116 TRANSACTIONS OF THE 



Pioneer Copper Mining Company, Clark Creek, near Uniontown, El Do- 

 rado County : 



Samples thirty-nine feet from the surface ; assays thirty-four per 

 cent of copper, and of gold three hundred and twenty-three 

 dollars and seventy-six cents per ton. 



Specimens contributed by J. H. Corliss. 



Camp & McNulty, Hog Hill District. 

 Specimens. 



Keystone Mine, Copperopolis, Calaveras County: • 



Specimens. 



Kentucky Mine, Salt Spring Valley, four miles northwest of Copperop- 

 olis : 

 Specimens. 



Empire Mine, Copperopolis : 

 Specimens. 



Crocket Mine, three miles northwest of Copperopolis : ■ 

 Specimens. 



Suffolk Mine, Weehawken District, ten miles northwest of Copperopolis : 

 Specimens. 



Table Mountain, four miles southeast of Copperopolis: 

 Specimens. 



Superior Ledge, Light's Canon, Plumas County; incorporated August 

 eighteenth, eighteen hundred and sixty-three: 

 Specimens, sixty per cent. 

 Specimens donated by John Bidwell. 



Cosmopolitan Ledge, Genessee Valley, Plumas County: 

 Specimens donated by John Bidwell. 



San Diego Company, Bidwell's Bar, Butte County : 

 Specimens of croppings. 

 Specimens donated by E. T. Van Norden. 



General Grant Copper Bottom Mining Company, Salmon Falls, El Do- 

 rado County, Ocean Township ; ledge discovered August ninth, 

 eighteen hundred and sixty-three. 

 Samples of ore four hundred feet above the river bed and from the 

 river bed. 



Uncle Abe Lead, one hundred feet east of the General Grant : 

 Samples of croppings. 

 Specimens contributed by the General Grant Company. 



Pure Copper Company : 



Samples contributed by K. Dale. 



Well Copper Mining Company, Nevada County : 



Samples of carbonates from surface, and ores from forty feet below. 

 Ledge thirty feet wide. 



