January, 1915. 



k\o\vli:dgf.. 



jv.->->.^» 



ifSilSeijif- " 





Figure .s. The Fulsator. 



Figure 9. The trucks with locked covers. The contents of one are being tipped into the pulsator. 

 From plidtograplis kindly lent by the Burma Ruby Mines. Limited. 



