of a low
hill and 65 feet above the adjacent alluvial flat. It consists of two
crevices between large blocks of limestone in one side of a hollow about
12 feet deep; and which has evidently been widened by water. (Plate 41.)

DESCRIPTION AND VIEW OF THE LARGEST.

We first descended the fissure at the mouth of the large cave, and then
clambered over great rocks until, at 125 feet from the entrance, we found
these inequalities to be covered by a deep bed of dry, reddish dust,
forming an even floor. This red earth lay also in heaps under lateral
crevices, through which it seemed to have been washed down from above. On
digging to a considerable depth at this point, we found a few fragments
of bone, apparently of the kangaroo. At 180 feet from the mouth is the
largest part of the cavern, the breadth being 25 feet and the height
about 50 feet. The floor consisted of the same reddish earth, but a thick
stalagmitic crust extended for a short distance from a gigantic
stalactite at the further end of the cavern. On again digging several
feet deep into the red earth here we met with no lower layer of
stalagmite nor any animal remains.

On a corner of the floor behind the stalactite and nearly under a
vertical fissure we found a heap of dry white dust into which one of the
party sunk to the waist.* (G. Plate 44.)

(*Footnote. The dust when chemically examined by Dr. Turner was found to
consist principally of carbonate of lime with some phosphate of lime and
animal matter. Proceedings of the Geological Society for 1831.)

Passing through an opening to the left of the stalactite we came upon an
abrupt descent into a lower cavern. Having reached the latter with some
difficulty, we found that its floor was about 20 feet below that of the
cavern above. It was equally level and covered to a great but
unascertained depth with the same dry red earth which had been worn down
about five feet in a hollow or rut.

A considerable portion of the farthest part of the floor (at H) was
occupied with white dust or ashes similar to that found in the corner of
the upper floor (at G).

This lower cavern terminated in a nearly vertical fissure which not only
ascended towards the external surface but descended to an unascertained
depth beneath the floor. At about 30 feet below the lowest part of the
cavern it was found to contain water, the surface of which I ascertained
was nearly on a level with that of the river Bell. Having descended by a
ro