22 MR. R. D. DARBISHIRE ON GREAT-ORME'S-HEAD 



and in the level sea- stripped scars^ I submit we have final 

 and irrefragable proof that the surface of these anciently 

 submarine hills had not been touched by the iceberg or 

 glacier for some time before, nor at any time since, they 

 respectively emerged from the waves. 



I may add, that I have not been able satisfactorily to 

 identify any rock-surface as moutonnee, and was equally 

 unsuccessful in finding the rock which appeared to Mr. 

 Binney to have been scored and polished, probably by ice, 

 below the bath-house. Limestone is peculiarly ill-adapted 

 for the preservation of these superficial markings, and 

 especially so when within the reach of the waves and the 

 fret of a shingle beach. 



C. Old Land. 



ix. Between tide-marks on the western shore, near to 

 the foot of the Head, I saw, some years ago, when a heavy 

 tide had removed the sand and shingle, a light-blue clay 

 without stones. This is, I believe, the same bed as appears 

 at the like level between Little Orme^s Head and Colwyn, 

 and again between Abergele and Bhyl to the east, and to 

 the west between the hills Penmaenbach and Penmaen- 

 maur. 



X. At Colwyn and Penmaenbach it is covered by a vege- 

 table deposit of flags, leaves, and nuts, with prostrate stems 

 and the roots of large forest trees. Traces of this vegetable 

 deposit were, on the occasion I refer to, to be seen on the 

 Orme^s-Head exposure. This bed, and the vegetable bed 

 above it, apparently testify to a slight and very recent de- 

 pression of the land. 



The Abergele beds prove a slight subsequent elevation, 

 by containing many fossil colonies of Tellina solidula^ Scro- 

 bicularia piper ata, and Cardium edule. Prom the vegetable 

 bed at the Penmaeiibach-brickfield cuttings, where part of 



