Vol. 63.~] THE PLATEAUS AROUND TORQUAY. 123 



plateau of Triassic age has probably been trimmed-up since, but 

 there is as yet no definite evidence of this. 



Mr. H. B. Woodward, who had been asked by the Author to 

 make reply on his behalf, spoke of the difficulty of fixing the age 

 of the plateaus ; and, in answer to Mr. Reid, he observed that the 

 Author had not denied the possibility of Cretaceous planation. 

 The subject was one which demanded an intimate local knowledge 

 of the features, and might better have been discussed on the ground. 

 The reference to the Miocene Period, of the disturbances that 

 originated the Aller and Bovey basins, was reasonable. With 

 regard to the plateau-deposits on the Greensand, the speaker was 

 inclined to look upon those of Blackdown as to a large extent the 

 relics of a subaerial peneplain, such as had been described by 

 Prof. W. M. Davis. The accumulations were mainly due to the 

 erosion of Chalk and Greensand, and the chert-deposits had been 

 decomposed, and much of the soluble silica carried down to silicify 

 the Blackdown fossils. Only here and there on the plateaus were 

 evidences of the Eocene river-deposits to be detected. 



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