40 
DILUVIAL DEPOSITS. 
On the west side of tlie landing place at Rotting- 
dean, the cliff is low, and its upper part occupied 
by a mass of chalk rubble, analogous in some of 
its characters to the Elephant hedy of which it may 
possibly be a continuation. It is strongly marked 
with undulating lines, of an ochraceous yellow 
colour. The chalk, on both sides of the gap, is 
more or less disturbed, and the veins of tabular 
flint are broken and contorted ; this is remarkably 
the case with those on the eastern bank (Jig. 5.), 
LANDING PLACE, ROTTINGDEAN ; fig. 5. 
a. Elephant bed. 
g. Chalk rock. 
i. Tortuous flint veins. 
in wdiich the fragments of flint are detached from 
each other. The beach near this place contains 
semi-translucent pebbles of agate, and chalcedony, 
of a bluish grey colour. These are collected by 
visiters, and when cut and polished are used for 
bracelets and other ornamental purposes : they are 
usually called “ Rottingdean j)ehbles.” 
In concluding this description of the clifis be- 
tween Brighton and Rottingdean, I would observe, 
in the words of Mr. Webster, “ that it is im])os- 
sible to view them, without immediately jierceiving 
that they do not owe their existence to original 
