URSUS 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 
speleus, but have a shorter and broader crown and smaller 
fangs, agreeing in these characters with the Ursus priscus. 
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. 
Runton Gap. 
x =e oa © Drift. 
Chalk. Chalk. 
a. Black earth with shells. 
b. Reddish sand. 
c. Norwich crag in patches. 
, Freshwater. 
