1835.] Sub- Himalayan Fossils. 567 



the recent horse : between these, the difference, though obvious, ia 

 less remarkable than in the upper teeth. 



The fossil axis, fig. 5, differs from the recent fig. 6, in its greater 

 proportional breadth, and the greater expansion of its lower 

 articulating surfaces, a. a. 



The fossil femur, (fig. 7,) or rather its upper extremity, has a 

 strong resemblance to the recent fig. 8 ; a slight difference only ap- 

 pearing in the form of the condyle, and the greater flatness in the 

 fossil, of the space between the condyle and trochanter. 



In the lower extremity of the radius, (fig. 9,) in the astragal, 

 (fig. 10,) in the metacarpal and phalanx, (fig. 11,) I am unable to 

 detect any distinctive difference from the corresponding parts in the 

 recent horse. 



To the above collection, I have since been enabled to add further 

 drawings of the fossil teeth of the horse, to aid in determining 

 whether it exhibit any difference from the existing species. 



Figs. 12 to 18, are from specimens in the cabinets of Captain 

 Cautley, with whose permission I send them. Fig. 19, is from a tooth 

 now belonging to Colonel Colvin, and by him intended for presenta- 

 tion to the Asiatic Society, who will, I trust, excuse the liberty I 

 have taken in drawing it, which I would not have done, had our own 

 specimen (No. 1 of my last sheet) been sufficiently perfect to stand 

 for the type of the species found in the upper formation. 



Figs. 12, 13, 14, 15, 16, 17, are from the bed of the Jamna, be- 

 tween Agra and Allahabad. 



Fig. 12, appears to be a right upper molar, perhaps the 3rd: this 

 very perfect specimen has a close resemblance to the teeth of the 

 existing horse ; but the flexures of its enamel are undoubtedly more 

 complicated than those of the specimens of horse and ass, with which 

 I have compared them. The pillar, a, is also much longer, though the 

 proportions of this part are doubtless affected by the degree of at- 

 trition to which the tooth has been subjected, as will be seen more 

 clearly in figs. 13 and 14 ; of which, 



Fig. 1 3, is from the right side of the upper jaw of, apparently, a very 

 old animal ; it may be observed, that the pillar, a, is very much 

 enlarged. 



Fig. 14, is also from the right upper jaw. I suppose it to be a 

 young tooth, of which the flexures of enamel have not completely 

 burst through the original envelope, and have not been worn down to 

 the usual form : in this, as was to be expected, the pillar is small. 



Fig. 15, is the 2rd or 3rd molar of the jaw, right side. 



Fig. 16, a fragment of a similar tooth. 

 4 d 2 



