V/EST RAGGED REEF TO MINUDIE (4). — LOGAN. 455 



Ft. In. 



(From the succeeding bed rises an upright sigillaria; 

 the roots spread on the top of it ; the diameter of the 

 plant is a foot; only 1 foot of the length is visible.) 

 29. QoAj. and carbonaceous shale ; the coal being 

 a small seam on the top of the carbonaceous 



shale 2 



Gray argillo-arenaceous shale, with stigmarice 

 and ironstone balls disseminated through 



it (iinderclay) 2 



Coal 1 8 



CcCrhonaceous shale 3 



Coal 11 



Carbonaceous shale 4 



Coal 10 



• 4 



Gray argillo-arenaceous shale, with stigmarice 



leaves crossing the bed (underclay) ;..... 8 

 Carbonaceous shale, gray argillo-arenaceous 

 shale, with stigmarice and small seams of 



coal (3 



Coal and carbonaceous shale 6 



Gray argillaceous shale 6 



Coal 6 



1 6 



Gray argillaceous shale {undercJay?) 10 



Bituminous limestone, with plants, shells and 



fish scales - 3 



24 7 



Gray argillo-arenaceous shale, witth ironstone nodules 



and stigmarioe leaves (underclay) 7 



Gray arenaceous shale and sandstone ; the sandstone 

 exhibits some stigmarice leaves crossing it, and in the 



shale are ironstone nodules (underclay) 20 



(From the succeeding bed rises an upright fluted stem 

 (sigillaria) 10 inches in diameter, of which 12 feet 

 are visible; and 2 upright calamites.) 



