2 74 PROCEEDINGS COTTESWOLD CLUB 191 1 



In Shepherd's Lane, north of Heath and Reach, Bedford- 

 shire, Dr Salter found red chalk above 400 feet O.D. in boulder 

 clay resting on Lower Greensand. With the red chalk were 

 hard chalk pebbles, Jurassic debris, gneiss and mica-schist.' 

 He discovered also red chalk and hard white chalk on the 

 site of the Battle of Naseby, and red chalk pebbles between 

 Canon's Ashby and Adstone at a height of about 500 feet O.D.^ 



The eastern origin of the Cretaceous material in the district 

 to the north and east of the Cotteswolds is considered to be 

 proved by the occurrence of Chalky Boulder Clay at Berkswell 

 near Coventry,^ and at Rugby,* and by the remarkable assem- 

 blage of chalk and flints at Rowington.' 



These constituents of the Drift may, however, have become 

 incorporated with the ice-sheet at much later stages of the 

 journey from the eastern counties than Lincolnshire, and may 

 represent strata now destroyed. 



If the red chalk had been transported by land-ice, I think 

 it would be found more frequently in the intervening country 

 and in the Severn Plain ; but much more information is 

 required as to the exact range of the pebbles before any definite 

 conclusions can be formed. Their occurrence in the limited 

 areas described, and at a great distance from their supposed 

 source, is not in itself sufficient to establish the above-mentioned 

 hypothesis of transport. 



VII. — Local Snow and Ice 



The conformation of the Cotteswolds, and the absence of 

 proof of the necessary elevation and other favourable conditions, 

 appear to preclude the supposition that the hills could have been 

 the gathering grounds for large glaciers. It is probable that the 

 only results of precipitation were extensive snowfields liable to 

 seasonal melting, during which the greater part of the rubble 

 formed during the Tertiary period would be removed. 



The evidence is still too incomplete to permit of conclusive 

 generalization. A better knowledge of the origin and mode of 

 introduction of the Drift, assisted by a more accurate determin- 

 ation of the constituent rock fragments than has yet been 

 obtained, will be required before it can be known to what 

 extent the Cotteswold Hills were affected by the abnormal cold 

 of the Glacial Epoch. 



I Proc. Geol. Assoc, vol. xix, pt. I, (1905) p.47. 2 Ibid, p. 43. 

 3 .Andrews, Proc. Warwickshire F. C. (1880) p. i. 4. B Thompson, Quart. Journ Geol. Soc, 



vol. Iv., pp. 81-2 ; S. V. Wood, jun., tftid., vol. xxvi., p. 224. 5 Brodie, Quart. Journ. Geol. Soc., 



vol. xxiii., p. 209 ; see also Rep. Brit. Assoc. (1865) p. 49. 



