390 W. Pengetly— Cavern Exploration in Devonshire, 
descriptions, it will be seen that the Devonshire caverns, to 
which attention has been now directed, belong to two classes, 
—those of Oreston, the Ash-Hole, and Bench being Pissure 
Caves ; whilst those of Yealm Bridge, Windmill Hill at Brix- 
ham, Kent’s Hole, and Ansty’s Cove are Tunnel Caves. 
Windmill Hill and Kent's Hole Caverns have alone been 
satisfactorily explored; and besides them none have yielded 
evidence of the contemporaneity of man with the extinct cave 
mammals. 
Oreston is distinguished as the only known British cavern 
which has yielded remains of Rhinoceros leptorhinus (Quart. 
Journ. Geol. Soc., xxxvi, p. 456). 
Yealm Bridge Cavern, if we may accept Mr. Bellamy’s iden- 
tification in 1885, was the first in this country in which relics 
of glutton were found (South Devon Monthly Museum, vi, pp. 
218-223; see also ‘Nat. Hist. S. Devon,” 1839, p. 89). The 
same species was found in the caves of Somerset and Glamor- 
gan in 1865 (Pleist. Mam., Pal. Soc., pp. xxi, xxii), in Kent's 
Hole in 1869 (Rep. Brit. Assoc., 1869, p. 207), and near Plas 
Heaton, in North Wales, in 1870 (Quart. Jour. Geol. Soc.), 
Xxvil, p. 407). 
Kent’s Hole is the only known British cave which has 
afforded remains of beaver (Rep. Brit. Assoc.. 13869, p. 208), 
and up to the present year the only one in which the remains 
of Macherodus latidens had been met with. Indeed Mr. Mac- 
1st. The lowest known bed in each is composed of materials 
which, while they differ in the two cases, agree in being such as 
