Geology at the British Association. 
343 
time. Those who hoped for enlightenment on this matter 
went away confused and disappointed. More discussion on 
this controversial topic is certainly necessary, but with more 
definiteness on the points at issue, and with the very latest 
information available. 
Local geology was represented by Mr. J. W. Stather in his 
paper on the New Section in the Oolites and Glacial Deposits 
at South Cave, where a mass of displaced Millepore Limestone is 
seen over chalky rubble. This section was visited during the 
week, and caused great interest, not to say amazement. 
Mr. W. S. Bisat described the features exhibited as a result 
of well-sinking, boring and quarrying operations at the edge 
of the Wolds at North Ferriby. These gave good sections 
from the Middle Chalk to the Lias. The Red Chalk and Marl 
are shown to be resting on the Carstones. A feature of par- 
ticular interest in this section is that the underlying clays 
ha,ve been definitely identified as Corallian, thus indicating a 
greater gap between the topmost Oolites and lowest Creta- 
ceous than had been supposed to exist in Yorkshire. 
A further paper was read by Mr. Bisat on the Middle 
Carboniferous where the limited vertical range of the Gonia- 
tites has rendered possible a greatly expanded sequence, and 
enabled the Millstone Grit series of North Derbyshire to be 
correlated with the upper part of the North Yorkshire and 
Lancashire series, and the Yoredale Shales of Derbyshire with 
the Sabden Shales of Lancashire. The Third-Grit of Lan- 
cashire and Yorkshire was thus shown by Mr. Bisat to be 
approximately on the same horizon as the Kinderscout of 
Derbyshire. 
Mr. R. G. Hudson’s paper on the ‘ Yordalian Section in 
Wensleydale, Yorks.,’ was a further example of the value of 
detailed palaeontological work in correlating rocks by means 
of genera that have limited vertical range, but wide horizontal 
range . 
The section was fortunate in having the presence of Prof. 
Coleman, who has done such great work in North-east Labra- 
dor. His lecture was splendidly illustrated with photographs, 
and his account of the work of ice in helping in the forma- 
tion of fiords, deeply cut valleys and cirques, in the Archaean 
shield of Labrador, was of intense interest to glacial geologists 
in this country. One was irresistibly reminded by his 
photographs of the Coolin Hills of Skye on one hand and the 
valley glaciers and mountains round Turtegro in Norway on 
the other. A valuable addition to our knowledge of the 
geological history of the River Thames was made by Dr. 
Hawkins. Apparently much remains to be done before a full 
explanation is forthcoming of the vagaries of the course of the 
Thames and its tributaries. 
1922 Nov. 1 
