36S 



MAN AND THE GLACIAL PERIOD. 



themselves. The accompanying- woodcut * gives some indica- 

 tion of their appearance, although it is misleading, because 



Fig. 108.— Flint flakes collected by Abbe Bourgeois from Miocene strata 

 at Thenay (after Gaudry). Natural size. 



the long figure resembling a flint knife is intended to repre- 

 sent a solid nucleus. None of these objects, however, ought 

 to be called "flints flakes," as very few, if any, flakes show 



* From Le Conte, op. tit., p. 608. The figures are copied from 

 Gaudry, who borrowed them from the article by Bourgeois, Congres 

 Internat. de Bruxelles, 1872, p. 89. pi. ii ; and from his La Question 

 de V Homme Tertiare. Revue des Questions Scientifiques, 1877, p. 15. 



