184 Dafijuin, and after Darwin. 



them. This, of course, would give a weak foot, suited 

 to slow progression over marshy ground — which, as 



o 

 U 



1 



V 

 ^ 



c 

 o 



■♦-» 



■« 



in 



O 



O 



00 



d 



we have seen, was no doubt the origin of the mam- 

 malian plantigrade foot. Here, for instance, to all in- 

 tents and purposes, is a similar type of foot, which 



