270 TROF. J. PKESTWICH OIS" THE EAISED 



The origin of these foreign rocks, which are more numerous and 

 larger at Pagham and Hayling Island, will be discussed farther on. 



(8) Hove and Portslade. — West of Brighton, the liaised Beach 

 falls nearly to the sea-level at Hove, and the Head passes into an 

 ordinary ochreous flint-gravel with brick-earth, overlying a shell- 

 bed.^ In making the main sewer on the road between Brighton 

 and Hove, a section 15 feet deep was exposed, showing : — 



feet 



Brick-earth with a few flints .- 3 



L'nstratified flint-gravel and brown clay 9 



Liglit coloured sand (irregular) 1 



Black carbonaceous clay with indistinct vegetable remains, large 

 worn flints, and fragments of shells (Tellina, Mytilas, &c.j 2 



. The gravel lies in rough furrows running nearly due N. and S., or 

 from the foot of the hills towards the sea. This plain of gravel 

 extends westward for some miles, and sometimes forms a low cliff, 

 a section of which near Southwick shows a mass of chalk-and-flint 

 rubble overlying a thin bed of sand with fragments of shells. Half 

 a mile to the north of this, at the foot of the chalk hills near Port- 

 slade, is a pit of considerable interest. When I saw it in 1879, it 

 presented the following section : — 



Pig. 4. — Section of BricJc-jnt near the Portslade Station. 



feet 

 f Light brown brick-earth with few 



flints 4 



1. Angular flint-and-chalk rubble : 



indents into 2 1 to 3 



2. Chalk-and-flint rubble— ochre- 



ous sand and flints uneven at 



base 4to 6 



3. Unstr.itified chalk -and-flit>t rub- 



ble, with numerous large un- 

 ■{ worn flints : remains of Mam- 



moth and Tichorhine Rhino- 

 ceros occur in the lower part 



of this bed 8 to 10 



j The section ends here a little 



above the base of ^\ the under- 



I lying beds are drawn from 



the foreman's dsscription. 

 I 4. White clay (bed 3 continued). . 2 



1^5. Brownelay .. 12 



Shingle and large flints with Pecten 



and Cardium. (Raised Beach) ... 3 



Cliaik. 



At a depth in the chalk-rubble, according to the foreman of about 



^ Tliis wns described by Sir R. Murchison, Quart. Journ. Geol. Soc. vol. vii. 

 1851) p. 367. 



