THE PROSPECTORS HANDBOOK. 



ing the pan to one side and away from the body, and allow- 

 ing the little water to flow a few times in one direction 

 round the bottom of the pan and over the gravel, some of 

 the gravel will be washed along with the water, and the 

 metallic mat tor will remain behind (Fig. 3G). If such trials 

 are successful with copper (s. g. 8'75) and lead (s. g. 11 :'"> >, 

 they certainly would be with gold (s. g. 19*35). 



When the gold is of so fine a nature as to float, the 

 operator should pour water on the floating particles, so that 





FIGS. 33, 34, 35. 

 The arrows denote the direction of the flow of water. 



their upper surface would no longer be dry ; thus some of 

 the gold might sink to the bottom of the " pan." 



The following is another method of obtaining the free 

 gold from a quantity of ore ; and it may be noted that the 

 surface quartz with iron or other stains (which signify sul- 

 phides deeper down the lodes) may be tried for gold by the 

 amalgamation process.* Finely powder a quantity of ore 

 along with water. Add mercury, at the rate of about 1 oz. 



* Quartz, if placed in the red hot part of a fire for a few mi; 

 and then thrown into cold water, can afterwards be quickly pow- 

 dered. 



