9 mi. (on steep slant) -> 41\frac{3}{4} ft. 5\frac{1}{2} ft. interval 2\frac{1}{2} ft interval Platypus c Didimella c. "Large Bysanycla c Pterinus large c. Acmalodonta, 25 ft interval 4V exposure The lower twenty section is better exposed along Indian Kendrick creek in section m10. from bridge to Barbosa. while northwesterly beyond road leading west to Michigan pikes [illegible] 1914 copied This area at Madison, \frac{1}{2} ft. typical clay shale. Varying from silt to day. clay