3I00EE ABXOKilAL SECOND AET DEPOSITS. 469 



ft. in. 



Lighter ditto 4 



Deep-black clay 3^ 



Lighter marl 6^ 



Gi-rej clay 8^ 



Yellowish marl 5 



Ditto 8 



Blue marl 5 



G-rey ditto 5 



Blue clay 3 9 



G-rey ditto 3^ 



Whitish sandy marl 4 



Blue clay 2 



Dark clay with nodular stones 2 q 



G-rev band 3 



Blackclay 1 8 



Thin bands of gi'ey and brown marl 4 



Yellowish band 4 



Greyish clays 2 



Sandy grey marl 9 



As the above have hitherto yielded no fossils, I am disposed to class 

 them with the Xeuper. They appear to graduate insensibly into the 

 Ehaetic beds which follow : — 



Ehcstic. ft. in. 



Various beds of grey and brownish marl, with fish-remains ... 8 

 Grey oolitic stone with fish-bones, and teeth of Hyhodus and 



Acrodus 5 



Bubbly oolitic marl 7 



Brownish marl 3 10 



Blue clay with sulphurous-looking patches, Avicula contorta, &c. 7 



The " Flinty Bed " of Beer Crowcombe 10 



Yellowish and chocolate-colom'ed clay 1 3 



Blue clay, with Avicula contorta, &c 8 3 



Followed on the east of the Hatch tunnel by grey laminated 



marl, and stone with Acrodiis-iQeth. &c 7 



Grey stone with layers of darker colour 1 2 



Light-blue marl 3 



White Lias. 



White Lias, Hght-blue or cream-coloured 1 2 



Thin rubbly beds full of Area, Ostrea intusstriata, Lucina ? My- 



acites, &c 8 



Light-blue marl 1 6 



White Lias 9 



Light-blue marl with shells 1 6 



White Lias 6 



Marl 2 



White Lias 3 



Ditto 7 



Marl 4 



White Lias 9 



Bubbly layers of ditto 6 



Nodidar White Lias, 0. intiisstriata 6 



Bluish nodular bed, ditto 2 



The Lower or Blue Lias immediately follows ; but as I have for- 

 merly given sections on the same horizon at Beer, they need not be 

 repeated here. There are in this cutting 62 distinct beds above the 

 " White Lias," having a thickness of about 60 feet. I have had 

 therefore again in this section the advantage of an uninterrupted 



