ARVICOLA AGRESTIS. 207 
ing surface of the three lower molar teeth is given at 4, 
and the jaw a, is figured of the natural size. These speci- 
mens have all the characters of the fossils of the extinet 
Mammalia of the cave, Kent’s Hole, from which they were 
obtained by Mr. Mac Enery; they are now in the British 
Museum. 
A bank covering the foundations of an ancient Roman 
fortification near Cirencester, was pointed out to me by 
Mr. Brown, who has interested himself in the collection of 
the fossils of that neighbourhood, as being remarkable for 
the number of minute jaws and other bones which it con- 
tained: these were chiefly remains of Field-voles, mixed 
with those of Shrews; and, though they do not belong to 
the category of fossils, the fact seems worthy of notice on 
account of the extraordinary abundance in which such bones 
and teeth are occasionally found accumulated in similar 
superficial situations. 
