88 



MINING INDFSTEY. 



Table showing Qualitative Determination of Comstock Mine Waters, by Eugene S. Bristol. 





Jacket, bot- 

 new shaft. 



Jacket, west 

 0-foot level . 



[mperial,bot- 

 new shaft. 



d Norcross, 

 Df new shaft. 



id Norcross 

 rift, 930-foot 



fifth station, 

 th drift. 



Dttom of new 

 haft. 





ellow 

 om of 



ellow 

 rift, 50 



i 



•a a 



ale an 

 Dttom < 



ale ar 

 westd 

 level. 



OJ 







> ^ 



^ -a 



w 



K .Q 



K 



m 







Solid contents, grammes* 



0.0553 



0.3271 



0.0615 



0.0924 



0.0784 



0.2660 



0.080 



Bases 



Lime. 



Lime. 



Lime. 



Lime. 



Lime. 



Lime. 



Lime. 





Magnesia. 



Magnesia. 



Magnesia. 

 Potassa. 



Magnesia. 



Magnesia. 



Magnesia. 

 Potassa. 



Magnesia. 





Soda. 



Soda. 



Soda. 

 Alumina. 



Soda. 



Soda. 



Soda. 



Soda. 



Acids 



Carbonic. 



Carbonic. 





Carbonic. 



Carbonic. 



Carbonic. 



Carbonic. 





Sulphuric. 



Sulphuric. 



Sulphuric . 



Sulphuric. 



Sulphuric. 



Sulphuric. 



Sulphuric. 





Phospho- 



Phospho- 



Chlorine. 





Phospho- 



Phospho- 



Chlorine. 





ric. 



ric. 



Silicic. 



Silicic. 

 (Trace.) 



ric. 



ric. 





* In 100 cubic centimeters of water. 



A considerable series of less extended analyses is given above. In these 

 the amount of solid matter per 100 cubic centimeters is first given, then a 

 qualitative enumeration of contents. It will be seen that beside the elements 

 found in the Savage water, that from the Yellow Jacket shaft contains phos- 

 phoric acid, which also occurs in the lower Hale and Norcross and in the fifth 

 station of the Savage. The contents of these waters, together with their tem- 

 peratures, illustrate nearly all the chemical agents now actively engaged in the 

 vein. Below are given three tables: one of analyses of the clays; another of 

 horse materials ; a third contains the prominent rocks of the neighborhood, 

 propylite and andesite. 



