20 6 The Rev. Mr. Buckland's account of Fossil Teeth and 
cave is any where polished (like the tiger’s den before al- 
luded to), in those parts which must have been the con- 
stant gangway of the hyaenas ; but the universal cover of 
mud by which it is buried, renders it necessary that this 
should be removed, in order to the observation I suggest. 
During the formation of this stalactitic matter, no mud appears 
to have been introduced ; and had there been any in the cave 
at the time whilst the osseous breccia was forming, it would 
either have excluded all access of the stalagmite to the bones, 
or have been mixed and entangled with it in very large pro- 
portions, forming a spongy mass, such as it does at the root 
of the stalagmites that lie on its surface. 
The 3rd period is that at which the mud was introduced 
and the animals extirpated, viz. the period of the deluge. I 
have already stated that the animal remains are found prin- 
cipally in the lower regions of this sediment of mud, which 
appears to have been introduced in a fluid state, so as to en- 
velope the bony fragments then lying on the bottom of the 
cave : and the power of water to introduce such sediments 
is shown by the state of Wokey Hole, and similar ca- 
verns in the Mendip Hills, and Derbyshire, which are subject 
to be filled with water occasionally by heavy land floods. 
The effect of these floods being to leave on the floor, a 
sediment of mud precisely similar to that which covers the 
bones and osseous breccia in the cave of Kirkdale. I have 
also mentioned that there is no alternation of this mud 
with beds of bone or of stalagmite, such as would have oc- 
curred had it been produced by land floods often repeated ; 
once, and once only it appears to have been introduced ; and 
we may probably consider its vehicle to have been the turbid 
