elevated, and the islands joine 

 would mingle. If the region 

 them would be driven to* "the 1 



1 united in the olde 



ancestors of the Moas inhabited New Zeal; 

 eocene period they must have been separated 

 during the whole* of the miocene, and mingle. 

 in the pliocene. In this way — i.e., hv isolatioi 



tion without isolation. As is the ease with 

 animals, the Moas varied greatly and, there 

 nivorous mammals to hold them in cheek, 

 food was abundant, natural selection did not 

 and the intermediate forms were not stric 

 Under such favorable circumstances the co 



The commonest ki 





