ON THE BONES OF THE MASTODOJf. 355 



the cabinet of Padua. I am also indebted to M. Faujas for this draw- 

 ing. It is a bright red colour, and its enamel is very glittering. 



Figure 1, plate 26, is the germ of a posterior lower tooth of Simorre, 

 broken in front. (Daubenton, No. mcxi). 



Fig. 6, plate 27, is the same part, not at all worn : it was brought 

 by IVI. de Humboldt from the Giant's Camp ; and fig. 4 is a less con- 

 siderable part, which had begun to be worn. 



Figure 1, plate 28, comes from Simorre, it is the first range of a 

 posterior upper tooth, which has not come out or been worn. 



Some pieces have been too much mutilated to allow of onr determin- 

 ing them with accuracy. Such for instance is the drawin^j of a tooth 

 from the valley of the Arno, broken at both ends (plate 27, fig. 9) ; 

 the tooth with a longitudinal fracture, found in the neighbourhood of 

 Asti, by M. G. A. Deluc, (plate 27. fig. 7) ; that of the cabinet of the 

 Count d'Aris at Padua, found in the Alps, and fractured behind (plate 

 29, fig. 4) ; that of the cabinet of the University of Pisa (plate 29, fig. 

 6), fractured towards the back and the internal edge, but remarkable 

 for more numerous wreaths than any of the others. Nevertheless, all 

 these teeth proceed from the same species, although we may be unable 

 to assign them their place. 



A most interesting piece, and one which serves to prove to what a 

 degree detrition operates in wearing down the teeth of this animal, is 

 the portion of the jaw, represented (plate 28. fig. 5). It has been 

 placed in the King's Museum, and it is believed to have been found in 

 France. The great posterior molar alone is there remaining. Its 

 crown presents no other appearance than a uniform disc of ivory. 

 Even the socket of the anterior molar has disappeared. 



Having thus recounted in their proper places all the jaw-teeth of 

 this secondary species of mastodon, it remains for me to point out 

 and to describe the other bones belonging to it, of which unfortu- 

 nately, we have very few. 



Of the skull we have only two slight portions of the palate, to which 

 I already had occasion to allude, and which, as they are fractured on 

 every side, do not present us with any character. 



The plate preserved in the British Museum, and represented by 

 Camper (Nov. Act. Petrop ii, plate 8), belongs to this species, and not 

 to that of Ohio, as that learned anatomist was led to think. A draw- 

 ing on the natural scale, given me by M. Wiedeman, shows us in the 

 posterior molar, all the shapes of our narrow teeth, which were ren- 

 dered indistinguishable in the engraving. 



Hence, we learn Jjy this specimen that the upper grinders of the 

 narrow-toothed mastodon diverge towards the front like those of the 

 great mastodon of Ohio. 



It is more than probable from analogy, that the species of which I 

 am speaking had tusks similar to those of the species of Ohio ; and 

 ■we have a further confirmation of this in the assurance of Daubenton 

 (Nat. Hist, xi. No. 1011), that he observed some ivory among the 

 ■pecimens sent from the turquoise mines of Simorre. This ivory was^ 

 no doubt, the produce of the same animals, as were the jaw-teeth 

 which yield the turquoises. » 



I myself have found two plates of ivory among the fragments sent 



