Geological Reports on the State of Neio York. 



Cubic inches. 



Carbonic acid gas, 39.00 



Atmospheric air, ----- 0.87 



Gaseous contents, 39.87 



" The temperature of these springs is said to be uniformly 50"^ F." 



Those of Ballston have proved more variable in their impreg- 

 nation, particularly with carbonic acid gas. 



United States Springs. 



" Specific gravity, 1.00611. Temperature, 50° F. 

 water contains, 



Carbonate of lime, with a small admixture of 

 oxide of iron, - - - - - 

 Carbonate of magnesia, - - 

 Carbonate of soda, ----- 

 Sulphate of soda, - - _ - - 

 Chloride of sodium, _ _ - - 



Silica * ------- 



60.82 



Carbonic acid 30.50 cubic inches." 



The mineral waters of Albany City are very similar to those of 

 Saratoga and Ballston, but contain a smaller proportion of car- 

 bonic acid gas. 



Sulphuretted or Sulphureous Springs. -^-These are very nu- 

 merous, and are distinguished by containing free sulphuretted 

 hydrogen in solution, in greater or smaller proportions, (sometimes 

 perhaps saturated,) and sometimes carbonic acid, in addition to 

 various salts, among which are common salt, muriates of lime 

 and magnesia, sulphate of lime, sulphate of soda, sulphate of mag- 

 nesia, and carbonate of lime ; and not improbably the sulphuretted 

 hydrogen is itself combined in some instances with gases. No- 

 tices of many of these springs are contained in this Journal, and 

 derived principally from the researches of Professor Eaton. Jour- 

 nal, Vol. XV, p. 335, 



* This water probably contains both iodine and bromine, but the quantity upon 

 which I operated was too small to admit of separating them and determining their 

 relative proportions. 



Vol. XXXVI. No. 1.— Jan.-April, 1839. 2 



