GEOLOGY. 15 
Lewisham Bridge, may be dismissed with the remark that it was 
once of sufficient magnitude to lay down a considerable tract of 
gravel in the neighbourhood of Lee Green. 
The stream which formed the valley along which the North 
Kent Railway passes from Blackheath Village to Lewisham, and 
which we believe continued to flow until the railway was made, 
has left small stretches of water which can be seen in the grounds 
of ‘‘The Cedars,” adjoining the railway. When the building 
estate at Belmont Hill mentioned on page 3 was being laid out 
the sections exposed indicated considerable disturbance, probably 
due to a hill-slide. On the upper portion of the ground next 
Belmont Hill there is an unstratified flood-drift which is shown on 
Plate 2. From it Mr. H. Dixon Hewitt, who, until he went to 
reside in Norfolk, was Registrar of the Catford and District 
Natural History Society, found several flints exhibiting traces of 
PLATE 5. 
working. They are shown in Plate 5. We saw the originals, 
and discussed them fully with Mr. Hewitt at the time, and our 
mutual conclusion was that they were Eoliths of the class first 
found by Mr. B. Harrison, of Ightham, on the Kentish North 
Downs, and brought into prominence by the late Sir Joseph 
Prestwich. 
The stones are greatly abraded, and were probably brought 
by running water from a considerable distance. 
It only remains to refer briefly to surface irregularities of the 
locality bounded by the Ravensbourne and Pool on the east, and 
on the west by the range of London Clay hills extending from 
Peckham to Upper Norwood. A marked feature of this tract is 
the occurrence of numerous small hills of London Clay. No doubt 
it was once part of a wide-spreading plain of that formation. The 
