantities of oxygen are :— 
Silica, IZ 
Peroxide of Lean. 0-44 
Alumina, 12:49 \ 
Lime, 4°46 
Magnesia, 0:18 
Potash, 0:09 
Soda, io a 
Analysis 
