568 



THE UNIVERSE. 



to be long considered as an incontestable relic from the 

 hecatomb of the biblical deluge. 



224. Fossil Shells of the Tertiary Epoch. 



1. Gigantic Cerithium. 2. Bichambered Helix. 



3. Turritella imbricata (Lam.). 4. Rostellaria macroptera (Lam.). 



5. Rostellaria columbata (Lam.). 6. Cancellaria cancellata (Bonn.). 



7. Cerithium thiara (Lam.). 



During this phase of creation of which we have sketched 

 the history, new races of molluscs arose on all sides, while 

 the ancient ones perished, to return no more. The ammo- 

 nites, formerly so numerous, disappeared altogether, whilst 



