MAN AND THE GLACIAL PERIOD. 



647 



counterparts of each other. The one from Newcomers- 

 town, however, is made from a local flint which occurs in 

 nodules in the "Lower Mercer" limestone, which is situated 

 in the lower part of the coal-measures, and crops out a few 

 miles from there. 



Fig. 169.— Edge view of the preceding. 



The implement has upon it the patina characteristic of 

 the genuine flint implements of great age in the valley of 

 the Somme, and is recognized by Professor Haynes, of 

 Boston, as in itself fullfilling all the requirements looked 

 for in such a discovery. The gravel-pit in which it was 

 found is one which for some years has been resorted to bv 



