THE PLEISTOCENE OR GLACIAL PERIOD. 



509 



that a special burden is thrown upon the geological evidences, and 

 that they must be essentially decisive in themselves. 



BlG. 571. — A group of figures of chipped-stone artefacs, one of which has been regarded 

 as a typical paleolithic implement, front and side view, while the rest were obtained, 

 in three cases, from modern flint-shops of the region in which the supposed paleo- 

 lith was found, while the fourth was traceable directly to the same shops. The 

 discrimination between the paleolith and the rejects is left to the reader. 

 (Holmes.) 



It has been found that by far the majority of the artefacs in the 

 valley gravels are buried in the superficial portions, or in talus slopes, 



