HUD LEST ON AND DAVIS : EXOUESION. 
135 
some of the younger and more active members of the party appUed 
their hammers at various points with considerable success. 
NOTES WITH REFERENCE TO THE SECTIONS. 
The section through the Harrogate anticHnal may be regarded as approxi- 
mately correct so far as the surface is concerned. The folding of the Yoredale 
Rocks beneath the Stray is, to a certain extent, hypothetical. When the rail- 
way was made across the Stray the beds were observed to be so much disturbed 
that it was thought by some that the principal axis of elevation was at this 
point, rather than at the Sulphur Springs. 
The Millstone Grit series consist very largely of Shale. It must not be 
supposed that the relative thickness of the Grits and Shales is accurately 
delinated in the diagram. Even the Plompton Grits, which form the highest 
section of the Third Grits in this district, are by no means free from associated 
Shales. 
The section from Malham to Skipton is designed to give an approximate 
idea of the position and contorted character of the rocks in the vicinity of the 
Craven fault, and for many miles southward. The surface of the valleys is for 
the most part thickly covered with glacial clays, sand and boulders ; but where 
exposures of the rock are met with they always exhibit a more or less contorted 
section. At Malham Tarn the Mountain Limestone extends in more or less 
horizontal beds on the upturned edges of the Silurian rocks. The grit rocks 
which occupy the higher ground at Hanlith and Flasby Fells are in the form 
of synclinals, whilst the summit of the anticlinals occupy the lower parts of the 
valleys. At Skipton, a Limestone is quarried, which is supposed to be 
equivalent to the Mountain Limestone at Malham, but this is by no means 
certain. 
