COTTESWOLD DISTRICT. 55 
Rep Post Quarry.—Due north of Radstock on the Bath road. There are 
twenty-one feet of beds exposed here, made up of oolitic grains and comminuted 
shelly matter in small granules. It is pale in colour, but weathers brown, and 
may be regarded as an inferior freestone. There area few fossils here and there, and 
low down occur traces of a Trigonia-bed, but the most interesting feature for us 
is a line of hardish stone, between three and four feet from the top, which contains 
casts of a Nerinea with very complicated folds (Ptygmatis). We cannot help con- 
trasting these thick and comparatively unfossiliferous exposures, entirely confined 
to one zone of the Inferior Oolite, with the dozen feet or so of Burton Bradstock or 
Bradford Abbas, full of organic remains, and exhibiting, if not the entire forma- 
tion, yet most excellent representatives of both the Upper and Lower Divisions. 
There are a few other exposures in this neighbourhood of the same horizon con- 
taining Nerinea, and notably one at Carnicor. 
Twerton Hitt.—We pass over a considerable extent of country without finding 
much of interest in the Inferior Oolite, until within one and three quarter miles west- 
south-west of Bath. At the Mission Chapel there are two exposures, one on either 
side of the road. In that on the east side the Fuller’s Earth may be seen atop, 
and below this about fifteen feet of rough freestone is worked. The upper portion 
is very white and chalky. About ten feet down the stone becomes firmer, and 
here occurs a shell-bed in very fine Oolite, which contains Nerinea Guisei and 
another species, also an Alaria and numerous Trigonia, Ostree, &e. 
On the opposite side of the road is a disused quarry, where the face of rock is 
somewhat limited. Towards the top is a shell-bed with Nerinwa and corals, and 
hereabouts may be noted Ceromya striata, Pholadomya Heraulti, and several 
species of Myacites, some in a vertical position. This deposit rather reminds us 
of the Pholadomya-grit, a term given by Lycett to the series of beds usually known 
as the Clypeus-grit. The point to observe here is that, although there are fifteen 
feet of rock, only the very highest series of beds are exposed, and these contain 
Nerinea, like their equivalents near Radstock. 
Miprorp.—Three miles south-south-east of Bath. Owing to a cutting on the high 
road we obtain here a complete section of the Inferior Oolite Limestone—the first 
that we have seen in No. 2 District. There is probably about forty feet of rock, and 
the whole of this mass belongs to the Upper Division. Indeed, we may go closer 
than this, and regard it as mainly, if not wholly, within the Parkinsoni-zone, since 
Ammonites Martinsii occurs quite in the lower stage, which appears to me to re- 
present the Upper Trigonia Grit of Stroud and Cheltenham. In that case the 
Inferior Oolite Limestone of this section would be the equivalent of the entire 
Upper, and part of the Lower, Ragstones of the Cotteswolds proper. There are 
but few Gasteropoda from here, and I should scarcely have ventured to say so 
much about it but for the fact that the Midford Sands, which underlie this limestone, 
