574 Analysis of Neltore Copper ores. [Oct. 



process approaches to a grinding surface, with an acute margin at 

 the outer and posterior sides, in the fourth, fifth, and sixth teeth ; 

 and it is of a rather round, tuberculous form, in the seventh tooth. 



The first molar in the under jaw is placed close to the canine tooth 

 of its side; the second is about ^ht of an inch from the first ; the 

 third rather more from the second ; and there is another space 

 between the third and fourth of about 1 t 5 th of an inch : the four last 

 teeth form a continuous row. 



The lower canines being received into pits in the intermaxillary 

 bones, is somewhat like an approach to what takes place in some of 

 the Saurian reptiles ; and indeed, the whole view of the skull of 

 Thylacynus Cynocephalus reminds the casual observer almost as much 

 of a Saurian as of a Mammiferous animal. 



When presented to the Society, the stuffed specimen was, as it is 

 said, in a bad state ; and when the present Curator entered upon his 

 office, there was, owing to no care having been taken of it, nothing 

 to be done, but to take out the bones, to preserve them. This, how- 

 ever, was so far fortunate, as it has led to the discovery of the redl 

 dental system. 



Mr. Grant, who drew up the paper in the " Gleanings in Science," 

 proposed the name of Lycocephalus for this species, apparently not 

 aware that Harris had before named and described it. His mistake 

 as to the number of teeth arose from not having been able to open 

 the mouth far enough to allow him to examine them properly ; and 

 Harris's specimen may have been an old one, and lost a tooth on 

 each side. The Society's specimen was of a middle age, rather 

 young perhaps than otherwise : the bones of the skull being well 

 knit together, though not fixed by bony union. 



It is greatly to be wished, that some friend to the Society would 

 present another specimen. 



VII. — Analysis of Copper Ore from Nellore ; with notice of the Copper 

 Mines at Ajmir and Singhdna. By James Prinsep, Sec. fyc. 



Through the kindness of Mr. C. A. Kerr, 1 have had a further 

 opportunity of examining the produce of the Nellore copper mines, 

 of which cabinet specimens were presented to the Asiatic Society 

 two years ago*, before the formation of the " Indian Copper Mining 

 Company" at Madras, for the purpose of turning to profit the mineral 

 stores of this promising district. 



* See Proceedings of the Asiatic Society, Feb. 1833, in vol. ii. p. 95. 



