Bones discovered in a cave at Kirkdale , in Yorkshire. 213 
Down : these are not rolled, but have evidently been fractured 
by violence : they are partially incrusted with stalactitic mat- 
ter, and the broken surfaces have also an external coating of 
thin ochreous stalactite, showing the fracture to have been 
ancient ; one specimen, the property of Mr. Miller, displays 
the curious circumstance of a fossil joint of the horse ; it is 
the tarsus joint, in which the astragalus retains its natural 
position between the tibia and os calcis ; these are held toge- 
ther by a stalactitic cement, and were probably left in this 
position by some beast of prey that had gnawed off the defi- 
cient portions of the tibia and os calcis. 
4. A fourth case is that of some bones and molar teeth 
of the elephant, found in another cavity of mountain lime- 
stone at Balleye, near Wirksworth, in Derbyshire, in the 
year 1663 ; one of these teeth is now in the collection of Mr. 
White Watson, of Bakewell. There is, I believe, no detailed 
account of the circumstances under which these remains 
were found, farther than that the cavity was intersected in 
working a lead mine ; they might possibly have been intro- 
duced in the same manner as those at Kirkdale and Crawley 
Rocks. 
5. The fifth and last example which I am acquainted 
with, is that described by SirEvERARD Home and J. Whidby, 
Esq. in the Philosophical Transactions for 1817, as disco- 
vered at Oreston, near Plymouth, by Mr. Whidby, in re- 
moving the entire mass of a hill of transition lime-stone for 
the construction of the Breakwater. This lime-stone is full 
of caverns and fissures, such as may be seen at Stonehouse 
and elsewhere along the edge of the cliffs ; that in which the 
bones were found was fifteen feet wide, twelve high, and 
