228 The Rev. Mr. Buckland’s account of Fossil Teeth and 
so rarely brought to light, when we consider the number of 
accidental circumstances that must concur to lead to such an 
event, ist, The existence of caverns is an accidental circum- 
stance in the interior of the rock, of which the external sur- 
face affords no indication, when the mouth is filled with rub- 
bish and overgrown with grass. 2d, The presence of bones 
is another accidental circumstance, though probably not an 
uncommon one in the case of those caves, the mouths of 
which were accessible to the wild beasts that inhabited this 
country in the period immediately preceding the deluge. 
3d, A farther requisite is, the intersection of one of these 
caves in which there happen to be bones, by a third accident, 
viz. the working of a stone quarry by workmen who have 
sufficient curiosity or intelligence to notice and speak of 
what they find, and this to persons who may be willing or 
able to appreciate, and give publicity to the discovery. The 
necessary concurrence of all these contingencies renders it 
probable, that however great may be the number of subter- 
raneous caverns, in an inland country, very few of them will 
ever be discovered, or if discovered, be duly appreciated. 
Those I have mentioned in Devon, Somerset, Derby and Gla- 
morganshire, were all laid open by the accidental operations 
of a quarry or mine. 
May 24, 1822. I have this day received the entire lower jaw of an hyxna from 
Lawford, near Rugby, in Warwickshire. It was found by Andrew Bloxam, Esq. 
in the same diluvial clay and gravel with the bones of elephant and rhinoceros. 
This is the first instance of the remains of hyaena being noticed in the diluvium of 
England. The animal must have perished by the same catastrophe which extirpated 
the hyaenas, and closed the den at Kirkdale, and which swept together the remains of 
elephant, rhinoceros and hyaena in the diluvian gravel of the Continent. The sup- 
port which this recent discovery gives to my arguments on the cave in Yorkshire, 
is too obvious to require pointing out. 
