7 
a 
tte i Vien el ee ee 
Norwood, and associated Folithic Implements. 17 
principally stained brown, but containing no other rocks what- 
ever ; neither quartz pebbles, quartzites, lower greensand cherts, 
ragstone, or ironstone. 
From Grange Hill to the corner by the church the section was 
of much the same character as that detailed above, except that 
the gravels became of a brighter yellow. 
There were some patches which were of a greyish pinkish 
colour, but these I considered had been disturbed or discoloured 
by gas, and of them I have taken no notice. 
The gravel, where passed through, always remained at the 
bottom of the trench; in no case was the underlying clay 
exposed, so that the depth of the bed was not ascertained, but 
from the way the gravel held the water after rain, although on 
the slope of the hill, I think the gravel was of little depth below 
the trench. 
As to the materials composing the gravel, these appeared to be 
different to those noted by Prestwich at West-Ho Hill, as I could 
find none of the ‘10 per cent. of subangular fragments of chert 
and ragstone,”’ or any quartzite or quartz pebbles. 
The chalky character of the gravel in some patches, however, 
gave a strong indication that it had come from the chalk on the 
south, and was not an old Thames gravel, 7. e. had not come from 
the west. 
The pebbles and subangular flints were usually embedded in 
such a very adhesive clayey matrix that it is quite possible that 
other rocks may have been present; it was very difficult to 
ascertain what the stones were until the clay was removed, and 
perhaps, had the works been left open long enough for the rain to 
have more thoroughly removed the clay from the stones, other 
materials besides flint might have been recognized. 
There was, however, nu doubt about the brown-stained sub- 
angular flints, some of which had the original crust entirely 
removed, whilst others had a whitish erust in parts, the re- 
mainder being stained brown. 
’ I carefully examined these and all subangular flints for traces 
of human workmanship or use, but those not stained brown 
gave no indication of either; but I have placed upon the table 
‘some specimens of the brown-stained flints, which in my opinion 
give undoubted evidence of chipping by design, rude as itis, and 
one specimen which, though it has been subsequently broken, 
gives signs of use. This, moreover, is a common form of eolith, 
and not much rolled. 
Whatever doubt may be thrown upon the age of rude imple- 
ments from the surface on the escarpment of the downs or else- 
where, there is no doubt of those upon the table having been 
taken from undisturbed gravel at a height of 850 ft. above O. D. 
Cc 
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