460 CARBOXIFEROUS ROCKS IN' CUMB. C(X — LOGAN & FLETCHER. 



Ft. In. 



Gray sandstone 2 



Greenish skale, with ironstone balls and stigmarice 

 ficoides (underclay) 4 



34. Carbonaceous shale and coal 2 



Greenish gray argillaceous shale, \v i t h 



ironstone balls and stigmarice branches and 

 leaves ; one of the branches replaced by iron- 

 stone, is 8 feet long 4 



Carhonaceous shale 2 



4 4 



Gray argillo-arenaceous shale, with black streaks and 



stigmarice (underclay) 3 



Gray sandstone, with stigmarice {understone) 10 



Red and green argillaceous shale, with stigmaricB 



(widerclay) 4 



Gray crumbly sandstone 3 



Gray argillo-arenaceous shale, with stigmarice (under- 

 day) 3 



35. Carbonaceous shale 3 



Red and green argillaceous shale, with stigmarice leaves 



at the top {underclmj) 6 



Argillaceous ironstone in a bed (5 



Red and green argillaceous shale 1 



Gray sandstone, with stigmarice leaves (underclay) ... 1 

 Greenish gray argillaceous shale, with dark bands ; 

 argillaceous iron ore nodules abound, and towards 

 the top stigmarice branches and leaves are visible 



(underclay) 28 



Greenish gray crumbly sandstone 8 



Gray argillaceous shale, with ironstone balls. In this 

 there is visible an upright stem (sigillaria) , 1 foot in 

 diameter ; the top only is visible, and it is at the top of 

 the bed 12 



