128 



ON THE FOSSIL CAMEL 



Comparative dimensions of the ultimate or third permanent molar in the 

 upper jaw of the Fossil and of the existing Camel. 



Dimension. 



Existing 



HlSSAR. 



Fossil 1st. 



Fossil 2d. 



Fossil 3d. 



Inch. 



Metre. 



Inch. 



Metre. 



Inch. 



Metre. 



Inch. 



Metre. 



Length on its antero-posterior \ 

 Breadth on its greatest lateral) 



1.75 

 1.00 



.044 



.02-5 



1.90 

 1.35 



.049 



.034 



2.00 

 1.25 



.050 

 .032 



2.00 

 1.20 



.050 

 .030 



Of the vertebral column we possess a very perfect atlas with part of the 

 axis attached to it. — The form is precisely that of the corresponding vertebra 

 of the existing Camel, with the exception of an increased development to 

 the ridge on the lower side, and a consequent increase of depression of the 

 lateral surfaces in which the arterial foramina are situated. The shortness 

 of the wings and the conical form of the atlas correspond with that of the 

 existing Camel. 



Of the axis, we have only a mutilated specimen, the posterior portion 

 is altogether wanting, but the remainder is similar to that of the present 

 Camel. 



We possess a number of the lower extremities of both the humerus, 

 and the radius and ulna; some of them in connected joints, others sepa- 

 rate ; but we have not been able to detect amongst the numerous fragments 

 in our possession, the connecting pieces by which the bone in its whole 

 length could be established. We see no difference whatever in these frag- 

 ments, and in their articulating ends from those of the existing animal. 

 The anchylosis of the radius and ulna is as complete ; the surfaces for 

 the articulation of the scaphoid and cuneiform bones as flat and unmarked 

 by a hollow ; and the lower extremity of the ulna is as destitute of an 



