17> A portion of the left ramus of the lower jaw, with part of the last 

 molar tooth of the great Cave Bear, (Ursus spel&us). 



18. The symphysial extremity of the left ramus of the lower jaw of the great 



Cave Bear, with the canine tooth and the socket of the first grinder, 

 showing the characteristic diastema which separates them. 



19. A fragment of the right ramus of the lower jaw of a fossil Bear, in- 



cluding the sockets of the canine and of the first molar. The interspace 

 between these teeth is broken, but it is as long as in the Ursus spelaus. 



20. The left, external incisor of the upper jaw of the Ursus spelaus . 



21 . The left internal incisor of the upper jaw of the Ursus spelaus. 



22. The corresponding tooth of a Bear of equal size. 



From one of the limestone caves at Oreston. Discovered by Mr. 

 Whidbey, in the year 1820. 



Presented by Joseph TPTiidbey, Esq., Civil Engineer. 



23. Two canines of the Cave Bear from the cave at Kuhloch, Saxony. 



Presented by M. Augustus Vautier de Saltikoff'*. 



* The following graphic account of the cave of Kuhloch is from the pen of Dr. Bucklancl : — 

 " It now remains only to speak of the cave of Kuhloch, which is more remarkable than all the rest, 

 as being the only one I have ever seen, excepting that of Kirkdale, in which the animal remains have 

 escaped disturbance by diluvial action ; and the only one also in which I could find the black animal 

 earth, said by other writers to occur so generally, and for which many of them appear to have mis- 

 taken the diluvial sediment in which the bones are so universally imbedded. The only thing at all 

 like it that I could find in any of the other caverns, were fragments of highly decayed bone, which 

 occurred in the loose part of the diluvial sediment in the caves of Schartzfeld and Gailenreuth ; but 

 in the cave of Kuhloch it is far otherwise. It is literally true that in this single cavern (the size and 

 proportions of which are nearly equal to those of the interior of a large church) there are hundreds of 

 cart-loads of black animal dust entirely covering the whole floor, to a depth which must average at 

 least six feet, and which, if we multiply this depth by the length and breadth of the cavern, will be 

 found to exceed 5000 cubic feet. The whole of this mass has been again and again dug over in search 

 of teeth and bones, which it still contains abundantly, though in broken fragments. The state of these 

 is very different from that of the bones we find in any of the other caverns, being of a black, or more 

 properly speaking dark umber colour throughout, and many of them crumbling under the finger into 

 a dark soft powder, resembling mummy powder, and being of the same nature with the black earth in 

 which they are imbedded. The quantity of animal matter accumulated on this floor is the most sur- 

 prising, and the only thing of the kind I ever witnessed ; and many hundred, I may say thousand, in- 



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