﻿416 Canadian Record of Science. 



changes in climate. The beds immediately reposing on 

 the clay are characterized " by the presence of alder in 

 abundance, of hazel, and yew, as well as by that of 

 numerous flowering plants indicative of a temperate 

 climate very different from that under which the 

 Boulder Clay itself was formed. Above these beds 

 characterized by temperate plants comes a thick and more 

 recent series of strata, in which leaves of the dwarf Arctic 

 willow and birch abound, and which were in all probability 

 deposited under conditions like those of the cold regions 

 of Siberia and North America. 



At a higher level and of more recent date than these — 

 from whicli they are entirely distinct — are the beds 

 containing Paheolithic implements formed in all pro- 

 bability under conditions not essentially different from 

 those of the present day. However this may be, we have 

 now conclusive evidence that the Palaeolithic implements 

 are, in the Eastern Counties of England, of a date 

 long posterior to that of the Great Chalky Boulder Clay. 



It may be said, and said truly, that the implements at 

 Hoxne cannot be shown to belong to the beginning rather 

 than to some later stage of the Palaeolithic Period. The 

 changes, however, that have taken place at Hoxne in the 

 surface configuration of the country prove that the beds 

 containing the implements cannot belong to the close 

 of that period. 



It must, moreover, be remembered that in what are 

 probably the earliest of the Pakeolithic deposits of the 

 Eastern Counties, those at the highest level, near Brandon 

 in Norfolk, where the gravels contain the largest propor- 

 tion of pebbles derived from the Glacial beds, some of the 

 implements themselves have been manufactured from 

 materials not native to the spot but brought from a 

 distance, and derived in all probability either from 

 the Boulder Clay, or from some of the beds associated 

 with it. 



