a7id other Fossils, foiind 7iear Chatham, 

 " 49 



241 



®®^^J)®^^ 



rt, Crown of mammoth tooth. 

 c, Plate of tooth partly worn. d. Crown. 



b, Plate of tooth completely worn. 



e. Outside of jaw. /, Inside of jaw 



of the crown is 3 in. ; length, from the top of the crown to the 

 extremity of the radical processes, 4^ in. The plates are four- 

 teen in number, and are perfectly divided from each other by 

 the crusta petrosa ; one of the front plates is missing ; two of 

 the back plates have not appeared on the crown : the thick- 

 ness of the plates is three tenths of an inch ; the crusta petrosa 

 is of the same thickness, and was in nearly the same state as 

 the preceding two. (For the specific difference in the teeth 

 see ^, c.) 



4. A number of loose plates of teeth of the above de- 

 scription. 



5. Bones. The lower articulating portion of the radius, 

 with about two thirds of the shaft. Numerous cancellae make 

 up the greater part of the epiphysis of this bone ; and the 

 porous texture of the whole indicates youth. The longest dia- 

 meter of the epiphysis is 6 in. ; the shortest, 4 in. ; circumfe- 

 rence of the shaft at its largest part, 12in. ; at its smallest, 

 9jin.; length of the fragment, lOin. ; supposed entire length 

 of the bone, 1 6 in. 



Portion of a tibia. Its structure is cancellated, and the 

 epiphyses are broken away. Length of this fragment, 8 in. ; 

 the entire breadth was probably not less than 22 in. ; circum- 

 ference at the largest part, 10 in.; at the smallest, 1\m, 

 There is no cavity for marrow, its place being occupied by 

 cancellae. 



Portions of vertebrae, heads of ribs, the scapulae, and heads 

 of the greater limb bones. These are all so much broken as 

 to prevent their appropriation to any one in particular. 



Three of the bones of the foot, the articulating surfaces 

 much worn and broken. 



6. Fragments of the tusks. One of them measures 12 in. 

 Vol. IV. —No. 19. R 



