QUARTZ MINING. 



139 



luicksllvcr and leave tlie p^old behind it in a state of 



men 



tlie foreground are in tlie act of cleanin 



opper trays \^dtli cyanide 



o 



assinm preparatory to re- 



atmg them vith a thin fihn of quicksih 

 We next visited several of the mines, 



the Eamirez and the Ortez 



the chief of which 

 From iliG latter a tumicl 



lU**^ 



A Gold Quai-tz Mill. 



^d tramway had just been completed, and the ore was 



mg extracted in 



considerable quantities, and transported 

 rith rapidity and cheapness to the mill, a distance of two 

 niles. The average yield, including all qualities of ore and 

 ^inartz, just as it comes out of the shaft, exceeds 20 dollars a 

 ouj and often rises as high as 27 dollars. For one quartz 



