ioS 
PROCEEDINGS COTTESWOLD CLUB 
1919 
the surface-soil as it was lowered by the slow process of sub- 
rerial denudation. It is important to bear in mind the difference 
between the Drift above described and that containing debris 
from the ice-sheets. 
The Quartzose Drift is sometimes preserved in a capping 
of sandy marl on low hills on both sides of the Severn, with 
flints at Tunnel Hill Worcester, Apperley and Norton on the 
east, and without flints at Dripshill and Gadbury on the west. 
The occurrence of Quartzose Drift at the latter place seems to 
indicate that at some time before the Ice Age a stream flowed 
from the north at a distance of four miles from the position of 
the present main river. Below elevations of about 150 feet 
O.D. the pebbles and flints are intermingled with Glacial Drift 
in gravels near the river, which has continued to transport some 
Quartzose pebbles from the sources above mentioned until 
more recent times. 
The drainage has been diverted from some of the ancient 
river channels, as at Tangley, or they are now occupied by 
streams flowing in opposite directions, as in the cases of the 
rivers Stour and Evenlode, leaving the Drift pebbles and flints 
at various heights above the adjacent valleys. The great 
antiquity of the original deposits from which this sporadically 
scattered Drift has been derived is indicated by the denudation 
that has taken place since the rivers flow’ed at the higher 
levels. 
The Drift on the east side of the Buckle (“ Buggilde ”) Street, 
Upper Slaughter, at 700 feet O.D., is the highest at present 
known in situ on the Cotteswolds. Similar pebbles and flints 
occur also on Meon Hill, 637 feet O.D., and other places on the 
uplands ( 65 , pp. 260-61), but the full extent of these patches is 
unknown, as much of the land is under pasture. There are no 
quarries showing that anything more important has been 
preserved, except at Tangley, where the composition of the 
Drift and its mode of occurrence make it unique on the 
Cottesw'olds. It lies at a height of 660 feet O.D. on a ridge 
between the Evenlode and Windrush valleys, where the level 
of the stream is about 340 feet below. The roadstone quarry 
in which the section is exposed is on the east side of the road 
