MINE ECONOMICS. 67 



the shaft-top, and of the tailings leaving the mill. The substitution 

 of a large centrally-placed mill with heavy stamps for several small 

 and scattered mills with light stamps, which at the present moment is 

 being carried out on the Champion Reef, and is in anticipation at 

 Ooregum, will decrease the cost of milling at these mines. The in- 

 troduction of mechanical haulage, automatic sorting tables, tailings- 

 wheels for elevating the tailings, and pointed boxes for classifying 

 and filling them direct into the cyanide-vats, all these improvements 

 would no doubt have a similar effect. So also will the introduction 

 of water power transmitted by electricity, as it is proposed to do by 

 the Cauvery power scheme. 



