Paleolith a)id Ncolitli. — Claypole. 341 
referred to above and many others that were unnoticed in the 
address. 
In another passage Sir John refers to the recent investiga- 
tions of Mr. Reid which prove, he says, "that the well known 
palaeolithic remains at Hoxne in Sufifolk and Hitchin in Hert- 
fordshire are of a later date than the Great Chalky Boulder 
clay of eastern England". He refers to this as showing the 
very recent date, geologically speaking, of these remains. But 
it must be recollected that the great chalky boulder clay is 
not by any means the last of the glacial deposits of England 
and that relics lying on it and therefore of later date may yet 
be interglacial. These almost certainly are so. 
Furthermore m apparently attempting to establish the 
postglacial date of the palseoliths of England Sir John argues 
that some of them have been manufactured from materials that 
were brought into the region by the ice and derived from the 
boulder clay. 
But admitting, as all must do, Sir John's high ability as an 
archaeologist, we may be allowed to make the suggestion 
that if, as stated in the address, these relics at Hoxne, Bran- 
don, etc., lie on the boulder-clay their makers can have had no 
trouble in obtaining the materials from the ground beneath 
their feet. Had they proved of older date the objection might 
have been formidable, but in the circumstances it is merely 
irrelevant. 
It is too late to argue on this subject as if the glacial era 
consisted of a single ice-invasion — one and indivisible — and 
as if such an interval as interglacial time did not exist. Un- 
certain as its details still are there is no room tor doubting the 
reality of the recessions and readvances of the ice and the dis- 
tinction between "preglacial" and "interglacial," which Sir 
John seems to ignore, is of fundamental importance in the 
discussion of the problem of early man. 
It is difficult to read the address without feeling that it is 
in suTbstance an attempt to maintain the postglacial age of all 
the yet known remains of man. The expressions "post-glacial 
or River-drift period" and "the palaeolithic remains of eastern 
England are of a date long posterior to that of the Great 
Chalky Boulder clay" can scarcely carry any other meaning. 
But as already remarked such an attempt in the present state 
