Saliferous Rock Formation in the Valley of the Ohio. 67 



situated. On conversing witti the manufacturers on the subject, they 

 were generally of the opinion that the water was not any warmer and 

 some thought it to be evidently colder. On application of the ther- 

 mometer to one of the deepest wells at McConnelsville, being eight 

 hundred and nineteen feet, the water, as it rushed up from the bot- 

 tom of the well in a constant stream, was found to be only fifty two 

 degres of Fahrenheit, which is very near the actual mean temperature 

 of that spot. In a well four hundred feet deep, three miles below 

 Zanesville, the water as it rises is 50°, and in a fresh water well, for- 

 ty feet deep, the thermometer stands at 53°, near by the salt well. 

 Whether the salt can have any operation in reducing the tempera- 

 ture I do not know. Salts, while in the act of dissolving, produce 

 cold, but, unless the solution is constantly going on, we can see no 

 reason why the saline waters should remain permanently cold; what- 

 ever may be the reason, I was disappointed in the result. The water 

 of the Muskingum salines has not been accurately analyzed, but the 

 following is the analysis of the Kenhawa water, conducted by a gen- 

 tleman fully competent to the task. 



Muriate of soda, ...... 56. 



Muriate of lime, . . . . . . . 35. 



Carbonate of iron, ...... 2. 



Free carbonic acid, . . . . . . 1 . 



Water, . . 906. 



1000. 

 The analysis of the bittern shows some additional ingredients. 



Muriate of lime, 335. 



Muriate of magnesia, ....... 39. 



Muriate of potash, . . . . . . 22. 



Muriate- of soda, . . ... .93. 



Bromide of calcium, a trace, 



Water, . . . . . . . . 511. 



1000. 

 From these analyses it would appear that no sulphates are contain- 

 ed in the waters, and that neither Epsom or Glauber's salts could be 

 made, as they are at the works on the sea board. They would af- 

 ford some magnesia but not in sufficient quantity to make its manu- 

 facture profitable. The amount of muriate of soda that might be pro- 

 duced is without limit. At present, the quantity manufactured at the 

 several works established along the valley of the Ohio, from Kiski- 



