GEOLOGICAL SURVEY OF WISCONSIN. 



ANALYSES OF TE WATERS OF WISCONSIN continued. 



Though we have none that can properly be classed as "salt water," 

 nearly every one contains a small quantity of chloride of sodium 

 (common salt), varying from a mere trace up to 0.423; the mean 

 (omitting No. 3 as exceptional) being 0.052. It is believed that no 

 salt bearing strata exist among the rocks of Wisconsin, and conse- 

 quently that the production of salt can never become one of the re- 

 sources of our people. 



A few only of these waters contain potash in small quantities, in 



* A more complete analysis of the water of the Bethesda spring will be found in the report ca 

 Eastern Wisconsin, and of the Sparta well in the report of Mr. Strong in a subsequent volume. 



