PLATE HI. 



1. Helix Lentani, a ^2d Freshwater Formation. 



2. Helix Menardi, in the limestone near Mans ■ 



Second Freshwater Formation. 



3 Oval grain found in the silex at Longjumeau. 



4 Cylindrical, channelled grabs, found in opaque silex at Longjumea, 



The, have no resemblance to any genus now known. 

 5. 6. Small cylindrical stems, with a channel in the centre, and divdedbj 



transverse partitions. 

 7 A body in the form of a dale, with sinuous channels. 

 8. The ear of a plant (which may be compared to certam species of Paspa- 

 lumj found in the silex at Longjumeau. 



9. Jrgonaulites hevis. 



10. Vaginella depressa- 

 i|, 12. Orbulites. 



)3. Cristellaria 



14, jmmonaceratiles lamarckii, l-3d. s. siphon. 

 15 Ellipsoliles compressus. 

 16. rollonles vesicularis. 

 1". Arethusa corymbosa. 



18. Baculitcs verlebralis. Monti. 



19. Conularia quadrisulcata. 



20. ■ • teres. % 

 .)[ quadrisulcata. 



22. Telebois annulalus. 



23. Tiranites gigas. 



