300 
brought about. We cannot pretend to trace in detail the process 
of elevation, folding over, and settling down, which must then 
_have taken place. And we cannot yet explain, where so much has 
been denuded, why these masses of Limestone remain. But I 
trust these imperfect suggestions may set other minds to work, 
and that this paper may be followed by others which may more 
fully elucidate the difficult physical geology of the Mendip range. 
Notes on a Rhetic and Lower Lias section on the Bath and 
Everereech Line, near Chilcompton, by Rev. H. H. Winwoop, 
, M.A, F.G.S. 
(Read December 9th, 1874. ) 
The members of the Club may remember that during one of 
‘ow evening meetings last session we walked together in 
imagination along the new Line of Railway lately opened between 
-Bath and Everereech. 
Starting from the valley through which the Avon flows we 
passed over the Lower Lias Clays and Limestones ; noticed the 
Mammalian Drift, consisting of gravel principally derived from 
our adjoining hills; then we came to certain light-blue Clays, 
these I ventured to think represented the UPPER Lias Clays, of 
which there are but few exposures in this locality. After passing 
through the Tunnel under Devonshire Buildings, cut partly 
through these Clays and partly through the Sands resting on 
them, we came on the other side to a cutting of very great 
geological importance, a section of which taken on both sides was 
given you at the time. After noticing the cutting of Inferior 
Oolite resting upon the Sands behind Mr. Moger’s house, 
remarkable for the disturbance of the beds which are much 
dislocated and dip rapidly towards the valley, we entered the 
Tunnel cut out of these same Midford Sands. 
Emerging to day-light on the other side, we will pass over 
= t. 
