Page:Transactions of the Geological Society, 1st series, vol. 2.djvu/193

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183
Mr. Webster on the Strata lying over the Chalk.
e, Greenish yellow sand.
f, Yellow sand with ferruginous masses.
g, Greenish sand, like e.
h, Yellow, white, and greenish sand.
i, Whitish sand, with thin stripes of clay.
k, White and yellow sand.
l, Light green sand.
m, Ferruginous sand stone.
n, Yellow sand with a few red stripes.
Next to this, and in the middle of the bay, is a very numerous succession of beds, which contain a large proportion of pipe-clay of various colours, white, yellow, grey, and blackish. These alternate with beautifully coloured sands. The clay is sometimes in beds several feet in thickness, without any admixture, and sometimes in laminæ not a quarter of an inch thick with sand between them. They are generally as follows:
o, Blackish clay with stripes of white sand.
p, Sand intensely yellow.
q, Very white sand. In the middle of this there is a layer of small siliceous nodules, quite white, easily frangible, and of an earthy texture; they are water-worn, and seem to have been derived from decomposed flints.
r, Sand of a crimson colour.
s, Pipe clay with sand stripes. Here it runs into the sea, and may be traced across the beach.
t, Yellow sand with some crimson.
u, Pipe clay, white and black, with stripes of sand. In the middle there are three beds of a sort of wood coal, the vegetable origin of which is distinctly pointed out by the