BULL. GECL. SOC. AM. 



VOL. 2. 1890. PL. 13. 



[Eii:/--'.--'>?--Vs. .-.??« 



21 500ft. 



20 40 n. 



3 150 ft. 



2 20 fr 



■^g^ I 160 ft. 



^ 36 2500 ft. 



17-19 630 ft 



11-16 765 



10 60 rt. 



Figure 1, Cinna'bar. Figuvp 2,Cokedale. 



Sections at Cinnabar and Cokedale, Montana. 



