84 
THE GEOLOGIST- 
Before I proceed further with my notes, it may be as weU to give 
a tabular section of the various strata as exhibited in this district, 
preparatory to their minute division and explanation. It will be 
^ ^ observed that they are confined to 
the middle and lower divisions of 
the great Mesozoic series. 
Although I have endeavoured to 
show in my section the compara- 
tive thickness of the several divi- 
sions, we shall find that they vary 
very considerably in the extent of 
their development at different parts 
of even the small district under our 
present notice. 
The following may be understood 
as a general view of the series : 
g, Impure limestone, with shales, 
sandstones, &c., above 200 feet. 
/, Shales, sandstones, ironstones, 
with fossil plants and thin seams of 
COAL — 600 feet. 
e, Sandstone and ferruginous beds 
—70 feet. 
dj Upper Lias shales — 200 feet, 
c, Ironstone and marlstone series 
—150 feet. 
h, Lower Lias shales — 500 feet. 
a, Poecilitic gypseous marls. 
I shall now proceed to examine 
the various beds of which these 
series are composed, taking them 
in the order of their deposition. 
a, It is only the extreme western 
and north-western part of Cleve- 
land where we find the lowest divi- 
sion of our section apparent on the 
surface, and where, in fact, it forms 
the extreme northern termination 
of that long continuous New Red 
belt, which has one extremity in 
the rich vales of Taunton and Exeter, and its other in the broad 
estuary of the Tees. It is most easily seen in the district under 
notice, on the banks of the Leven and other smaller streams near 
Hutton Rudby, although I am not aware that its thickness has ever 
been accurately ascertained. A short distance below the village, the 
whole bed of the pictm^esque Leven is paved with the ripple-marked 
shales, which are so general in this part of the series. To the geolo- 
gical student of vivid imagination, how strange to stand upon these 
rippled beds and call to fancy's view the scene which, asons upon seons 
