REV. R. A. BULLEN, B.A., ON EOLITHIC IMPLEMENTS. 207 
perhaps tailing down the slopes of uplands by slips, slides, 
and slushings, probably by more than one stage, after its 
formation; or, during a succeeding age, the sea cutting 
away the lessening dome, or torrents scoring the hill-sides, 
removed the more or less extensive deposits of ferruginous 
gravel, with the rude implements left upon it, and spread 
out the much worn relics on the slopes of the chalk below. 
Here they are now found on the isolated plateau; and they 
le on the ‘red-clay-with-flints,’ that had been in process of 
formation previously, for ages, by the gradual solution of 
the chalk below, and the settlement of argillaceous and 
sandy matter from the overlying and gradually disappearing 
Tertiaries. This was coextensive with the chalk-surface, 
and on it lies some of the transported ochreous gravel, 
together with Tertiary pebbles, less worn flint stones, and 
some débris of the Lower Greensand, which the wave-line 
had then reached. The presence of chert fragments from the 
Lower Greensand proves that the current of driftage (or the 
tailing of the gravel) must have passed over the outcrop of 
the Lower Greensand, and therefore oe from south. to 
north, on a continuous surface (see Fig. 
“7, Subsequently the outlying ie (now the plateau 
above referred to, sloping from an elevation of about 800 feet 
on the south to 400 feet and less on the north) was cut off 
by denudation in the Glacial period from the remaining 
uplands of the once lofty range, the Weald-clay Valley 
lying below the escarpment of the L.G.S. at the foot of the 
siege dome, and the Holmesdale of Gault Valley at the 
foot of the chalk escarpment (see Fig. 1). 
“The Diestian or Lenham beds were formed in the early 
Pliocene period, and the denudation probably began directly 
afterwards, at about the time of the Red or the Chillesford 
Crag, in late Phocene or Post-Pliocene times; and as the old 
ferruginous gravel had not only been formed but had been 
brought to a lower level before that time, it must be regarded 
as of pre-Glacial age. 
“A similar series of occurrences and geological results 
evidently took place on the south side of the old Wealden 
uplands, giving origin to the brown-coated rude implements. 
at Friston, near Eastbourne, in Sussex.” 
As the Kentish chalk plateau is the classic ground whence 
the first specimens of eoliths were obtained, it has been 
necessary to give the geological evidence for their antiquity 
im extenso, 
