REV. R. A. BULLEN, B.A., ON EOLITHIC IMPLEMENTS, 195 
His words are :—“ That there are, even in gravel-walks, 
small flints of analogous shapes, but by no means identical 
with those of the plateau-gravel, is quite true, and some 
approach to their peculiar shapes may occasionally be seen 
elsewhere, but the * Eoliths’ are distinct. Doubtless frost in 
splitting stones can form more or less parallel-sided flakes, 
often concave and thin on one edge, and convex and thick 
on the other, and that the thin edge may be readily modified 
by natural and accidental causes; but the hooked and 
hollow-curved plateau implements have the concave edge 
thick, and intentionally chipped and hammered.”* 
§V. Torrent- or river-action—Many of the eoliths show 
contusions caused by rapidly moving water, but the con- 
tusion is on the chipped surfaces by which man had 
previously converted them into implements. — It has blunted 
and obliterated the originally sharp margins of the parallel 
depressions, which have truncated one another by a series of 
intentional blows round a roughly regular edge; but such 
contusion was not the cause of chipping and is (in all cases 
which I have examined) demonstrably posterior to it in 
point of time. 
It must be remembered that water resists compression 
(that is the principle of the Bramah press, hydraulic jack, 
etc.), and in the collision of flint stones one on another by 
water in violent motion, the water becomes at the same time 
an elastic cushion between them as they are jostled together; 
for the greater the aqueous force that flings them together 
the greater the compression of the water between them, and 
pro rata the weaker the resultant collision. 
However strongly the suggestion has been made, that 
aqueous agencies have produced the chipped or hacked 
edges of these plateau flints, it is a mere assertion; no 
one has yet produced a series of examples, due to known 
aqueous agency, whether fluviatile or marine, actually 
resembling eoliths. 
So far then Sir Joseph Prestwich’s theory of their human 
origin holds the field. 
§ VI. Koliths: their ochreous stain or colour—The stain on 
* Journ. Anthrop. Inst., 1898, p. 53. Mr. W. Cunnington, F.G.S., boldly 
referred the production of the various apparent flakes and chippings 
on the Kentish Eoliths to the influence of successive glacial periods in 
his paper on the “ Non-authenticity of Plateau Implements” (Natural 
Science, vol. xi, No. 69, p. 332). 
0 2 
