538 PROCEEDINGS OF THE GEOLOGICAL SOCIETY. [June 8, 
beach-rolling, it would seem that the implements are derived from 
the white gravel. At Bournemouth also they are generally white, 
so that it would appear that on the Hampshire coast.the implements 
lie near the top of the gravel, and not, as is generally the case, near 
the base. 
TT. Tun Istz or Wicent. 
The general features of the Isle of Wight are well known. A 
chalk range running east and west, and attaining an elevation of 
nearly 700 feet, divides the island into two nearly equal parts, and 
is traversed by three river-valleys, at Freshwater, at Newport, and 
at Brading. More than three quarters of the island is draimed by 
the rivers thus flowing northward to the Solent and Spithead. 
(a) In the northern part of the island the flat-topped hills are 
capped with flint-gravel at from 100 to 300 feet above the sea; and 
though the evidences of a once continuous gravel-covered tableland 
are not so plain as on the mainland, section No. 10, from St. George’s 
Down to Norris, shows how the gravel covering the hills coincides 
with a plain having a uniform slope towards the north. Detached 
patches of similar gravel on Hempstead Cliff, 200 feet, and on Hea- 
don Hill, 390 feet above the sea, may also be looked upon as rem- 
nants of a tableland comparable to that on the mainland, but sloping 
northwards. 
The gravel differs but little from that on the mainland. It con- 
tains, however, besides chalk-flints and tertiary pebbles, Upper- 
Greensand chert and materials from the Lower-Greensand beds. In 
the gravel on the cliff near Egypt, to the west of Cowes, at about 
130 feet above the sea, I found a large liver-coloured pebble evidently 
derived from the New Red Conglomerate beds. This, with the white 
quartz and granitic pebbles already noticed as occurring in the gra= 
vel at Lymington and on Poole Heath, establishes a connexion with 
country far to the westward, which is worthy of notice. 
As on the mainland, neither shells nor bones of any sort have been 
found in this gravel, though the valley-gravels have afforded mam- 
malian remains in some abundance; Mr. EK. P. Wilkins, of Newport, 
records* the discovery in the gravels of the Medina valley of teeth 
and bones of the mammoth, rhinoceros, horse, ox, deer, and hog. 
(6) To the south of the chalk range there are gravels which, 
though lying at considerable elevations, do not appear to be frag- 
ments of a tabular surface, but rather to be high-level gravels con- 
nected with the rivers which drain the southern part of the island, 
and flow northward through the chalk range. Such is the gravel 
on Blakedown, 270 feet above the sea and 170 feet above the 
adjacent stream, and that at Whitcomb, 260 feet above the sea and 
160 feet above the stream. 
With them may be also classed the deposit of gravel and loam 
which caps the cliffs between Blackgang Chine and Compton Bay. 
* Geology &c. of the Isle of Wight, p. 7. 
