TTLOE, QUATERNARY GRAVELS. 



93 



for examining the dip of the gravel, and showing the relation of the 

 thick brick-earth beds deposited at angles as high as 19°, 17°, 14°, 

 11°, and 9°, in curves falling to the river. The beak of chalk is 

 shown at about 18 feet above the Ordnance datum-line. It is 

 about 10 feet long ; and the junction with the escarpment of chalk is 

 not seen. 



This drawing is by Mr. S. Skertchly, to natural scale. 



Fig. 27 is fi-om a drawing I made in 1866, near the Line I J. 



w, 



I 70. 



Pig. 27. — Section in Crm/ford Pit. 



J 60. 



E. 





The mass of Thanet sand B, below the beak of chalk near A, was 

 then well seen ; patches of these sands also occur in the brick-earths 

 and gravels C. The dip was 15° where marked, and that of the cover- 

 ing bed only 2°. Fig. 27 is to natural scale, and represents a greater 

 length of section than fig. 26. This part of the pit has recently 



Fig. 28. — Section of part of the Cyrena-becl, Grayford, 



E. 



been excavated ; so I give both sections for reference. The coarse 

 gravel in front of the beak is pushed out horizontally into the finer 

 beds of sand, and divides into fine points. There were other beaks 

 of chalk visible at G and H. 



