OP THE CARBONIFEROUS STRATA. 



185 



yds. ft. 



Floor, full of small Ironstone Nodules 1 2 

 Black, heavy Stone, of a crystalline 



structure 1 



Blue Shale 6 1 



Light-ooloored Rock.. 21 



White earthy Shale 60 



Very black Shale 30 



Curled Stone, resembling impure 



Gannister 2 



Light Shale 10 



Grey flaggy Rock (Old Lawrence), 

 Elland Flag in Yorkshire 6 



Black stony Shale 30 



Black Iridescent Shale, containing 

 Shells of the genera avicula 

 (pectenj , goniaiites, <i:c. 6 



Coal (Pyritous) 



Black dirty Shale 12 



Grey lumpy Shale 3 



Brownish dirty Rock, full of black 



streaks 4 



Hard sharp Sandstone, (Tumbling 



Cob Rock,) well seen at Ending 



Common, near Whitworth 4 



Dark grey Shale, which swells much 



on exposui-e to the atmosphere ... 40 



Coal 



Grey Metals 3 



This rock is of a red colour 

 at Harwood and Otterscoe 

 Bridge, near Marple. 



1 6 < 











1 



1 6 







' It sometimes exceeds twenty 

 yards in thickness ; but it is 

 always parted by layers of 

 shale, three or four feet thick. 

 It is worked at Kerridge 

 near Bollington, Holy Fold in 

 Romilly, Catlow near Colne, 

 Bagslate near Rochdale, Har- 

 wood and Doffcocker near 

 Bolton, Enfield near Aocring- 

 ton,'Wrightington, Upholland, 



. and Huyton. 



This coal is near eighteen 

 inches thick in the neigh- 

 , bourhood of Baoup. 



2b 



