222 RAISED BEACHES, CLIFF AND RUBBLE HEADS. 



patches are situate in the clefts of rock and all rest on the 

 rock and are covered by cliff-head. 



At St. Martin's Point many small patches of beach are 

 found. Usually these exist in pockets, occupying small 

 spaces in the rocks immediately under the cliff-head, and in 

 most cases associated with a rough rock platform extending 

 some yards from the cliff. At the battery which is found 

 here a layer of beach passes right through the cliff", being 

 visible on both sides of the small promontory. Just here also 

 in a gully is a pair of twin caves, the sides and roof of which 

 contain deposits of beach stones. In several places along this 

 portion of the coast small patches occur giving evidence of 

 the former existence of considerable deposits. 



Proceeding northwards, traces of raised beach deposits 

 continue until Divette beach is reached, where some well- 

 marked deposits are visible. This portion of the cliff has been 

 described in the transactions and its connection with the cliff- 

 head ; later on, however, I shall allude to these formations 

 again. 



Crossing Divette Bay, patches are visible under the cliff- 

 head, on which the battery rests at Bec-du-Nez. North of Bec- 

 du-Nez itself a deposit existed up to the date of the Society's 

 excursion to that point on the 14th June, 1892, but when 

 examining the cliff on that date the patch was found to be 

 completely washed away, only a remnant as large as a dinner 

 plate was found detached and waiting its turn to be carried 

 away by the eroding action of the sea. 



From Bec-du-Nez to Fermain Bay no traces have been 

 found to exist, though, the coast being difficult of access, some 

 may exist without having been seen. 



At Fermain Bay, however, we have some very satisfactory 

 portions visible under the cliff section. I am sorry to 

 say that owing to the encroaching sea we must not hope to 

 preserve this evidence of a former sea-level long. 



This deposit exists as a line under the cliff head and 

 immediately over the rocks, for some yards north of Fermain 

 Bay Point. Mr. Carey has taken the levels of two portions, 

 one on the east face and one on the south face of this point. 

 These levels are 25 '5 9 and 25 94 respectively. It is evident 

 that this deposit is of the same level as Moulin Huet, and 

 no one can examine the intermediate deposits without believ- 

 ing that these are all of exactly the same elevation. We may 

 therefore say that we have evidence of a series of beaches 

 which at one time extended from Icart Point to Fermain, at 

 an elevation of 25 feet above mean sea-level. 



