Geological Society. 49 



The paper then describes some granite veins in the same neigh- 

 bourhood, which rise from the central granite near the farm called 

 Wastdale Head, and penetrate the giauwacke slate. Near the 

 junction of the granite and slate, the latter puts on the character of 

 the killas of Cornwall. The change extends to some distance, but 

 gradually disappears, and the slate then returns to its common 

 type, and contains organic remains. The author considers these 

 facts as proving (in this instance) the posterior origin of the granite, 

 and the protrusion of the granite veins into the preexisting slate 

 rocks. 



A paper was then read entitled " A Notice respecting some 

 Points in the Section of the Coast near St. Leonard's and Hastings," 

 by William Henry Fitton, M.D., V.P.G.S. &c. 



The improvements in the neighbourhood of St. Leonard's which 

 have rendered it necessary to cut down the face of the cliffs from 

 Hastings to that place, have brought to light several portions of 

 the strata, previously concealed. The object of the present paper 

 is to describe some of these details; and a great part of it, conse- 

 quently, is not susceptible of abridgement. 



Several rocky ledges run out obliquely from the shore, both on 

 the east and west of Hastings ; these are analogous to the ledges 

 which occur in the equivalent of the Hastings Sands, on the south 

 coast of the Isle of Wight; and for the greater part consist of con- 

 cretional grit, including especially fresh-water shells, of the ge- 

 nera Cyclas, Paludina, and Unio; others again are composed of a 

 pisolitic sand-rock, inclosing numerous grains of reddish brown 

 oxide of iron, which is found all along the shore from the Lover's 

 Seat to the west of Bopeep. With the rocks above mentioned beds 

 are found to alternate, — of sand-rock varying in colour and degrees 

 of hardness, clay, and fuller's-earth. In proceeding westward 

 from Hastings, the strata are observed to decline gradually towards 

 the west as far as the gate of St. Leonard's ; but at a very short 

 distance beyond that point, they rise towards the west, and the 

 same strata are found to recur, but in a reversed order. This 

 appearance, which might at first be ascribed to some derangement, 

 is produced, in fact, by a slight projection of the shore at the 

 eastern point of the Marina at St. Leonard's, where the range of 

 the beds coincides with the direction of the coast ; the strata which 

 come up from the sea at a small angle towards the interior, and 

 are continued in the cliffs on the east and west, thus rising in dif- 

 ferent directions. 



Among the strata which have recently been disclosed in the 

 cliffs, a continuation of the remarkable group of the White-rock is 

 one of the most conspicuous, and can be traced from its emer- 

 gence in the sea under the White-rock to the cliff within the 

 New Brewery. Beneath, at an interval of about 30 feet, the \ull- 

 known bed of white sand-rock which forms the cliff' of the Castle 

 Hill at Hastings, rises on the shore, and being continued to the 

 north-east, may be traced in the upper part of the Fast cliff, and 

 thence nearly to the summit of Fairligbt Down. 



The group of the White rock contains a subordinate stratum, in 

 Third Scries. Vol. 4. No. 19. Jan. IS.'. I. II 



