Gi;oi>ociy OF folkkstone^ — thk (iAui-r. 
283 
surface of tlio rock on whicli it rests, and distinctly displaying the 
variations in its thickness. 
It abounds in the lower part, with the remains of elephant, ox, 
stag, hytena, hippopotamus, Irish deer, &c., and, in the marly portion 
numerous specimens of two or three species of Helix occur. 
The shells, however, are found both in the gravel and in the calca- 
reous marl above it, as well as in the cavities of the bones. 
Lign. 22. — Biill-dog Steps and Spring, Folkestone. 
This ossiferous bed appears to be cut off by the valley, above 
referred to, towards which it thins out altogether ; and no traces of 
mammalian remains have been found on the east side of the town, 
except those of Whale in the brick-earth at Porter's saw-mill. 
On the west it thins off beneath a bed of dark brown brick-earth, 
such as is found throughout the neighbouring country. 
The presence of a breccia of chalk-flints, if it may be so termed, 
