200 HE. J. W. KIEKBY ON .FOSSILS OE IHE MAEL-SLATE. 



FT. IN. 



2. Thin band of limestone „ 2| 



3. Limestone, similar to No. 1 .... ... 2 1 



4. A bed composed of yellow marl at top, and brown clay 



below 2§ 



5. Hard, sub-crystalline, dark brown limestone, in thin 



beds at one place, and in one thick bed at another . . 10 



6. Soft, brown, laminated marl 3 



7. Dark brown limestone, very hard 2 



8. Soft brown laminated marl . o 



9. Brownish marl imperfectly laminated 5 



10. Yellowish brown laminated marl passing into hard grey 



marl-slate 10 



The rest of the section is hidden by the debris that has fallen 

 from above ; bnt forty years ago, when Professor Sedgwick visited 

 the same place, he found beneath the marls last mentioned*' 



FT. 



Yellow incoherent sand 20 



Red and black clay 1 



Yellow and light blue unctuous clay 4 



Strong grey freestone passing into soft slaty micaceous 



sandstone at top 20 



There are numerous blocks of what appears to be the grey- 

 freestone of Sedgwick lying scattered about the bottom of the 

 dene, but I could see no traces of any of the other beds named 

 by him. The limestone No. 1 is fossiliferous, and I obtained 

 from it the species enumerated below. 



Pecten pttsilltjs, Gei. 



Geevillia antiqua, Man. 



Steophalosia lamellosa, Gei. 



Similar in growth to the Westoe species. Common. 



Teeebeatula saccula (elongata), Martin. 



Fenestella eetefoemis, Sch. 



ICUTHTOEACHIS ANCEPS, Sch. 

 TEOCnAlDtllNA ptjsilla, Gei. 

 SXENOPOEA COLUMN ARIS ? Sch. 



* Trans. Geol. Soc., Ser. 2, Vol. Ill, p. 71. 



