120 



Megatherium of Georgia 



are incased four teeth in as 

 many particular sockets, which 

 incline slightly backwards. 



From the first molar to the 

 point P, this border continues 

 diminishing in thickness, and 

 with that of the opposite side, 

 forms a canal very well adapt- 

 ed for receiving the tongue. 



Finally, may be observed 

 in this bone three openings, 

 two of which are external, 

 (Q&R.) The third being 

 on the interior side could not 

 be represented in the figure. 



teeth, which differs somewhat. 

 The fourth molar does indeed 

 incline a little backwards, and 

 perhaps also the third, al- 

 though very slightly. The 

 first and second rather incline 

 forwards at the top, and as 

 they descend, present a strong- 

 curvature backwards, as is 

 seen in the socket restored by 

 the approximation of B and 

 C, as well as in the tooth 

 itself. 



All this coincides perfectly 

 with what is observed in our 

 fragment, C. The canal (d) 

 is well preserved, and its com- 

 mencement may be traced in 

 B. 



This is the only part of M. 

 Bru's description in which it 

 is difficult to find an agree- 

 ment with the Georgia relics. 

 There are indeed three open- 

 ings, but they do not corres- 

 pond in situation with those 

 in M. Bru's figure, and are all 

 external and on one side. This 

 may be partly owing to some 

 want of exactness in the refe- 

 rences, or more probably to 

 the injured state of our speci- 

 men, which at this place has 

 a considerabie portion broken 

 off. 



