29 
Chalk Cliffs near Dover . 
This bed of organic remains with interspersed flints, is separated 
from the bed on which it lies, the chalk with few flints, by a bed of 
marie two or three inches thick, which lies about 15 feet below the 
two beds of flint mentioned at p. 25. The exterior roughness of the 
bed is however far less, and the interspersed flints are fewer, for 10 
or 12 feet of its lowest part, than in the middle or upper part of it. 
CHALK WITH FEW FLINTS. 
The chalk of this stratum is soft and white, though not of so pure 
a white as that with numerous flints. It contains a few thin beds 
of organic remains, which, arguing from the ochreous characters that 
are frequently visible, may be considered as being chiefly of sponges: 
these beds are most frequent and determinate just below the thin bed 
of chalk marie forming the separation between this and the superin- 
cumbent stratum. About 20 feet below that bed, two somewhat 
thicker beds of soft chalk marie run parallel with each other and 
with the line of separation, and at about three feet apart. As the 
marie shivers by exposure, these two beds may readily be traced 
along the cliff as crevices, rising from beneath the beach about two 
miles east of Dover, and pursuing their course without interruption, 
except such as is caused by the occasional falls of the cliff, quite to 
its termination beneath the castle : they are also very visible in some 
parts of the cliff above the town, where its surface is exposed. 
Traces of them may be seen on Shakspeare’s cliff ; but from their 
position in it, and in that further west, as well as from the nature 
of the cliff itself, which is too precipitous to be easy of access, they 
cannot readily be traced along it. 
The marie of these beds commonly shivers by exposure in a di- 
