19^2 
HASTINGS STRATA. 
extremity at Loxwood, to Hastings, where they 
occupy the upper part of the cliffs, as will hereafter 
be particularly mentioned. 
IV jvth Sands, a7id Sandstone . — The blue clay, &c. 
which support the Tilgate beds, are succeeded by, 
a series of arenaceous strata, some of which afford 
a fine, soft, building-stone, which is extensively 
dug at Worth, near Crawley. This sandstone is, 
for the most part, of a white or pale fawn or yellow 
colour, and occasionally contains leaves and stems 
of ferns, and other plants. The Worth sands occur 
in great force at Hastings, occupying the middle 
part of the cliffs. 
3 . ASHBURNIIAM BEDS. 
Alternations of sand, friable sandstone, shale, and 
clay, occur beneath the Worth stone : they are, 
for the most part, highly ferruginous, and enclose 
rich argillaceous iron ore, and large masses of lignite. 
They occupy the base of the cliffs at Hastings, and 
appear in many places in the interior. They are 
succeeded by beds of shelly limestone, alternating 
with shale, and including layers of a fine grit, pre- 
cisely similar to the Tilgate stone ; so much so, that 
specimens from the respective strata could not be 
distinguished from each other. This bed abounds, 
like that of Hastings, with carbonized vegetables 
(ferns) casts of bivalves, and other organic remains. 
The discovery of this bed is important, and the cor- 
rectness of placing it so low in the series miglit have 
