vol. xx. (2) NOTES ON COTTESWOLD-MALVERN REGION 
109 
from Stow-on-the-Wold to Burford and opposite to the lane 
leading to Milton. The following are the particulars : — 
ft. in. 
1 6 Sandy marl with Bunter pebbles and decayed flints, 
Chert (of uncertain age) with sponge spicules, fragments 
of hard white oolitic limestone containing gastropods, 
Rhyolite with flow structure, and a small proportion of 
fine siliceous sand. 
4 o Broken and weathered limestone of the Great Oolite 
into which fissures from 1 to 2 feet wide extend. These 
and some horizontal clefts are filled with hard blue clay 
and Drift similar to that above described. 
2 6 Evenly bedded limestone into which the fissures also 
extend. 
— Talus. 
The Drift is also scattered over the surface of the fields 
around Tangley. Some of the flints are pitted, probably by 
exposure to freezing and thawing during the Glacial epoch. 
Much of the face of the quarry was slickensided, and some of 
it was covered with stalagmite upon which clay, containing 
small pebbles, was clinging. These conditions suggest the 
former existence of a cavern-fissure into which the Drift pebbles 
and flints of an overlying gravel were carried on the falling-in 
of the roof in course of denudation. A suggestion that the 
clay and pebbles were pressed into the fissures by one of the 
great ice-sheets is untenable. “ Northern Drift ” is recorded 
as occurring at Long Compton at 730 feet O.D., Whichford 
731 feet, and Chipping Norton 716 feet, but I have not found 
at those places anything more than a few Bunter pebbles, 
which may have been introduced by man. 
Considerable areas on the hills and the Plain are devoid of 
Drift. For instance, no foreign pebbles have been observed 
on the North and Mid-Cot teswolds to the west of an irregular 
line drawn from Chipping Campden to near Lechlade, thus 
excluding the greater elevations. The only explanation of 
this absence I can suggest is the possibility that the area was 
not crossed by any of the rivers introducing Drift, and that the 
