54 



W. A. E. USSHER ON TERMINAL CURVATURE 



Yig, 1. — Quarry in an Orchard to the south of Slwpt&n. 



Fig. 2.— Culm-Measure Grits and Shales exposed by the highroad 

 between Torrington and Bideford, opposite Wear Gifford. 

 (Section from 4 to 6 feet in height.) 







Fig, Z.— Devonian Slate between Houghton and High Week, Newton 

 Abbot. (Section about 10 feet high.) 



$ 4 



Curves due to contortion by faulting and upheaval. Small surface-curves due 

 to intrusion of roots from above. On the right hand a boss of greenstone. 



