472 Correspondence. 
may think a record of these discoveries not unsuited to your pages, 
we forward you a short account for insertion. 
‘Hoyle’s Mouth’ consists of a lofty arched entrance, extending 
about 24 feet into the limestone hill. A tortuous passage, about 
79 feet long, connects this with a small chamber 8 feet in diameter ; 
another narrow passage, about 32 feet in length, leads into a second 
chamber, which is dome-shaped, about 11 feet in diameter, and has a 
funnel-shaped roof. 
In this last-named chamber, which is at present the farthest part 
of the cave accessible, we found, beneath a mass of undisturbed brec- 
cia, the right and left femur, the os innominatum, some vertebree, and 
other portions of the great Cave-bear: these were extracted in a 
very perfect state. Near them were the radius of Hyena spelea, 
and several loose bones and teeth of Fox, Deer, and Ox. In the 
passage about 32 feet from tuis, just where it leaves the small 
chamber above mentioned, were fragments of bones and an incisor 
of Hyena; also, in the breccia, the bones of some large bird, and, 
what is of special interest, a worked flint, apparently of the ‘ barb” 
type. All these latter remains were below the level of the old sta- 
lagmitic floor, which had been partly broken through at this point. 
It is but a fair inference to draw, therefore, that they were contem- 
porary with the animals of the Pleistocene—in fact, of the Mam- 
moth Period. 
It is worthy of remark, that there is evidence of the entrance 
of the sea at two distinct periods into the interior, as the bones 
in the last chamber were accompanied by rolled pebbles of various 
rocks; and on the sides of the first passage leading from the en- 
trance were deposits of sea-shells—Mytilus, &c.—imbedded in a 
thin coating of stalagmite, exactly in the position in which such 
animals would have lived. 
At the entrance, excavations were made in concert with the Rey. 
G. N. Smith, of Gumpeston, which confirmed in a remarkable man- 
ner the latter gentleman’s previous discoveries relative to the anti- 
quity of Man. Here we turned up a large quantity of worked flints 
of two different types; and in a iayer of soil, which there is every 
reason to believe was perfectly free from previous disturbances, we 
found, in juxtaposition with these flints, an upper molar of Megaceros, 
together with teeth of Ox and Horse. Near this spot Mr. Smith 
had previously found a canine tooth of the great Cave-bear, an 
animal strictly contemporary with the Megaceros. Some of these 
worked stones were not flint, but of a stone not at present traceable 
to this neighbourhood. It appears to be a semi-vitrified trap, or semi- 
obsidian, of a dull green colour, with whitish specks and translucent 
edges, having precisely the same concoidal fracture as flint. 
Though many flint-pebbles can be found on the sea-beaches in the 
neighbourhood, we have failed to discover any pebbles or blocks of 
this description of greenstone, though we have diligently searched 
for them from here to St. David’s Head. 
Finally, remains of Man were not absent; for, avout 40 feet from 
the mouth of the cave, below the level of the stalagmitic floor, and 
