STATE GEOLOGIST. 167 



in going down after the "lower salt rock" So far as I know, 

 the uniform result has ceen a failure; though these explorations 

 have added much to our knowledge of the geology of the State. 

 It will be understood, nevertheless, that by boring sufficiency 

 deep, the Onondaga salt 'group would be reached, and strong 

 brine might rise to the surface. Tnis formation lies about 350 

 feet below the bottom of Lyon's well. 



A company whose efforts were guided by James Scribner, 

 Esq., engaged in the first practical attempt to resuscitate the 

 salt manufacture at Grand Rapids. A well was commenced 

 Aug. 12th, 1859, and finished Oct. 14tb, being 257 feet deep, 



and extending 56 feet into the Napoleon group. The well at 



i., 

 this time was discharging -about 200 gallons of water per min- 

 ute, of such strength that, according to Mr. Scribnety424 gal- 

 lons would produce a bushel of salt. A sample of the brine- 

 taken at this time was analyzed by Prof. Fisk, with the follow- 

 ing result: 



Specific gravity 1 . 01752 



Fixed constituents, 2 . 3:3385 per cent., 



Carbonate of Iron, 0.00145 " 



Lime , 0.00473 " 



Magnesia, 0.00084 " 



Free carbonic acid, . 00603 " 



Silicic acid . 00025 " 



Sulphate of Lime,.-: 0.13120 " 



Chlorid of Calcium 0.27641 



Chlorid of Magnesium, 0.07196 



Chlorid of Potassium, 0.01561 



Chlorid of Sodium, (Salt,) 1 .73696 



Loss, 0.08841 



2.33385 " 



The above amount of solid constituents, if all salt, would re- 

 quire 290 gallons to the bushel. The actual per centage of 

 salt found, would require 392 gallons to the bushel. The impu- 

 rities are about 26 per cent of the solid constituents. Mr. 

 Scribner subsequently passed a tube to the bottom of the well, 

 bo as to eliminate the fresh water, and by this means, obtained 



