DAKVXS I GLACIAL DEPOSITS. 
247 
At the second fence east of the Park we have as heretofore, 
gravel on boulder clay : but immediately east of this, the boulder 
clay reaches to the top of the cliff ; the ground now becomes slipt, 
and there may be recent alluvial beds over the boulder clay. 
At the next fence, viz., that south of Danes' Dike Farm, there 
is clean red alluvial clay, and a doubtful patch of red boulder clay 
lying on gravel, probably the Sewerby gravel, which in its turn 
overlies the normal purple boulder clay. Then comes a hollow, 
occupied by sand and gravel, probably recent alluvial, over the 
boulder clay. East of the hollow, near the next fence to the Dike 
Valley, we have 
Sand and Gravel, not chalky, 
on Boulder Clay, 
on Sand and Gravel, 
on Chalky Gravel, 
on Chalk. 
On another occasiou I saw the following section opposite the 
Danes' Dike Farm, viz : — 
Sand and Gravel 
on Boulder Clay, 
on Sand and Clay, Warp, 
on Sand, 
on Boulder Clay, 
on Chalky Gravel, 
on Chalk. 
Between the last mentioned fence and the Dike Valley, the 
beds exhibit the changes shown in the diagram, Fig. 2. I give this 
figure, though it is neither a picture nor drawn to scale, but merely 
a diagram, because hitherto it seems that geologists have not had 
such a clear section of the cliff at the Danes' Dike, probably owing 
to their visiting it in summer ; now in summer the face of the cliff 
is apt to be masked by wash, as well as hidden by vegetation ; the 
only time to get clear sections, is when the face of the cliff is 
kept continually fresh by heavy rain and ever new landslips : and 
winter is the time for this. 
The section of the beds on the west side of the Danes' Dike 
Valley, when fully developed, consists of the following members : 
