at "Oakhill Quarry," Epping Forest. 235
Beds. In it is a band of sandy ironstone, and it also contains
some black traces, probably lignite. Next is a band of sand
(g), orange and white, containing traces of casts of organic
remains, with ironstone concretions, the thickness only one
or two inches. Above it is a mottled grey reddish and fawn-
coloured clay (f), slightly sandy, 12 feet in thickness, also
with traces of lignite. Next comes a band of two or three
inches of greenish sand (e), and then a band of greenish
pipeclay (d) two inches thick. It is this band which throws
out the water from the beds above. Above this is a reddish
yellow clayey sand (c) 8 feet 6 inches thick, succeeded by
4 feet of sandy loam (a), with pebbles and subangular flints.
This appears to be composed of wash from the beds above,
and is derived from the Bagshot Beds, and probably contains
some of the flints from the glacial gravels. These beds
evidently very closely approached the Bagshot Sands, which
have been denuded off them, unless the bed (c) be considered
a remnant of them, which I incline to think is the case—the
band (d) throwing out the water, and being the distinguishing
line between the sands and the clays. The sands are, how-
ever, well exposed in the adjacent brickfield, a little to the
west. Fig. 3 explains the relative position of the two sections.
In it there still remains the capping of light yellow siliceous
sand which has been denuded from the other beds exposed in
the quarry. The clay beds underneath have not been worked
in the brickfield. Adjacent to the sands, and a little to the