DILUVIAL DEPOSITS. 
29 
the centre than on the surface. These flints are 
not reduced to the state of jiebbles, much less of 
gravel, but are merely broken, and the sharpness 
of their angles worn away : they offer one of the 
few examples of a bed of partially rolled chalk 
flints lying at a distance from the chalk escarp- 
ment. 
At Isfield, Little Horsted, Barcombe, Welling- 
ham, &c., the surface of the Weald clay. Iron sand, 
and Green sand, is covered with beds of gravel, 
composed of water-worn fragments of sandstone 
and ironstone^ which in some instances are con- 
solidated into a coarse aggregate, and are evidently 
the detritus of the upper beds of the Hastings sinid 
formation. A considerable bed of it occurs in the 
parish of Barcombe, near the Anchor ; at Hamsey, 
on the estate of the Rev. Geo. Shiffiier ; and at 
Wellingham, near the seat of Mr. John Rickman. 
At Ringmer, and Laughton Place, a layer of 
loam and ochraceous clay is distributed over the 
surface of the Galt, and frequently contains be- 
lemnites and other organic remains, that have been 
washed from the upper beds of that deposit. 
But the most considerable and important di- 
luvial deposits in Sussex, are those forming the 
cliffs at Brighton ; and which possess characters so 
remarkable, as to require particular notice in this 
place : they will, in all probability, hereafter be 
found to belong, if not to the Crag, to an extensive 
formation*, which, though of modern origin as 
* On the summits of the chalk cliffs at Dover, I have observed a 
capinng of a similar stratum. 
