112 



THE GEOLOGIST. 



consequences and proofs, probably, of the treatment it has endured since 

 its deposition. 



Mr. Evans, of Hemel Hempstead, to whom I some time since submitted 

 it, has been so kind as to send me the following opinion respecting it; — 



" I have examined it carefully, and the conclusion to which I arrive is 

 that it does not belong to the ' Drift period,' but that it must be classed 



Flint Implement from between Norwich and Caistor. 



among the implements of the so-called ' Stone period.' The general form 

 is "very much that of the ordinary stone ' celt,' adapted for cutting at the 

 broad end; a portion, however, of the edge has been broken or worn away. 

 I am not sure whether there are not some traces of its having been ground 

 on some parts of its surface. 



"Judging from the appearance, I should say that the 'celt' had been 

 lying upon or near the surface for a considerable time, in rather a sandy 

 soil. It seems to be altered superficially to a considerable depth, and the 

 numerous rusty marks upon it testify to its having frequently been brought 

 into contact with the plough and harrow, whose rude assaults its tough 

 constitution has enabled it to withstand."* 



* Extract of aletter from John Evans, Esq., F.S.A., F.G.S., June 18th, 1862. 



