168 Dr. FiTTON on the Strata below the Chalk. 



Ft. In. Ft. In. 

 5. Uniform sand, with alternations like those described above, (2. h. and 2. e.). 



Continued nearly to the bottom of the clifF, where the rock is a fine uniform 



white sand-rock, like that of the great cliff at Hastings. 



The distance from the bottom of 5. to the base of the cliff, is about 45 



The total height of tlie cliff being about 65 



The foregoing divisions are evidently arbitrary. In a general view, this section may be said 

 to consist of rather more than 50 feet of thinly stratified sand and clay, with grit in concretions; 

 including, at the upper part, a stratum of darker colour, about 12 feet thick, near the middle of 

 which the remains of Endogenites are found. 



(83.) The rock composed of alternating- layers of sand, and darker sandy 

 clay. No. 2. a. of the preceding list, constitutes a large proportion both of the 

 Weald clay and the Hastings sands ; and a similar alternation of sand and 

 clay of different hues and consistency, extends upwards beyond the limits 

 of the Wealden, into the Lower green-sand. When the masses of the rock 

 are dry, the structure is less conspicuous, but it becomes beautifully appa- 

 rent when they are moistened. The delicacy and distinctness of the folia 

 which are then seen in the cross fracture of the beds, are very remarkable; 

 the separate leaves being frequently as thin as paper, vet perfectly di- 

 stinguishable, from their different alternating shades of greenish grey ; 

 and commonly continued with great regularity for considerable spaces ; 

 a structure clearly indicating very tranquil deposition, such as might be 

 expected in a fluid suspending solid matter divided to extreme minute- 

 ness, yet subject to frequent changes at nearly equal intervals; which 

 may well be conceived to have taken place in the waters of a lake or estuary, 

 at different seasons, or during different conditions of the waters, — if it be 

 going too far in theory to suppose the minuter laminae to have been the pro- 

 duce of successive tides. 



(84.) The continuity of the ledges of rock under the Marina at St. Leo- 

 nard's, with those of the shore under the White Rock, is rendered more pro- 

 bable by the occurrence of the Endogenites erosa in both*. The principal 

 ledge at the former place is very conspicuous on the shore at low water, and 

 is one of the most remarkable geological features on the west of Hastingsf. 

 The following are the beds of which it is composed: 



* I did not myself see this fossil at St. Leonard's ; but Mr. Woodbine Parish, jun., informed 

 me that the specimen represented in fig. 8, Plate XIX., was obtained at the foot of the cliff around 

 the churcl). 



t These prominent ledges are precisely analogous to those which occur in the Hastings sands 

 on the south coast of the Isle of Wight, where several reefs of rocks run out almost directly into 

 the sea, and have obtained separate names from the inhabitants. On the Sussex coast they are less 

 conspicuous, from the more rapid dip towards the sea, and the obliquity of the strike to the line 

 of the coast; but many more such ledges do exist, between the flat near Pevensey and Cliff-end, 

 about midway between Hastings and Winchelsea ; — see hereafter, (95.) 



