38 PROCEEDINGS COTTESWOLD CLUB 1907 
yields an excellent supply of water, which is said never to 
have been known to fail, although it is replenished some- 
what slowly. 
A well 35 yards north-west-by-north of the preceding is 
only 10 feet 6 inches deep. It is nearer the limits of the 
clay-patch, and another, 100 yards to the north-north-west 
of Castle Farm, measures 12 feet 6 inches. The pond at 
Castle Farm is mainly fed with water which drains off the 
bank to the west. At the cottages in the fork of the road 
to the south of the pond there was formerly a well about 
6 feet deep in clay. Recently, however, it was replaced 
by a concrete-lined tank, which is based upon the Great- 
Oolite limestones, and surrounded by clay. The clay is 
g feet thick here. The Royal Oak Inn, at the northern 
end of the village, is built upon clay, but wells are not 
relied upon, for the supply of water is derived from the 
roof and stored in a large concrete-lined tank. 
The boundary-line of the clay-area lies at a short 
distance to the north of the inn, because the cottages 
about 200 yards away in that direction are built upon the 
Great-Oolite limestones, and have to depend upon rain- 
water, stored in the usual concrete-lined reservoirs. The 
trial-shaft at the new (September, 1906) schools, proved 
21 feet 6 inches of Great-Oolite limestones. 
From these few notes it will be readily understood that, 
while those houses well within the clay-area can depend 
upon a fair supply of water (even in a period of very dry 
weather) retained by the clay, those near, on, or without 
that area must rely upon rain-water derived from off the 
roofs and stored up in large, sunk, concrete-lined tanks or 
reservoirs. 
Since all the information concerning these clays has 
been obtained from completed wells and surface-indications, 
it follows that but little is known of their precise lithic 
structure, and nothing of their paleofauna. It is said that 
