SUPPLEMENTARY NOTES ON THE CLEVEDON BONE CAVE AND GRAVELS. 189 
gravels thin out, and the sand and clay are continued under the 
surface soil of the valley. The portion outside the dotted line in the 
diagram has been quarried away near the cave, and the line x y shows 
the inclined cartway from the road to the cave. 
In the lower gravel (a) about 3 feet above the cartway the rodent 
remains occurred. I collected two perfect skulls, and a large number of 
lower jaws, teeth, and long bones ; and these, with specimens of bird 
bones and the small snail shell, I forwarded to Dr. A. Smith Woodward, 
of the Natural History Museum, South Kensington, for identification. 
Other specimens were also sent to Mr. Allen, of the Jermyn Street 
Museum. Dr. Forsyth Major for Dr. A. Smith Woodward, and 
Mr. E. T. Newton for Mr. Allen, kindly examined the specimens, 
and the reports of both experts substantially agree. 
1. — A large number of the jaws belong to 
Microtus yregalis (recorded by Alston and Blackmore as 
Arvicola nivalis). Most of the limb-bones also belonged to 
this small rodent. 
2. — A small number of jaws belong to 
Microtus ratticeps. 
3. — The bird bones are those of a wader, but were not identified. 
Some have been returned to Mr. E. T. Newton for further 
examination. 
4. — Mr. B. B. Woodward identifies the shells as belonging to 
Hygromia rufescens. 
I also obtained, through the kindness of Mr. Coles, portions of the 
lower jaws of Ursus arctos and Canis lupus from the cave earth which 
had been cleared out during my enforced absence in London. 
