698 



GEOLOGY AND MINING INDUSTRY OF LEADVILLE. 



Bullion production. — Ju Table IX are given the amount and value of gold, silver, 

 and lead produced at the different smelters in the month of December 1880 ; also, in 

 the last column, the value of the total product for the year 1880. 



Table IX.— Bullion production. 



SLAG. 



Fire assaus of sla<j, made by J. E. Hardman in March, IdSO. 



Fire assays made at the California smelter on California smelter slag from February io May, 1880, by J. E. 



Hardman. 



Silver assays of Malta smelter star), made by Robert Bunsen. 

 Silver, from 10 to 17 ounces to the ton. 



