38 
DILUVIAL DEPOSITS. 
lar flint : the inferior strata are more regular. It 
is particularly necessary for the reader to bear in 
mind, that although the chalk, with its horizontal 
flint veins (vide section above), is higher than the 
insular portions of the shingle bed, it is not situated 
perpeiidicularly above them. The cliff, as before 
mentioned, forms an inclined plane, its summit 
receding considerably from the shore : conse- 
quently a vertical section would cut off all traces 
of the shingle.* 
On the eastern extremity of the recess, the 
chalk is traversed by numerous veins of marl, but 
in other respects presents nothing worthy of ob- 
servation. At the termination of the chalk, a bold 
projection of the cliff occurs, in which the shingle 
and calcareous bed appear in their usual position 
and proportions 
Towards Rottingdean the cliffs increase in alti- 
tude, but the calcareous bed diminishes consider- 
ably in thickness, and, wherever a vertical section 
is exposed, is seen lying upon the shingle, in con- 
tact with a sloping bank of broken chalk ; the 
latter being evidently the ruin of the ancient chalk 
cliffs, the flints it contains presenting no appear- 
ance of having suffered either from attrition or 
exposure. 
* It was probably from want of attention to this circumstance, tliat 
the respectable writer previously alluded to was led to adopt the 
opinion, that the shingle bed was situated between two distinct beds of 
flinty chalk. 
