101 
Mr. Tiddeman describes the “ talus” as having fallen from 
the cliff above, and that it continued upwards, so as formerly 
to close the entrance of the cave, which is so far quite cor- 
rect. He afterwards describes the most recent discovery as 
being brought to light below all the “ talus” at the mouth 
of the cave, viz. a bed of tenacious clay with scratched Silu- 
rian and other boulders, resting on the edges of the beds 
containing the remains of the older mammals, and dipping 
outwards at an angle of 40°. Professor Hughes had sug- 
gested to him the possibility of this boulder clay not being 
in its original position, but that it might have fallen from 
the cliff; but Mr. Tiddeman thinks this impossible. He 
“ considers that it seems likely that it is the remnant of the 
moraine (lateral or profonde ) which dammed up the mouth 
of the cave, and prevented anything but fine sediment from 
entering it during the glacial period” (as before cited), and 
it is upon this supposition that the more important one is 
based, viz.; that the remains found recently are of pre- 
glacial age. 
I am sorry again to have to differ from Mr. Tiddeman, 
but I am perfectly convinced he is in error, and that 
there is at present nothing at all resembling the boulder 
drift clay to be seen at the entrance of Victoria Cave. 
I examined the whole section very carefully, and had 
some of the boulders, which are very few, got out, and 
I believe they are fully to be accounted for without any 
need to assume glacial action. They are of black limestone, 
silurian flags, whinstone, and millstone grit, such as occur 
plentifully on the surface of the scar, and where they 
were probably deposited as drift. At the point where the 
animal remains so plentifully occurred is probably an old 
entrance of the cavern, on a much lower level than the 
original entrance when the cave was first discovered. Just 
within this, in a water-worn hollow, the remains occurred 
