MEGATHERIUM. 



185 



117.— Pelvis and Hind Leg of Megatherium." 



examination having demonstrated a marked difference 

 in the intimate structure of the teeth of the sloths 

 and armadillos, I have ascertained by this mode of in- 

 vestigation that the teeth of the megatherium have the 

 same texture and composition as those of the sloth. And 

 if from identity of dental structure in two different 



