GEOLOGICAL POSITION OF EOLITHS 167 
since Pala;olithic times. If, however, we go back beyond the 
Palaeolithic period, we may justly assume that the implements 
of those earlier times will show not only ruder design, but also 
evidence of the conditions through which they have passed, and 
this claim is readily admitted by the objectors to Eoliths. In 
other words, we must try to establish an intermediate group 
connecting the typical Eoliths and the undoubted Palaeolithic 
implements. This type is apparently present in the Shoreham 
district, as there occur implements showing very rude chipping 
but little flaking, and marked by scratches which may be the 
eflfect of glaciation. The implements referred to are not stained, 
or only slightly so, and occur almost exclusively at or about the 
450-feet level : when they occur at lower levels, their position is 
then obviously due to the action of rivers and torrents in eroding 
their channels. On broad grounds it may be laid down that the 
higher the elevation, the older the implements; and therefore 
when the summits of the hills are reached we find that in the 
material there deposited only the rudest types exist. These 
remarks apply broadly fo the surface finds, but when sections 
are made then the rude types are found unassociated with any 
implement of true Palaeolithic type. It is claimed that such an 
association of types exists in the pit dug at Ash ; but this we may 
state, that Ash is some distance north of the escarpment, and 
therefore within the influence of later drainage from the higher 
land near the escarpment. If we require plateau evidence, it is 
obvious that only pits sunk on the highest part of the plateau 
can be admitted in deciding the geological position of Eoliths. 
But even admitting the “ Palaeolithic implements found with 
plateau specimens," it is hard to grasp their importance as 
detracting from the age of Eoliths, since a gravel deposit at 
lower levels only illustrates the latest time at which the river 
ran, its materials being gathered from higher, and therefore 
earlier, ground. 
Thus the gravel at Green Street Green contains both Eoliths 
and early Drift types, a fact only illustrating that the Eoliths 
are present as derivatives, and that the river ceased to denude 
the land at an early period in Palaeolithic times. 
That the Eolithic types are on evolutionary grounds the 
forerunners of the Palaeolithic forms is, of course, undoubted ; 
but on the same grounds they are also the forerunners of 
Neolithic types. What we maintain is that geologically. Eoliths 
are separated from Palaeolithic types by an immensity of time, 
and that between them comes an intermediate type, difficult 
indeed to prove, as all times of transition are necessarily short. 
These intermediate types show distinct attempts at flaking, 
wherein they approach Palaeolithic implements, whilst still 
retaining the Eolithic edge-hacking ; and by their scratched 
surfaces show signs of the severe usage they have undergone, 
in which they approach the condition of the plateau group. 
That the scratching and grinding processes took place after the 
