— 34 - 
GRAND AND GUNNISON VALLEYS. 
Water 
Soluble aud insoluble silica 
Potash 
Soda 
Lime 
Magnesia 
Iron sesquioxide 
Alumina 
Phosphoric acid 
Sulphuric acid 
Carbonic acid 
Volatile and organic matter * 
Chlorine 
Total 
* Containing nitrogen 
SAN LUIS VALLEY, 
No. 19 
Gar- 
held Co 
No. 21. 
Gunni- 
son Co 
2.82 
2.30 
77.88 
72.51 
1.38 
0.75 
0.63 
0.86 
0.71 
2.05 
0.58 
2.07 
2.86 
8.27 
10.24 
O.U 
0.01 
0.44 
L46 
0.21 
5.32 
6.21 
0.06 
0.05 
99.93 
99.98 
0.16 
0.13 
No. 5. 
Rio 
Grande 
County. 
No 44. 
Rio 
Grande 
County. 
No. 9. 
Conejos 
County. 
No. 10. 
Costilla 
County. 
No. 40. 
Saguache 
County. 
Water 
1.48 
3.. 50 
2.17 
3.97 
Soluble and insoluble silica 
80.75 
80.67 
70.24 
79.77 
75.05 
Potash 
0.53 
0.90 
0.68 
0.26 
0.11 
Soda 
0.94 
0.77 
1.98 
2.31 
0.44 
Lime 
1.62 
1.55 
1.46 
1.65 
2.10 
Magnesia 
1.40 
0.95 
0.44 
0.14 
0.67 
Iron sesquioxide 
1.84 
5‘.40 
2.94 
1.42 
3.60 
Alumina 
7.90 
5.09 
5.07 
8.03 
5.33 
Phosphoric acid 
0.21 
0.09. 
0.06 
0.07 
0.11 
Sulphuric acid 
0.22 
0.67 
0.02 
0.39 
1.10 
Carbonic acid 
0.70 
0.38 
0.01 
Volatile and organic matter * 
3.63 
8.00 
13.10 
4.57 
7.41 
Chlorine 
0.09 
0.03 
0.06 
0.09 
Total 
99.78 
100.66 
99.90 
100.85 
100.18 
* Containing nitrogen 
0.11 
0.09 
0.23 
0.18 
0.24 
