216 
MIOCENE PERIOD. 
[Ch. XV. 
This subject requires fuller investigation, and it would be 
highly interesting if the Montpellier beds should be found to 
indicate a passage from the fossils of the Miocene type to those 
of the older Pliocene. We are fully prepared for the dis- 
covery of such intermediate links, and we have endeavoured to 
provide a place for them in the classification proposed in the 
fifth chapter *. 
* Page 57. 
