PLATE XXI. 



Yi'V 



(I) 



A. 



(2) 



Tkacks of, a, Hedgehog, (i) left fore, and (2) left hind, foot (artificial imprint, life size) ; 

 B, Irish Hare (left hind foot, natural imprint, reduced in size), Kilmanock, igio, 

 showing the whole length of foot placed on the ground. 



