60 



LOWER LIAS. 



LiTHOLOGY. Thickness. 



No. ft. in. 



13. Limestone 0 3 



14. Clay 0 10^ 



15. Limestone 0 3| 



16. Clay 0 8 



17. Liaiestone Sin. to 0 6 



18. Strong hard clay 0 31 



19. Argillaceous limestone; imperfect 



stone 0 .3 



20. Laminated clay 1 6 



21. Fragmentary shelly limestone 0 H 



22. Stoney shale. 



23. Hard limestone 0 6 



24. Hard cky 1 3 



25. Limestone 0 



26. Clay. Thin hard plates of stone lie 



in this clay 0 11 



27. Limestone, underlain by clay. (The 



clay frequently wanting) 0 Of 



28. Limestone; inconstant 0 6 



29. Clay. 



30. Hard gray limestone 0 6 ' 



31. Clay 0 2 



32. Limestone 0 3 



33. Clay , 0 2 



34. Limestone 0 3 



35. Clay 0 3 



36. Hard dark limestone 1 in. to 0 10 



(This is the bottom bed of the 

 quarry.) 



AVICULA CONTORTA BeDS. 



37. Thick clay-bed; yellowish blue ; break- 



ing in angular fragments 8 0 



38. Dark ferruginous clay, with con- 



choidal fracture 8 0 



39. Clay ? 



40. Laminated clays 3 0 



Organic remains; and Local Names of the Beds. 



" Paving-stone." A few Insects, and PholidopJtorus 

 StricMandi, Ag. 



"Bottom rock." More Insects iere than in all 

 the other beds collectively. 



" Hoggs." Tetragonolepis angulifer, Ag. (War- 

 wick Mas.) 



"Huskin." No fossils in this qnarry. 



" Grizzle bed." Saurian bones, Fishes' teeth and 

 scales, Ammonites planorbis, Lima punctata, 

 Cardium, and Ostrea liassica ; sp'mes o{ Cidaris 

 and other EchinidcB abundant. 



"Blue stone" or "Blocks." Myacites, and elytra 

 of Coleoptera. 



" Grave-stone rock." Ichthyosaurus and Otopteris 

 acuminata, L. & H. 



" Gummerals." Ostrea liassica. 



" Fire-stone beds." Saurian remains and Car- 

 dium. 



Modiolia minima, Myacites, and Ostrea liassica. 

 In these limestones and clays only one small 

 Ammonites planorhis has been found. 



" The Guinea-bed." Saurian bones, Avicula longi- 

 costata, Stutch., Monotis decussata (?), Lima 

 punctata, Myacites, n. sp., Ostrea liassica, and 

 Hemipedina, Tomesu', Wright, in numbers ; Coral. 



[Belonging to the zone of Avicula contorta.'\ 

 Estberia bed. Estheria minuta. 

 "Clear blue blocks." 



