384 The Hon. Mr. Strangways on the 
other and from the nearest limestone rocks, by alluvial rubbish, that 
their connexions are only to be guessed at. 
At <7, the beds of dark green clay experience two sudden con- 
tortions, which give them somewhat the appearance of a camel’s 
back ; at />, they are seen perfectly perpendicular, and contain thin 
seams of whitish sand, which often accompanies this clay. The 
beds have a little twist at the top. All the rubbish here is of the 
debris of this clay, and shews the tendency to break into little bits 
like dice, w r hich distinguishes this and the blue clay, as well as the 
clayey beds of the limestone in many places. 
The beds of limestone, 0, which succeed after a short interval on 
the left bank, are nearly perpendicular, with a considerable con- 
tortion at the top ; but their line of inclination becomes gradually 
more regular, dipping towards the point where they were nearly 
perpendicular. To them succeeds the green clay, rising from under 
the limestone at n 9 but it is presently, as it were, doubled down upon> 
itself, and forced to re-enter the earth in a direction nearly vertical, 
(PI. 25, fig. 1). It is singular, that the beds which compose it 
retain their original parallelism to the incumbent limestone beds, 
much more than half the distance across from one side of this bow 
to the other, whilst the inflected beds, if not originally formed of 
their present thickness, have been squeezed into plates thinner by 
two-third parts than the beds which rise parallel to the limestone. 
These thin strata of clay are only bent, no where broken. Opposite 
to this contortion, the same clay appears at the waters edge, at m 9 
under the limestone, which rises to some height on the face of the 
cliff B , but the stratification is not sufficiently distinct to shew 
whether it suffers the same violence as at m Both here, and at r 9 the 
dark clay appears at a much lower level than on the opposite left 
bank, ai ?,/, and n. 
