39 



[Lesley. 



the railway makes systematic mining along this range a veiy different 

 affair from the "ground hogging" of the surface hitherto pursued, un- 



FiG. 11. 



systematic, wasteful and costly as it of course was. A regular stoping 

 of the deposit on a large scale and the washing of all the ore ground 

 must yield a profitable revenue. 



