Manchester Memoirs, Vol. Ivii. (191 3), No. 1. 13 



industry of Mr. Harrison has brought together an enor- 

 mous number of flints grouped into three or four t)'pes. 

 The coincidence in shape of many of these is very 

 striking, at least as much so as in the case of the Rostro- 

 carinate flints. Yet no plausible use for them has been 

 suggested. 



The vast majority of the Kent Plateau implements 

 are more or less of the nature oi holloiv scrapers, a form 

 which is only of use in roimding sticks, a work probably 

 not largely needed by a very primitive man ; there is an 

 absence of forms which are adapted for hunting and pre- 

 paring skins, the all-essential business of primitive man. 

 Chellean man seems to have got along very well without 

 hollow scrapers. 



The work of Mr. Hazzledine Warren, L'Abbe Breuil, 

 etc., has, in my judgment, completely discredited the idea 

 that these are of other than natural origin, and I believe 

 that they have now few supporters of importance, or none. 

 The fact that Kentish Plateau types do not commonly 

 occur in any other locality is probably due to the fact 

 that nowhere else do we find suitable gravels rich in the 

 thin tabular flint from which they are all shaped by 

 nature. The resemblance between Mr. Moir's Rostro- 

 carinate flints is not close ; some of them have a sharp 

 anterior ridge ; others are flat in front. Some slope down 

 gradually to the point ; some again drop suddenly so that 

 the keel is nearly vertical. These differences, although 

 just what one would expect if the\- were of natural origin, 

 are such as to throw serious doubt on their being tools, 

 for they would imply adaptation to very different uses, 

 and the whole argument, from resemblance between the 

 members of a scries, turns on the fact that the members 

 of such a series are designed for one particular use. 



Perhaps the strongest evidence in favour of the 



