Page:Transactions of the Geological Society, 1st series, vol. 4.djvu/296

No.		Feet.
8.	Ash coloured sand, slightly micaceous, without pebbles or shells	35
This bed, though below the general Boor of the middle pit, is sunk into from it by deep shafts.
MIDDLE PIT.
4.	Coarse green sand, containing pebbles	5
5.	Thick bed of ferruginous sand, containing flint pebbles	12
6.	Loam and sand, in its upper part cream coloured, and containing nodules of friable marl, in its lower part sandy and iron-shot	4
7.	Three thin beds of clay, of which the upper and lower contain cytherex, and the middle oysters align="right" valign="bottom"	3
UPPER PIT.
8.	Brownish clay containing cytheræ	─
This is the lowest bed sunk into in the upper pit, and is not there penetrated to a depth exceeding one foot. The interval between this and No. 7, which occupies the summit of the middle pit is not exactly ascertained, but cannot be considerable; probably		6
9.	Lead coloured clay, containing impressions of leaves	2
10.	Yellow sand	3
11.	Striped loam and plastic clay, containing a few pyritical casts of shells, and some thin seams of coaly matter	10