LiTHOLOGY. 



Light coloured yellowisli 

 marls, readily becom- 

 ing disintegrated. 



Brown ferruginous 

 Oolite, with Shelly 

 debris. 



Thin bedded Oolite, 

 perforated by Litho- 

 domi. 



Ferruginous Limestone, 

 with large Oolitic 

 granules, and hydi-ate 

 of iron. 



Sandy marls, with Bra- 

 chiopoda. 



Light coloured compact 

 coralline Limestone, 

 with calcareous spar. 



Thick bedded, brownish 

 compact saccharoid 

 Limestone, traversed 

 by very fossiliferoas 

 marly bands. 



Brown siliceous Lime- 

 stone, enclosing large 

 siliceous nodules 

 (chailles) disposed in 

 parallel beds. 



Ferruginous sands, with 

 Fucoids. 



172 



Stages. 



Stage Bathonien, 

 Caicaires maenexjx. 



Fuller's Earth? 



COtrCHE FEEETJGINEUSE. 



Oolithe inferieure, 



LiTHOPHAGOUS BAN'K. 



Calcaires a 



COLLTEITES ElNGEXS. 



Calcaires 



a Terebratula 



Phlllipsii. 



CALCAIEE a POLYPIEES 



CAXCAIRE a EXTROQTJES 



Calcaire a 

 Pecten personattxs. 



CoucHE a Ftjcoides. 



Leading Fossils. 



Ammonites hullatus, and 

 Ammonites arbustige- 



Fragments of Shells. 



Lithophaga Bajocensis. 



Collyrites ringens and 

 A mmonites ParMnsoni, 

 Amm. Garantianus, 

 Amm. subradiatus. 



Terebratula Phillipsii, 

 T. carinata. Ammo- 

 nites Triiellei, Amm. 

 interruptus, A . Parkin- 

 soni, Rhynchonella 

 plicatella. 



Thecosmilia, Isastrcea, 

 Thamnastrcea, Latome- 

 andra and other An- 

 thozoa, with various 

 species of Polyzoa. 



Ammmntes Murchisonce, 

 Belemnites giganteus, 

 Pholadomya fidicula, 

 Trigonia striata, Myo- 

 concha crassa, Hinnites 

 titberculosus, Terebra- 

 tula plicata, T. cari- 

 nata. 



Peden personatus. 



Ammonites opalinus, 



Eeinecke, = 

 Ammonites primordialis, 



Schloth. 

 Chondrites scoparius. 



I sliall now describe the several beds of the above section in 

 detail : — 



