Vol. 68.] PETEOLOGICAL XOTES ON GUEENSEY, ETC. 57 



Cornet, measuring perhaps only 300 yards by 100, there were not 

 less than five. As to geographical arrangement in varieties of 

 diorite, it should be remembered that Guernsej' showed what is 

 probably only a small part of a very large area. He desired 

 to express his regret at the abandonment of Guernsey work by 

 Mr. J. Parkinson, and the loss to Channel-Island geology incurred 

 by the death of the late Father Noury. 



Prof. BoNNEY said, in reply to Dr. Evans's question, that, as 

 was explained in the paper, the very basic type of Port Albert 

 (Alderney) and of Pon Pepos Pay (Guernsey) seemed to be the 

 oldest ; the porphyritic dark type seemed to come next, but it was 

 rather mixed up with the normal diorite, of which there was a 

 darker and a lighter variety ; and very distinct from all was a 

 felspathic diorite in veins. Also, the more normal diorite became 

 more quartzose towards the north-west and towards the north in 

 Alderney. 



