INTER-GLACIAL AMERICAN MAN. 567 



description occurs in the text of the same Report in which the flint 

 spear-head shown in fig. 3 is more than once referred to as "the 

 only instance of the occurrence of a drift implement of this mineral.'' 

 But the very fact that in the note above quoted the material is not 

 specified seems to indicate an inadequate appreciation of the sig- 

 nificance of the occurrence of implements of flint in a drift deposit 

 of unstratified gravel and boulders, in which flint is wanting as a 

 natural constituent. 



The flint spear-head, as figured in the Report, cannot fail to attract 

 attention from its obvious correspondence to a familiar type of the 

 drift implements of France and England. But this is deceptive. It 

 may be described as a pointed lanceolate implement presenting a 

 near resemblance to the worked flint, fig. 420, of Mr. Evans' 

 Ancient Stone Implements of the Drift, found at Rampart Hill, 

 Icklingham, Suflblk : or to another (fig. 472) from Milford Hill, 

 Salisbury. Both of these are somewhat more symmetrical ; but 

 the important element of difterence is that of size. The Icklingham 

 implement measures nearly 6 inches in length;' while that of Milford 

 Hill, characterized by Mr. Evans as a " a magnificent specimen," is 

 upwards of 8| inches long. But the reduced scale upon which these 

 and other undoubted examples of the drift implements of Europe are 

 shown is apt to suggest a deceptive correspondence to the Delaware 

 Valley implement, which is figured the full size, i.e., barely 2| inches 

 long. 



But it is still more important to note the relation of the above 

 analogous implements to the character of the English drift in which 

 they were found. Icklingham is in Sufiblk, in the centre of one of 

 the most noted fiint regions of the South of Englaiid, where even 

 now the manufacture of gun-flints is still prosecuted to some extent. 

 Milford Hill is in the vicinity of Salisbury, in Wiltshire, also in a 

 flint-bearing region, where numerous implements of the same type 

 have been recovered both from the gravel and the underlying chalk 

 rubble, where they lay side by side with fragments of flint which 

 retained their original colour. The localities are accordingly such 

 as would encoui'age the search for flint implements, of which they 

 have yielded numerous examples both of palaeolithic and neolithic 

 types. It is altogether difierent with the drift of the Delaware 

 River. It appears to include deposits of gravel, sand, and boulders 

 of glacial origin, varying considerably in mineralogical character; 



