12 PROCEEDINGS OF THE COTTESWOLD CLUB 



In a note, however I said the clay partings at Wood- 

 chester, in which quartz pebbles occur, might belong to 

 the Boulder period. The clays w'ere found on analysis to 

 be the same : — 



Woodchester gave - - 70'50 of silica 



Cleeve Cloud, taken from the 



surface - - - - G']'2 

 Symonds Hall Farm (ridge) - 69"58 

 Painswick Hill - - - 68'2 



In walking over the field at Symonds Hall Farm, with 

 the late Mr G. F. Playne, he picked up a piece of boulder 

 clay which, on examination, contained quartz pebbles ; the 

 clay, as mentioned above, containing 69'58 of silica. 



Sometime afterwards I found in a gravel pit of Oolite at 

 Frampton some pieces of the same clay with 69 60 of 

 silica, which shewed the great denudation which had taken 

 place as the gravel and clay were derived from the top of 

 the Cotteswold Range five to six miles distant. 



A gradual upheaval of the land occurred with some 

 amelioration of temperature, and after it was raised above 

 the sea, to about its present height, rather colder conditions 

 occurred and another kind of denudation in the form of 

 frozen snow, or land ice set in. 



The summers then are thought to have been very like 

 those of Greenland now, which often reach a high temper- 

 ature. The melted snow would carry large masses of 

 the soft friable Oofite, upon which it rested, into the 

 vallevs ; and in their progress they would be much 

 broken up, and deposited in large heaps. 



Another much smaller subsidence subsequently occurred 

 and the water came up the Severn \'alley, levelling down 

 the masses of rock, reducing them much by attrition ; 

 which explains how the gravels were formed, now some 

 distance from the foot of the Cotteswolds, as at Barnwood, 

 Coaley Junction, Frampton, and elsewhere. There is 

 little doubt that such was the case, as there is no agent 



