190 
HORSTED SAND. 
from twenty to upwards of 600 feet in height. 
Crowborough Hill, which is situated in the interior, 
near Tunbridge Wells, and is the highest point of 
the range, is 804 feet above the level of the sea. 
The anticlinal axis of the strata may be placed 
near Winchelsea, from whence the beds diverge 
towards the North Downs on the one side, and 
towards the South Downs on the other.* 
Horsted Sand. — The Hastings beds, on their 
first emergence from beneath the Weald clay, con- 
sist of sand and friable sandstone of various shades 
of grey, yellow, and ferruginous colour, with 
occasional interspersions of ironstone, and a great 
intermixture of .small linear portions of lignite. 
The sandstone is composed of siliceous sand, 
with particles of mica, held together by a ferru- 
ginous cement, sometimes having a considerable 
proportion of calcareous matter. These beds alter- 
nate with a stiff’ grey loam or marl. The lignite 
is disseminated in minute portions through the grey 
sands, a character by which these upper strata may 
be identified : it appears to have originated from 
the carbonization of plants of the fern tribe. 
These beds are well displayed at Little Hor.sted, 
five miles N. N. E. of Lewes, and form the hill on 
which Horsted church, and the seat of E. Law, 
Esquire, are situated. On the east side of the road 
* In the Isle of Wight, tlie Hastings sands consist of an alternating 
series of beds of sand, more or less abundant in ferruginous matter, 
and containing courses of calcareous grit, with clay mixed with sand ; 
subordinate beds containing fullers’ earth ; wootl, more or less changed ; 
wood-coal, and ironstone: the proportion of the clay to the sands is 
very great. — Ur. Fit ton, Annals of Vhilosophy. 
