]870.] . ^'^^ [Uaydeii. 



No. Description. Feet. In. 



15. Clay shale, Black, 10 



16. Limestone, angular fragments, 6 



17. Clay sliale, Brown, 



18. Limestone, slightly fossiliferous, 1 6 



19. Gypseous Earth, contains crystals of Selenite, 3 



20. White Marl, shells fragmentary, 1 



21. Limestone, very fossiliferous, 6 



22. Clay shale. Black, 1 4 



23. Limestone, very fossiliferous, 2 



24. Clay shale, Brown, 2 6 



25. Sandstone, Fragmentary, 4 



26. Clay shale. Grey-black, 2 



27. Gypseous earth, layer of crystals of Selenite on E. side, 6 



28. Clay shale, contains streak of coal and Gypseous earth, 2 6 



29. Gypseous earth, contains streaks of brown bituminous 



shale, 8 



30. Clay shale, Brown, very hard, 1 6 



31. " Black, Bituminous, 5 



32. Marl, Grey, 2 



33. Limestone, 10 



34. Clay, fuU of fossils, 3 



35. Clay shale. Grey, 1 



36. " Blue, 3 



37. Sand. Yellow, 2 



38. Clay shale. Grey, 1 



39. " " Bituminous, 8 



40. Limestone, Fossiliferous, 6 



41. Clay shale and marl, Fossiliferous, less foss. on W. side, 1 6 



42. Bitimoinous shale, contains streaks black coal, 4 



43. Clay shale, Blue, 6 



44. Gypseous Earth, 1|^ 



45. Clay shale, Blue, 1 



46. Marl, 4 



47. Clay shale. Blue, 1 



48. Marl, Yellowish -white, 3 



49. Sandstone, Fossiliferous, 9 



50. Clay shale, Blue, 1 2 



51. Sandstone, Fragmentary, 8 



52. Clay shale. Blue and Yellow, 6 



53. Limestone, very fossiliferous, 6 



54. Clay, fuU of fossils, 2 



55. Bands, Black, bituminous shale and marl, 2 6 

 66. Marl, 5 



57. Slaty shale. Black, 6 



58. Limestone, very fossiliferous, 3 



A. p. S. — VOL. XI. — 25e 



