274 GEOLOGY OF THE ISLE OF WIGHT. 



with seams of shale and sand, and layers of shelly 

 limestone ; the appearance of the face of the cliff 

 formed hy these strata is shown in PI. XIV. In 

 this view the nearest headland is Bullface Ledge ; 

 that beyond, which extends far out to sea, is 

 Brook Point, the western extremity of the Bay ; 

 that in the far distance is the eastern boundary 

 of the same. The view of Brook Point from 

 Afton Down (PL XL p. 210), shows the conti- 

 nuance of the cliffs from beyond Bullface Ledge 

 and Brook Bay to Blackgang Chine. 



Masses of the Wealden clay with freshwater 

 shells, in connexion with the greensand containing 

 marine shells, should be the first objects of re- 

 search. Mr. Morris was so fortunate as to obtain 

 from this spot, a mass in which specimens of a very 

 characteristic univalve (Potamides carbonarius, PL 

 VI. fig. 5) were imbedded. Waterworn blocks 

 of the shelly limestones (PL VI. figs. 2, S, 4), and 

 rolled fragments of bones washed out of the cliffs, 

 will be found in abundance in the shingle. Slabs 

 of the freshwater limestones may be observed 

 in the cliffs at an accessible height ; and specimens 

 of the shale covered with cyprides and shells, ma\ 

 be obtained from the fallen masses on the shore. 



The laminated clays and shales are succeeded, 

 as we advance eastward, by mottled plastic clayi , 



