210 QUARTERLY JOURNAL. 



right side is a partial socket, as if another tooth had once been there. 

 It appears that the young animals had these two teeth, but lost them 

 at a later period of Hfe, as the remains of the socket only are found 

 in skeletons of old animals. 



The teeth are, in this skeleton, two in each row, making eight in 

 all. The front tooth measures three by four and a half inches ; the 

 back tooth, three and a half by seven and a half inches. Like the 

 elephant, this animal probably changed its teeth during its growth; 

 at each change, the back teeth crowding forward, till they eventually 

 crowded out the front ones. 



The length of the head, from the occiput to the front of the inter- 

 maxillary bones, is four feet and one inch, and weighed, with the 

 tusks, 694 pounds. 



There are seven bones of the neck, nineteen of the back and three 

 of the loins. The first seven bones of the back are characterized 

 by very long spinous processes, the longest measuring two feet. 

 From the third they diminish in length very rapidly to the eleventh, 

 when they are almost lost. The bones of the neck are much more 

 upright than in the elephant, giving to the animal the appearance of 

 carrying a high head. Atlas, 3 ft. 8 in. in circumference. 



The ribs are forty in number ; twenty on each side, and the 

 longest measures four feet and seven inches. The first and second 

 ribs on the right side appear to have been broken by some accident 

 during the animal's life. During the process of healing, the first rib 

 has formed a bony attachment to the sternum or breast-bone, which 

 is a triangular bone of large size and one foot seven inches long. 

 The last two ribs on the right side have also been united logitudi- 

 nally. The scapula (shoulder-blade) is two feet and ten inches long, 

 and two feet and nine inches wide, having a long and sharp acro- 

 mion process. 



The humerus (shoulder) is three feet and five inches long, 

 three feet and two inches in circumferance at the upper end, and 

 three feet and five inches at the lower. The ulna measures two feet 

 and three inches, from the articulation at the humerus, to where it\ 

 unites with the foot. The olecranon process is seven inches long, 

 and two feet four inches in circumference at the base. The circum' 

 ference of the elbow is three feet nine inches. The radius is small 

 and slender, and crosses from the inside of the anide to the front 

 the elbow. The articulating surface of the elbow is one foot three 

 and a half inches long, and seven and a half inches wide. 



