On a Section of Strata exposed in a Railway Cutting at Morse, 
near Drybrook. By Epwarp WETHERED, F.G.S., F.C.S. 
T have to thank Mr. Lucy, F.G.S., for the pleasure of laying 
before the Cotteswold Club a section of the Strata I am about 
to describe; but I beg to state that he is in no way committed 
to any views which I may express on the subject. During last 
summer Mr. Lucy sent me a specimen of rock from Drybrook, 
and enquired whether I thought it was Millstone Grit, and if I 
knew of a large Pebble bed in that formation. I replied that I 
knew of no such bed, and as to the rock, I was afraid to express 
any decided opinion upon a hand specimen, seeing that there 
were petrological characters in connection with it which did not 
correspond with the millstone grit round Bristol, nor, so far as 
I was aware, in South Wales. Mr. Lucy shortly afterwards 
kindly invited me to accompany Sir W. Guise and himself to 
see the section referred to. However, before going further into 
the matter, I must briefly glance at some of the geological 
features around Drybrook, in order to clear the ground for 
further remarks. 
The Bristol, Somersetshire, and Forest of Dean Coal-fields 
are regarded as outliers of the great South Wales Coal-basin, 
their disconnection having been effected by the uplifting 
of the older rocks into an anticlinal curve, which has been 
subsequently removed by denudation, while the patch of Coal- 
measures in the Forest of Dean was preserved from erosion 
by the circumstance of their being laid in a synclinal curve. 
Their severance from the Bristol Coal-field was brought about 
in the same way. | 
By reference to the Geological Survey Map of England and 
Wales, the Forest of Dean Coal-basin is shown surrounded by 
the Millstone Grit and Carboniferous Limestone. There is 
