216 



The workmen came to this cavern by blasting through the solid rock, 

 and at the depth in the rock at which it was met with, the surrounding 

 limestone was everywhere equally strong, and required the same labour 

 to quarrv it : Mr. Whidbey at that time saw no indication of the cavern 

 having had any external communication through the rock in which it 

 was inclosed. See Philosophical Transactions for 1817, 1821 and 1823. 

 Dr. Buckland's opinion of the mode in which the mammalian bones were 

 introduced into the Oreston caverns is cited at p. 19, in connection with 

 the remains of the Wolf, and more especially the specimen No. 92, and 

 to this opinion Mr. Whidbey subsequently saw reason to assent. 



918. A cast of the crown of the third premolar, left side, upper jaw, of a young 

 Rhinoceros tichorhinus . 



The fangs had not begun to be formed when the animal perished. 

 From the bone-cave at Kiihloch. 



Presented by the Earl of Enniskillen, D.C.L. 



Genus Acer other ium, 



919. The second premolar tooth of the right side, lower jaw, of the extinct 



Hornless Rhinoceros (Acerotherium incisivum, Kaup, Rhinoceros inci- 

 sivus, Cuvier). 



From the miocene tertiary deposits at Epplesheim. 



Presented by Dr. Kaup. 



920. The fourth premolar, right side, upper jaw, of the Acerotherium incisivum. 



From the miocene tertiary deposits at Epplesheim. 



Presented by Dr. Kaup. 



92 1 . The antepenultimate molar, right side, lower jaw, of the Acerotherium in- 



cisivum. 



From the miocene tertiary deposits at Epplesheim. 



Presented by Dr. Kaup. 



922. Fragments of a molar tooth of the Acerotherium incisivum, Kaup. 



Presented by Dr. Kaup. 



