DESCRIPTION OF THE PLATES, 



PLATE XVII. 



Fig. 1. A fossil crab from Shepey. 



2. Insects in stone from Papenheim. 

 3. 



4. 



Insects on coal-slate, as figured by Lhwydd. 



ins 



1 



5. 

 6. 



7. A fossil crab from Shepey. 



8. A fossil shrimp from Anspach. 



9. The impression of a fossil, the analogue of which is entirely unknown. 



10. The claw of a crab from Maestricht. 



11. An extended trilobite from Dudley. 



12. A fossil crab from the East Indies. 



13. A trilobite from Llanelly. b. its inner surface. 



14. A contracted trilobite from^Dudley. a. the eye enlarged. 



15. The remains of some large unknown insect. 



1 6. Another species of trilobite. 



17. Another species with a caudal process. 



18. Another species imbedded in ironstone. 



19. The remains of an unknown insect from Dudley. 



PLATE XVIII. 



Fig. 1. A fossil body resembling part of a tortoise from Gloucestershire. 



2. The inferior part of a fossil tortoise from Shepey. 



3. The fossil head of a tortoise from Shepey. 



4. A fossil shell from the hard chalk of Sussex. 



5. 1 Fossil Vertebrae of Crocodiles from Cuvier, showing the existence of two distinct 



6. j fossil species in France. 



7. A sketch of the fossil lower jaw of a crocodile from Les Annales du Museum. 



8. One of the vertebrae of the tail of the fossil animal of Maestricht. 



9. A single scale of a fish with its processes of attachment. 



