vol. xx. (2) NOTES ON COTTESWOLD-MALVERN REGION 115 
carried debris into the area in question is indicated by the 
occurrence of mounds of gravel along the low ground on the 
west of the Edge and Brailes Hills, between Fenny Compton 
and Shipston-on-Stour ( 22 , p. 196). The main mass of the 
Chalky Boulder Clay ice does not appear to have advanced 
over the high ground from the east, for I have found no Drift 
at Long Compton or Chipping Norton or between those places 
and Banbury. 
The position of the flinty gravels in the Mickleton Gap, 
on the edge of the Cotteswold escarpment, between the Campden 
and Ebrington Hills, is difficult to explain except on the suppo- 
sition that they were transported from an easterly direction 
by a strong current flowing from the Chalky Boulder Clay ice 
through the valley on the west of Edge Hill and deflected 
towards the Gap by the high ground of Blockley and Batsford. 
As a fine siliceous sand is the only Drift material found in the 
Avon Valley at the foot of the escarpment, it would appear 
that the coarser sediment was deposited in the Gap towards 
which the level of the ground rises from the east. 
Flinty gravels extend for some distance from the watershed 
along the Valley of the Stour down to the Avon, and along the 
Evenlode to Milton ( 65 , pp. 262-63). Blocks of grit resembling 
Sarsens occur at Bowl and Frescot and at other places in this 
part of the Evenlode Valley ( 92 , p. 96 ; 65 , pp. 263-64 ; 148 , 
pp. 41-4). 
Most of the Drift constituents of the Stour-Evenlode gravels 
are found in those of the Avon Valley, and may have been 
derived from the same sources. There are, however, some 
minor differences. I have not found red chalk in the Avon 
Valley. Rocks of the Chamwood type are common, some of 
the boulders being of large size, but only a few doubtful 
fragments have been found in the Stour-Evenlode area 
( 194 , p. 627 ; 65 , p.267). 
There is no evidence that the Irish Sea or the Arenig ice' 
reached the Avon, but it should be remembered that when the 
Chalky Boulder Clay ice or its melt -water began to flow down 
the valley, the traces of previous Glacial action would tend to 
disappear. There is no difficulty in accounting for the 
