BULL. GEOL. SOC. AM. 



VOL. 14, 1902, PL. 23 





Figure 1. — Dike IS 



Dike is of soft yellow sandstone, in part conforming to shale beds (right side of figure) and in part 

 cutting obliquely across these beds and dividing into two branches (left side of figure) 



^^■i:^ 





Figure 2. — Dike 19 

 Shale beds dip away from both sides of the intrusion, which is directly under figure of man 



DIKES ON GRAVES CREEK 



