14 



PROCEEDINGS OF THE GEOLOGICAL SOCIETY. [NoV. 21, 



Section of the Boring at Kentish Town (continued). 



188 ft. 

 6 in. 



'32. 

 33. 

 34. 

 35. 

 36. 



37. 

 38. 

 39. 

 40. 



41. 

 42. 

 43. 

 44. 

 45. 

 46. 

 47. 

 48. 

 49. 

 50. 

 51. 

 52. 

 53. 



54. 

 55. 

 56. 

 57. 

 58. 

 59. 

 60. 



61. 

 62, 

 63. 

 64. 



65, 

 66 

 67. 



'L68 



ft. m. 



Ked and yellow sands, and sandstone 1 



Compact red clay, with patches of variegated sandstone. 4 



Pure dark red clay 4 7 



Red clay, whitish sands, and mottled sandstone 3 



Hard red conglomerate, with pebbles of syenite, green- 

 stone, trap-rock, quartz, hornstone, red claystone- 

 porphyry, and fossiliferous schist, well rounded, and 



varying in size from a marble to a cannon-ball 2 



Micaceous red clays, mottled in places 26 



Seams of white fissile sandstone and red sand 3 8 



Mottled sandstone 4 



Red sand and sandstone with small pebbles and Belem- 



mYcs, and a few small phosphatic nodules 2 



Seams of red sandstone and white sands 4 



Pebbly red sands, and fissile sandstone 1 



White and red sandstone 5 



Fine light-red sands 2 9 



Hard fissile sandstone 3 



Very fine light-red sand 4 



Pure red clay 2 



Red and mottled clayey sands, with some iron -pyrites... 1 3 



Red sandy micaceous clay with fissile sandstone 2 5 



Compact hard greenish sandstone 10 



Very micaceous red clay 1 



Grey and red clayey sands 1 1 



Light-coloured soft sandstone with fragments of Am- 

 monites 2 1 



Red sand and sandstone (highly inclined?) 6 2 



Greenish sandstone 4 



"White and grey clayey sands, with iron-pyrites 2 



Reddish argillaceous sands, with seams of sandstone ... 3 8 



Micaceous red clay 18 4 



Seam of greenish sandstone 5 



Red mottled and micaceous clay, with patches of light- 

 coloured sand, and fragments of Ammonites and of a 



Seaphite^ 14 6 



Red compact micaceous clay, with Belemnites 20 



Red quartzose and micaceous sandstone 2 



Brownish-red clayey sand and sandstone 4 



Very hard micaceous sandstone, wdth small pebbles of 



white quartz 4 



Light red argillaceous sand 10 



Red sandstone, micaceous and quartzose 8 



Light red clayey sands (with small angular fragments 



of chert or flint ?) 2 



Whitish and greenish hard sandstone (horizontal ?) ... 6 



Depth. 



ft. in. 



-1302 



"Note. — The upper strata are grouped in conformity with the divisions I 

 have established elsewhere. The grouping of the Chalk, Greensand, and 

 Gault is rather arbitrary, for the change is so gradual that it is impossible 

 in a mere boring to say where one ends and the other begins. I have intro- 

 duced those divisions which seem to me most in conformity with those I 

 have noticed at the outcrops. They are slightly altered from my first 

 reading of them. — [J. P., January 1856.] 



* This specimen was mislaid before Mr. Sharpe had an opportunity of exa- 

 mining it. 



