18 _ A. J. Hogg on the Gravels 
and 200 ft. above the highest terrace of the Wandle, thus making 
them rank amongst the oldest yet known. 
When further sections are made in this gravel, and attention 
is given to the search for eoliths, I have little doubt that other 
specimens will be found to confirm those to which I desire 
to direct attention. 
Meanwhile it is well to consider the position of this high-level 
gravel, if it has been derived from the North Downs and Wealden 
area, 
The nearest point where the height of 380 ft. above O. D. is 
reached is the Addington Hills, nearly three and a half miles 
distant, the intervening valley having been cut out to a depth of 
about 250 ft., as the lowest point between Norwood and Addington 
Hills is about 125 ft. above O. D., whilst towards Beckenham 
is a few feet less. We have therefore to allow time for the 
intervening valley of three to four miles in width, to be eroded to 
a depth of 250 ft., if this gravel has been derived from the south. 
I would refrain from theorising upon the apparent absence of 
other rocks than flint in this particular section until this is 
further confirmed, but the brown-stained subangular flints and 
implements certainly seem to point to the southern origin of 
this gravel. 
T am glad to know that Mr. Hogg, to whom I mentioned this 
section whilst the works were in progress, has independently 
examined the gravel, and found worked flints which corroborate 
the finds I have myself obtained. 
4,.—Tnr GravEts or SoutaH Norwoop Hit. 
By A. J. Hoge. 
(Read May 19th, 1903.) 
Te cutting on South Norwood Hill described by Mr. Robarts, 
so interesting from the discovery of eolithic fiint-implements in. 
an unexpected locality, was also remarkable for the succession of 
beds which it revealed as the hill was ascended. 
I had the advantage of being able to watch the progress of the 
work from day to day, and noted the successive sections as they 
appeared, commencing at a height of about 340 feet O.D., and 
continuing to the top of the hill. 
The beds cut through differed in every few yards, and the 
sections recorded are only some examples of the many changes 
in the series of deposits. 
