S09 



EXPLANATION OF THE PLATES. 



TABLET I. 



Geological map of the south-eastern part of Sussex. 



TABLET IL 



Fig. 1. View from a mill, west of Lewes, exhibiting a profile of the chalk hills to the south 

 of the town, and the situation of the "Bkies" in the levels, see page 20. 



Fig. 2. View from the eastern brow of Mount Harry, west of Lewes ; shewing the general 

 form of the chalk hills in the south-eastern part of Sussex. 



Fig. 3. Profile of Cliff Hills, near Lewes ; with a section. 



TABLET in. 



Fig. 1. Plan of the stratification of the county of Sussex. 



The Tilgate beds are not introduced, as their position was unknown when this plate was 

 engraved. The " limestone i?t clay" resting on the ferruginous sand, refers to the Framfield 

 limestone; but its situation is incorrect, for subsequent observations have shewn that it 

 alternates with the iron-sand*. 



Fig. 2. Section from Lewes to the Black Boys. The situation of the hmestone near 

 Eason's green, is hypothetical; see the remark on fig. 1. 



Fig. 3. Section of the iron sand, and limestone beds, in the parish of Framfield; the strata 

 have not been perforated to a sufficient depth to shew their relative position, p. 32. 



TABLET IV. 



Fig. 1. Vertical section of Brighton cliffs, p. 277. 

 Fig. 2. Cliffs east of Brighton, p. 279. 



Fig. 3. Fissures in the chalk at Falmer, filled with clay, and the deti-itus of the breccia of 

 the Plastic clay, p. 151. 



* Limestone, sinular to that of Framfield, and Ashburnham, and enclosing the same kind of testacesp, may 

 be observed alternating with Iron sand, in a quarry near Winchelsea. 



