THE BAGSHOT BEDS OF BAGSHOT HEATH DISCUSSION. 487 



which they were illustrated. He was not clear whether the Author 

 still adhered to the conclusion that an overlap of the Upper or of 

 the Middle Bagshot Beds exists in the Bagshot country, or that 

 there is Upper Bagshot at Farley Hill, Bearwood, Coppid Beach 

 Lane, Bracknell, or Ascot. As, however, the present communication 

 was only a reply to a small portion of the speaker's criticism in 

 the February number of the Quarterly Journal, he (Mr. Monckton) 

 reserved his defence until the remainder of the Author's reply 

 should appear. He wished to take the opportunity of recording 

 the discovery of a band crowded with casts of marine shells in the 

 Lower Bagshot near Goldsworthy Hill. 



Mr. R. S. Heebies could not follow Dr. Irving's reasoning in this 

 paper. He did not consider that the northerly attenuation of such 

 variable beds as the green sands had been shown to be was proved ; 

 nor did he see that, if it were, it involved the thinning-out of the 

 underlying clays and Lower Bagshot Beds. He drew attention to 

 the fossils from the Lower Bagshot Beds of Goldsworthy which he 

 had exhibited. The bed in which they occur is obviously marine, 

 and the fact that it is intercalated in what is generally regarded as 

 a freshwater deposit favoured the double classification of the Bag- 

 shot Beds lately proposed by Dr. Irving ; but at the same time he 

 did not consider the facts were of sufficient importance to warrant 

 observers in setting aside the classification originally proposed by 

 Prof. Prestwich. 



