18G1.] FTSTTKIl BRACKLESnAM BEDS. 77 



only 2 feet 3 iuchcs further in hard clay. If I wore to hazard an 

 opinion, 1 should say that the water was obtained in the London 

 Clay series, and that the Bracklesham Eeds ended at a depth of 

 201 feet 9 inches. The green sand (Adth water), 20 feet 6 inches 

 thick, woidd then belong to the Lower Bag-shot 8ands. There is a 

 remai'kable thinning-out of the lower fossiliferous beds here, as 

 compared witli tlie section at \Vhitc Cliff Bay ; while beneath them 

 the unfossiliferoiis laminated clays and sands continue of nearly the 

 same thickness. We have an interval from tii. to iv. at White 

 Cliff Bay, 198 feet; at Biu-y Cross, 47 feet: interval from iv. to 

 I. at AMlite Cliff Bay, 119 feet ; at Bury Cross, 118 feet *. 



Fort Gomer. — At the new works at Fort Gomer, south of Bury 

 Cross, are to be seen the beds on the horizon of xvii. near the 

 upper part of the series. Nummidina varioJaria and Pecien corneus 

 occur in blue sandy clay. 



Rowner Fort. — At Kowner Fort, now in process of construction, 

 some sand from a shallow well contained comminuted shells, among 

 which TurriteUa imbricataria was disting-uishable, but no traces of 

 Xummulites. There was not sufficient evidence to identify the bed. 



Stuhhhujton. — The next locality to which I refer is Stubbington. 

 Tliis is a place of some interest, having long been knovni for its 

 Eocene fossils ; but they were, I believe, formerly collected from 

 only one or two beds in the upper part of the series. I was myself 

 the fortunate iinder, in March 1856, of the very rich deposit of 

 fossils on the horizon of ix./. 



The beds here, as at Bracklesham, do not admit of convenient 

 measurement. They are seen, at intervals, beneath gravel at the 

 ba.se of the low cliffs west of Brown Down. But a more complete 

 section may be obtained by noticing their outcrop at low water. 

 The dip of the beds is nearly S. by AV. ; their dip in the direction of 

 the shore is but slight, and consecjuently we continue a long distance 

 upon the same bed. The proportion of the thickness to this distance 

 is nearly uniform for all the beds, because the shore is very nearly 

 straight. 



Commencing from a point in a line with two large boulders on 

 the shore, and opposite a hut upon the cliff, near the eastern end 

 of Stokes Bay, and going westward, we have the following descend- 

 ing section f. 



Inickness. 

 Paoes. ft. in. 



f Shingle and sand (beds not exposed) 130 



j Sunk forest (Pleistocene) CO 



I Beds not sccji 46 



A. -^21 Light-grcenish-blue sandy clay, laminated 219 14 6 



IBracklcahfun Beds : — 

 20 (a) Light-greenish sandy clay, containing rather abun- 



* Quart. Joum. Geol. Soc. vol. xvi, p. 448. 



t By measuring the dip of the nodules in the cliff, I obtained a dip of about 

 3J feet in CA paces ; and by comparing the thickness of the Numniulitic bed 

 with its extension on the shore, we got a dip of 4^ feet in 74 paces; taking the 

 mean of these, we find the factor wliicli, mulliplied by the exfcnsion in paces, 

 will give the tliickness of the beds in feet, to be approximately OfJO. 



