344 THE PLEISTOCENE PERIOD. 



The beach is found as a marginal remnant along the edge 

 of L'Ancresse Bay, and for a short distance under the sand 

 deposits and around the Fort Pembroke promontory. 



West Coast. — We now come to the West Coast, where 

 we have some most interesting deposits. The Mont Cuet end 

 of Grand Havre must have been an island, for the beach is found 

 not only on the sea margin but in the quarry cuttings on the 

 Common side. I think much of the area of Grand Havre has 

 been eroded away since this beach time, for it is only traceable on 

 portions of the rock out-crops until we reach the Yale Church 

 hill. Across the Brave a large deposit of importance in the 

 coming discussion exists on L'Islet which, as its name implies, 

 has been an island during recent times. Here a large area is 

 covered by the beach which extended from the Sandy Hook 

 quarry across the dolmen-mound until it terminates on the 

 Braye side below the Chapel. On the way from L'Islet all 

 the way to Bousse, some near to, some distant from the 

 sea-margin, there are patches. Bousse presents a good 

 exposure which will be spoken of in another connection, later. 



The whole West Coast is fairly lined with deposits (see 

 photographs Nos. 5 and 6). There are breaks, however, for 

 at both Mare de Carteret and Grand Mare the deposits are 

 inland and not easily found by those who have not traced them. 

 The beach at the Mare de Carteret is very extensive. It begins 

 near the shore end of the Carteret Boad and stretches away 

 to and beyond the Hougue du Pommier Boad, and is still to 

 be picked up along the margins of the Grandes Mielles to the 

 Hougues Maingy encircling the smaller hougues between this 

 outline and the coast. The deposits then take to the sea-coast 

 and skirts the high land around Cobo and Hommet, but is lost 

 to view at the Grand Mare. 



Although the deposits are to be found off and on around 

 Perelle and Bocquaine they are of lesser importance, and may 

 be passed with this mention. 



South Coast. — On the South side of the Island there are 

 no deposits so far reported to the Society until we get to the 

 East of Bon Bepos. The best known examples are those found 

 in the caves and cliffs. Those in the caves have been treated 

 of in a separate paper. 



This level has been found to be lined around the coast 

 in Jersey also by deposits, " so numerous as, to quote a local 

 geologist, to render it more difficult to say where they do not 

 exist." 



The whole coasts of the English Channel are also lined 

 with this beach level (with breaks due to erosion, etc.). 



