Fig. 3 Photomicrograph of line-grained schistose wall-rock, Cole mine, with 

 branching masses of pyrite, and quartz, sericite, chlorite and tourmalin. u^-Lagnified 

 154 diameters) 



Fig. 4 Photomicrograph of rusty gneiss underlying the ore at the Cole mine, 

 showing pyrite molded upon garnet. (Magnified 83.5 diameters) 



