INTRODUCTION 



t- - 



ERRATA 



p. 44 4th line bottom 



Instead o/ highest mountain read height of mountain 



p. 90 lines 7, 8 



Read the occurrence of closely allied species in New- 

 Zealand and in Australia 



p. 118 line 15 



Read Peratherium 



buttalo, none of which occur south of Mexico. He 

 may well ponder over these facts, especially as in the 

 Northern Hemisphere wild cattle, sheep, antelopes 

 and deer live in close proximity to each other. It is 

 common knowledge that before the Glacial epoch, 

 geologically not so very long ago, there lived in 

 England, elephants, rhinoceros, hippopotamus, hyaenas, 

 crocodiles and pelicans, all of which have since with- 

 drawn further south. To understand this does not 



