168 
THE LOWER OOLITES NEAR BRISTOL 
CORNBRASH. 
The highest member of the Great Oolite series, the 
“ Cornbrash ” (Disci, hemera), can be seen in some ploughed 
fields between Bradford- on- Avon and Farleigh Castle to the 
south, and also in the banks of the stream near the Castle. 
Terebratula intermedia, and Goniomya literata, are the 
only fossils I am able to record from these small exposures. 
III. ADDNEDUM. 
I have not included in this sketch any detailed account 
of the Cotteswold area where the Inferior Oolite is so 
highly developed. The series of beds, which at Leck- 
hampton attain a thickness of 250 feet as against about 
50 feet at Dundry, is of such a different character, at all 
events as regards the beds below the Parkinsoni zone, from 
those in the district chosen, that their correlation could 
not, in my opinion, be clearly exhibited within the limits 
of this brief review. Not only do the beds exhibit marked 
lithological differences, but the faunal differences are also 
very obvious. In Mr. Buckman’s view these are suffi- 
ciently great to require the supposition of a barrier cutting 
off the Cotteswolds from the Dundry and Dorset areas 
during the whole of Bajocian time. This view was ex- 
pressed, and reasons for it given, in a paper contributed 
to the “ Cotteswold Field Club ” in 1889, and in response 
to a recent inquiry^ Mr. Buckman informs me that all 
recent work has confirmed him in the opinion that Dundry 
was cut off from the Cotteswolds but in connexion with the 
Paris basin from, perhaps, Liassic times until the close of 
the deposits of the Humphriesianum zone when a subsidence 
of the barrier, as well as of the whole district, united the 
two areas and the Parkinsoni zone, common to all^ was de- 
posited. Dundry Hill is, in this view, more correctly 
described as the northernmost outlier of the Paris basin 
than as an outlier of the Cotteswolds. 
