BaILEy. | Mineral Waters. 163 
These waters are evidently of different degrees of dilution, al- 
though common salt is a characteristic ingredient of all of them. 
Calcium salts are also present in most of them, although repre- 
sented in various combinations. Calcium sulfate, as would be 
expected when we consider the origin of the waters from evap- 
orated ocean water, is usually present. When the magnesium 
salt is not reported as chlorid or sulfate, magnesium bicar- 
bonate is usually considered as being present. It is of interest 
to notice that iron bicarbonate, sometimes as much as eleven 
grains in a gallon, is found in these waters. The same thing is 
noticed in the saturated brines that are pumped up for the 
manufacture of salt. When these waters are used internally, 
it is evident that the iron salts present must have an important 
influence on the system. 
The Arkansas City water is reported as containing 171 grains 
of sodium sulfate per gallon, so it would have the added prop- 
erties of this cathartic salt. The Marion well is still richer in 
this substance, as it contains 358 grains per gallon. The pres- 
ence of bromids and iodids in many of the chlorid waters has 
already been referred to, and, indeed, calls for a classification 
sometimes in the special group. 
A glance at the table will show that the Kansas waters com- 
pare favorably in quantity of constituents and in variety with 
waters of the same class found elsewhere. 
