at “ Oakhill QuarryEpping 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 (/), 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 
Fry. 3 
■as ... 
Section showing relative position of the Oakhill Quarry and Brickfield. 
yellow clayey sand (c) 3 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 Bagsliot 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 
