328 oN SHELLY PATCHES IN THE BOULDER-CLAY AT BRIDLINGTON QUAY. 
had been conveyed from a distance. He thought the shells lived in 
Glacial times and near the place where they are now found. 
Mr. Lzeonarp Lyett did not agree with Prof. Hughes as to the 
shells found in a sandy bed at Dimlington being of the age of the 
Boulder-clay. The shells were excessively friable, and were found 
at various points along the coast. He thought they had been 
transported from a distance in frozen masses. He asked as to the 
state of preservation of the different shells in the deposit. 
The AvrHor, in reply to the President, said that the presence of 
deep-sea forms was a bar to the conclusion that they were entirely 
carried by coast-ice. The difference of this sand from that formed 
from the waste of rocks on the coast was an argument against the 
masses coming from the immediate locality. The state of preservation 
was very different in different patches, and seemed to depend more 
on the character of the matrix than on the nature of the different 
species. The patches were more abundant at Dimlington than at 
Bridlington, owing to the wider exposure of the Boulder-clay con- 
taining them. 
