94 TERTIARY SERIES. 
in caverns and fissures of rocks, which formed 
parts of the dry land during the more recent 
portions of the same period. Such are the bones 
collected by Hyaenas, in the caves of Kirkdale, 
Kent's Hole, Lunel, &c. : and the bones of 
Bears in caverns of the limestone rocks of 
central Germany, and the Grotte d'Osselles, 
near Besanc^on. Such also are the bones of the 
osseous breccia, found in fissures of limestone 
rocks on the northern shores of the Mediter- 
ranean, and in similar fissures of limestone at 
Plymouth, and in the Mendip Hills in Somerset. 
These are derived chiefly from herbivora which 
fell into the fissures before they were partially 
filled with the detritus of a violent inundation. 
Fourthly, we have the same remains con- 
tained in deposits of diluvial detritus, dispersed 
over the surface of formations of all ages. 
As I have elsewhere (Reliquiae Diluvianae)* 
* The evidence which I have collected in my Reliquiae Dilu- 
vianse, 1823, shows, that one of the last great physical events 
that have affected the surface of our globe, was a violent inun- 
dation, which overwhelmed great part of the northern hemis- 
phere, and that this event was followed by the sudden disap- 
pearance of a large number of the species of terrestrial qua- 
drupeds, which had inhabited these regions in the period imme- 
diately preceding it. I also venture to apply the name Dilu- 
vium to the superficial beds of gravel, clay, and sand, which 
appear to have been produced by this great irruption of water. 
The description of the facts that form the evidence presented 
in this volume, is kept distinct from the question of the identity 
of the event attested by them, with any deluge recorded in 
