130 
PROCEEDINGS COTTESWOLD CLUB 
1919 
Sandstone rock at the fords and by dredging. The river was 
previously fordable at several places, notably at Worcester, 
during the low summer levels. In other parts, as at Wainlode 
and Pool House, near Upton-on-Sevem, pools that had been 
prevented by currents from silting up were often crowded 
with vessels waiting for freshets or spring tides to carry them 
over the shallows. 
In conclusion, I have to acknowledge my indebtedness to 
former members of the Club whose papers on the superficial 
deposits of the district, over which our excursions have ranged, 
form an important part of the Proceedings. Prominence should 
be given to the names of Symonds, E. Witchell, and Lucy, 
whose first contributions appeared in 1853, 1864 and 1869 
respectively, and formed the basis of the work since accomplished 
in this department of local geology. My thanks are also due 
to members for information on the opening of new sections 
in the superficial deposits. 
Further research, especially on the borders of the 
district, is necessary. The following problems, as to 
which I have above offered some speculative suggestions, 
are those that more especially demand solution by our 
members : — 
The immediate origin of the Cretaceous debris on the 
Stour-Evenlode watershed and in the valleys on the west of the 
Malverns ; of the Jurassic fossils in the latter area; of the 
Quartzose Drift at the Beacon Farm and Martins ; of the so- 
called Sarsen-like grit boulders in the Evenlode Valley ; and 
of the Cheltenham sands. 
The position of former junctions of the Avon with the 
Severn. 
The limit of the southerly extension of the Arenig and 
Irish Sea ice-sheets. 
The question wiiether the Chalky Boulder Clay ice invaded 
the Vale of Mo reton. 
The extent to which ice from the Irish Sea or Wales advanced 
into the Bristol Channel area. 
