REMARKABLE FOSSIL DEPOSITS NEAR BRISTOL, I45 



of its habitation. The error of confounding the Arvicola with the 

 Rat doubtlessly arises from similarity in external appearance, and 

 that the Rat, when occasion requires, is a bold swimmer. 



With the other fossils I found a single tooth of a mammal, the 

 name of which I have not yet been able to determine, but is that 

 of a mammal which has no resemblance to the tooth of an 

 Arvicola. 



