4 
The Ancient Fauna of Essex 
Sections exposed during the construction of the Reservoirs of the 
East London Water-works Company , at Walthamstow. 
Fig. 1.— Section at the South-east corner of the Eastern 
Bed No. 1. 
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2 . 
3. 
4. 
5 > 
5. 
Reservoir:— 
Surface soil, 12 inches 
Clayey loam, 18 inches . 
White sliell-marl, 10 inches 
White-coated subangular gravel 
encrusted with lime from super¬ 
imposed shell-marl, 18 inches . 
Rounded and suhangular gravel 2 
stained with oxide of iron 
(actual depth not ascertained). 
Fig. 2.—Section at South-west corner of Reservoir:— 
Bed No. 1. Vegetable mould, 12 inches. 
,, 2. Stiff brown clay, 24 inches . 
,, 3. Shell-marl and marly clay, 12 
to 36 inches. 
,, 4. Stiff dark clay, with wood, 18 
inches . 
,, 5. Peat, 24 inches, lying on. 
,, 6. Thin band of black gravel stained 
by overlying peat, 3 inches. 
,, 7. Clean red gravel, corresponding 
with Bed No. 5 in Fig. 1, 
forming floor of reservoir . 
‘ 2 This gravel (No. 5), which forms the floor of the reservoir, is of very 
considerable thickness. At one spot, where pumping for “puddling” had 
been going on, a hole more than ten feet in depth from the surface of the 
gravel-bed still showed the same gravel with abundance of water. 
