WEST RAGGED REEF TO MIXUDIE (:i).^LOGAN. 435 



Ft. Tn. 



Greenish gray sandstone 5 



Eed and green argillaceous shale 7 



17. Coal 1 



Gray argillo-arenaceous shale, with stigmariw 



ficoides (underclay) ' 4 



Coal 4 



Carbonaceous shale 4 



Coal 1 9 



4 10 



Gray sandstone, with 3 inches of soft gray argillaceous 

 shale at the top, and penetrated by stigmariw ficoides 



(understone) 1 3 



Gray argillo-arenaceous shale 1 



18. Coal . 3 



Gray arenaceous shale, with stigmarice (underclay) ... 2 



Gray arenaceous sandstone, with stigmarice (underclay) 2 



Red and green shale 3 



Greenish gray sandstone, in several layers 6 



Red and green argillaceous shale 7 



Gray sandstone, with stigmarice (understone) 2 



Red and green argillo-arenaceous shale 4 



19. Coal 1 



Red argillaceous shale, with stigmarice (underclay) ... 4 

 Greenish gray sandstone and red shale alternating, the 



sandstone in 7 beds of 2 to 8 feet, the shale in 5 beds 



of 1 to 3 feet .- 60 



Red and gray argillaceous shale 13 



Greenish gray sandstone 2 



Greenish gray shale and sandstone 2 



Greenish gray sandstone 2 



Greenish gray shale 2 



Greenish gray sandstone 2 



Measures concealed 41 



Pt?oc. & Trans. X. S. Inst, Sci., Vol. XI. Trans. CC. 



