WEST RAGGED REEF TO MIXUDIE (4). — LOGAN. 463 



Ft. In. 



Gray and black shale ' 3 



Carbonaceous shale 1 



Red and green argillaceous shale, studded with ironstone 



balls; no siigmarice visible (underclay?) 15 



39. Coal 0^ 



Gray argillaceous shale, with stigmarice . . 6 



Darh gray limestone^ with stigmarice 



branches and leaves, and minute shells. . 4 



nn 



Eed and green argillaceous shale, with stigmaria^ leaves 



(underclay) 1 6 



Red and green sandstone 1 



Red argillaceous shale, with some green and gTay 



bands ; the whole containing thin bands of sandstone 18 



Greenish gray sandstone 8 



Dark red and green argillaceous shale, studded with 



ironstone balls 15 



Gray hard argillaceous sandstone ^ 1 



Dark gray argillaceous shale, with ironstone balls in 



considerable number, with some i-ed argillaceous beds 20 

 40. Blach bituminous limestone, with shells. 1-| 4 



Carbonaceous shale 0^ 



Black bituminous limestone, with, shells ... . 1 



Gray argillaceous shale 2 



Black bituminous limestone^ with shells. ... 2 

 Gray argillaceous shale, with ironstone balls 



(underclay?) 1 



Coal 1 



Carbonaceous shale, with thin seams of coal 3 

 Gray argillo-arenaceous shale, with stig- 



mariw ficoides (underclay) 1 



Blade bituminous limesto-ne, with shells and 



stigmari<:e 6 



Carbonaceous shale and thin lamince of coal 2 



3. .% 



