UBS US PRISCUS. 



85 



the penultimate molars, which, by their much abraded 

 tuberculate surface, indicate an aged individual, are not 

 only smaller than the corresponding teeth in the Ursus 

 spel&us, but have a shorter and broader crown and smaller 

 fangs, agreeing in these characters with the Ursus prisons. 

 Thus the caverns at Oreston, like those at Torquay and 

 Gailenreuth, testify to the coexistence of two species of 

 Bear, both apparently exterminated anterior to the histo- 

 rical period. 



The next section will be devoted to the account of the 

 largest of these species, and to the evidences of its former 

 existence in England. 



The geological relations of the freshwater deposit of 

 eastern Norfolk, in which the jaw of the Ursus spelaus 

 first to be noticed was found, is illustrated in the subjoined 

 vignette, for which I am indebted to the kindness of 

 Charles Lyell, Esq. 



Fig. 27. 

 Kunton Gap. 



Drift. 



Chalk. 



Drift. 



Chalk. 



a. Black earth with shells. ) 



b. Reddish sand. J 



c. Norwich crag in patches. 



Freshwater. 



