Ch. XIII.] 



CRAG OF ENGLAND. 



175 



This diagonal arrangement of the layers, sometimes called 

 e false stratification,' is not confined to deposits of fine sand and 

 comminuted shells, for we find beds of shingle disposed in the 

 same manner as is seen in the annexed section (No. 32). 



The direction of the dip of the inclined layers, throughout 

 the Suffolk coast, is so uniformly to the south, that I only saw- 

 two or three instances of a contrary nature, where the inclina- 

 tion was northerly. ' One of the best examples of this variation 

 is exhibited in a cliff between Mismer and Dunwich, wood-cut 

 No. 33. In this case, there are about six layers in the thick- 

 ness of an inch, and the part of the cliff represented is about 

 six feet high. 



<========r===^==r ==z ^ No. 33. 



Section of part of Little Cat cliff, composed ofquartzose sand, showing the inclination 

 of the layers in opposite directions. 



Another example may be seen near Walton, where the layers, 

 which are of extreme tenuity, consist of ferruginous sand, 

 brown loam, and comminuted shells. It is not uncommon to 

 find in this manner sets of perfectly horizontal strata resting 

 upon and covered by groups of wavy and transverse layers. 



No. 34. 



Lamination of shelly sand and loam, near the Signal-house, Walton. 

 Vertical height four feet. 



The appearances exhibited in the diagrams are not peculiar 

 to the crag, and I have seen sand and pebble-beds of all ages, 

 including the old red sandstone, greywacke, and clay-slate, 

 exhibit the same arrangement. 



