122 
MINERAL SPRINGS OF THE UNITED STATES. 
Analyses of mineral springs in Arkansas. 
[bull. 32. 
Constituents. 
Eureka 
Springs: Ba- 
sin Spring. 
Hot Springs. 
Mountain 
Valley 
Springs. 
Eavenden 
Springs. 
Warm 
Springs. 
Grains 
per gallon* 
0.15 
Grains 
per gallon* 
Grains 
per gallon." 
Grains 
per gallon* 
Grains 
per gallon* 
0.13 
4.48 
1.54 
0.47 
3.17 
3.97 
4.61 
6. 51 
4.43 
12.66 

1.26 
0. 27 
0.78 
Iron bicarbonate 
2.17 
0.09 
0.13 
0.38 
0.23 
0.11 
Calcium sulphate 
2.54 
Trace 
2.36 
2.18 
0.81 
0.19 
0.01 
1.57 
Potassium chloride 
1.42 
Magnesium chloride 
2.98 
1.24 
Calcium silicate 
0.46 
Chlorine 
j 0.88J 
i 
Iodine 
Trace 
Trace 
0.10 
Trace 
Iron sesquioxide 

I 
Iron 
J 0.08$ 
0.31 
1 | 
0.45 
1.87 
0.70 
0.49 
Silica 
0.38 
0.82 
1.86 
1.09 
| 1.84 
Volatile matter 
Water 
0.14 
Phosphorio acid 
0.02 
;:: 
Loss 
1.79 
Total 
5.85 
8.55 
21.82 
21.79 
18.11 
Gases. 
Carbonic acid 
Cubic inches. 
2.14 
1.33 
Cubic incites. 
161. 50 
21.10 
0.21 
Total 
0.21 
3.47 
182. 60 
•Potter and Riggs, analysts (1880). 
b E. Hills Larkrn, analyst (1859). 
e Chauvenet and Blair, analysts. 
'Wright and Merrill, analysts. 
(250) 
