ROCKS. •J'.' 



Names. Associated fossils and localities. 



24 Hudson-river sandstone (with obscure remains of Cheetetes, Ortkis, 



etc.)- Loraine. 



25 do (with Ambonychia and Orthonotn). Talcoti's 



quarry, near Rome, Oneida. 



26 do (with Ambonychia). Talcott's quarry. 



27 do (with Modiolopsis). Talcott's quarry. 



28&29 Hudson-river calcareous sandstone (with Leptcciui attentat a). 



Pulaski, Oswego. 



30 Hudson-river calcareous sandstone (with obscure fossil impres- 



sions). Falls of Salmon river. 



31 Hudson-river calcareous shale (with obscure fossils). Northwest 



corner of Columbia county. 



32 Hudson-river calcareous shale (with crinoidal plates and shells). 



Pulaski, Oswego. 



33 Hudson-river decomposing shaly sandstone (with Cyriolites o>- 



natus). Loraine, Jefferson. 



84 Hudson-river calcareous sandstone (with Belhropho?i bilobatus). 



Loraine. 



35 Hudson-river sandstone (with Orthoceras). Oneida. 



36 & 37 Hudson-river shaly sandstone, decomposing (with Leptama, 



etc.). Pulaski. 



38 Hulson-river calcareous sandstone (with fossil fragments). Pu- 



laski. 



39 Hudson-river sandstone (with Lcptana alternata, etc.). Loraine. 



40 Hudson-kivek calcareous sandstone (with Chatetes & fragments). 



Talcott's quarry. 



41 Hudson-river calcareous sandstone (with Ambmtychia). Oneida. 



42 Hudson-river calcareous sandstone (with obscure impressions). 



SIXTH WALL case. 



43 Shaly sandstone. Snake hill, Saratoga. 



44 Green shale. Snake hill. 



45 Gray sandstone. Iledhook, Dutchess. 



46 Green shale. Snake hill, Saratoga. 



47 & 48 Black slate (with graptolites). Columbia county. 

 49 Shale. Banks of North river, Dutchess. 



