﻿ILLUSTRATIONS 



Xlll 



PLEISTOCENE PERIOD 



TAGE 



Pithecanthropus 









Alice B. Woodward 187 



Elasmotherium 









„ ,, . 189 



Mammoth 











191 



Homo Mousteriensis . 











196 



Hippidium 











203 



DiEDICURUS 











204 



Macrauchenia 











206 



DlPROTODON . 











, 208 



TEXT-FIGURES 

 Monobia (p. 9), Morula (p. 10), Blastosphere (p. 10), Gastrula (p. 11). 



