Bay — Raised Beach, near Weston-super-Mare. 115 



In conclusion, I can only reiterate the hope that now that I have 

 drawn attention to the subject, some more competent Geologist will 

 devote more time than I was able to afford to the thorough examina- 

 tion of this interesting field of enquiry. If my hastily-made observa- 

 tions be found accurate, I shall be glad of the confirmation ; if they 

 are otherwise, then the sooner they are corrected the better I shall 

 be pleased. 



Note. — Since the above was printed, I have accidentally met 

 with a notice " On a Eecent Marine Accumulation at Boulogne," 

 published in the Proceedings of the Geologists' Association. The 

 author, my friend Mr. Rose, F.G.S., of Yarmouth, therein states 

 upon the authority of the late M. Bouchard, that " there appears to 

 have been a subsidence of this part of the French coast since the 

 Roman period ; " the supposition being founded upon the present posi- 

 tion of works constructed during the Roman occupation of Gaul. This 

 observation, therefore, affords me most unexpected corroboration of 

 my conjecture regarding a possible subsidence of the Wissant 

 district within even very recent times. 



EXPLANATION OF PLATE VII. 



Fig. I. — Section of Eecent Formations on the coast, near "Wissant. 



1. Sand ; the base of the dunes. 



2. Layer of vegetable mould (3 inches thick), absent in places. 



3. Sand (12 inches), apparently similar to that of the dunes. 



4. Peaty-stratum (12 inches). 



6. Patches of greenish sand ; capping 



6. Shingle of rolled flints and chalk-pebbles ; resting on Gault and Lower 



Greensand. 



7. Ancient Forest ; probably a continuation of No. 4. 



Fig. II. — Diagrammatic Section of the Eaised Beach, etc., near Sangatte. 

 1. " Head" of angular flints, etc. 



4. Chalky debris ; with 



4'. Slight beds of coarse gravel here and there in the mass. 



5. Greenish and brown sands, stratified and associated with layers of fine 



gravel. 



6. Ancient Beach; resting upon Lower Chalk. 



N.B. The same Nos. are applied in these two Figs, to the beds of the one series, 

 possibly of contemporaneous origin, with those of the other. 



Fig. III. — Sketch-map of the coast between Sangatte and Cap Gris-nez, to show the 

 position of the Eaised Beaches, etc. (Copied from the Admiralty Chart, 

 Sheet XIV., 1836.) 



V. — On a Raised Beach and other Recent Formations, neak 

 Weston-super-Maee. 

 By E. C. H. Day, F.G.S. 



I CANNOT refrain from adding, as a supplement to my remarks 

 upon the Raised Beaches in the Pas de Calais, a few rough notes 

 upon a similar formation, examined by me some years since, in Birn- 

 beck Cove, near Weston-super-Mare. The distance apart of the two 

 localities may seem to render this association of the descriptions 



