108 PEOCEEDIlNrGS OF THE GEOIOGICAL SOCIETY. [DeC. 20, 



abundance of vascular bundles of ferns and portions of ft. in. 

 epidermal tissues of different plants. 



(Grey sandstone and red and grey shales. Btigmaria 

 in the upper bed, and prostrate Sigillaria and 

 Cordaitcs in some of the sandstones and shales) . . . 490 



(Grey argillaceous shale, ironstone nodules. 

 Coal 3 inches 3 

 Argillo-arenaceous underclay, Stigmaria. 



The roof of this coal holds prostrate Sigillarice of three 

 species and Cordaites horassifolia. The coal is hard and 

 shining, with impressions of flattened Sigillarice, also of 

 Cordaites, Asteropliyllites , Carpolites, and vascular bundles 

 of ferns. 



(Underclay and reddish grey shale) 6 



/ Eeddish grey shale. 



I Coal and coaly shale 8 inches. 

 n 1 in I Grey argillaceous underclay, nodviles of ironstone, 



Coal-group 10...^ ^^^a"" Stigmaria 2 feet. 



I Coal, stony and compact, 2 inches 2 10 



1^ Grey argillaceous underclay, Stigmaria. 



The roof-shale has obscure impressions of plants, appa- 

 rently petioles of ferns. The upper coal is thinly laminated 

 and full of leaves of Cordaites and ferns, among which is 

 Aleihopteris lonchitica. The lower coal is compact, resem- 

 bling cannel, and has many vascular bundles of ferns. It 

 seems to be composed of herbaceou.s matter macerated in 

 water and mixed with mud. 



(Grey sandstone and shale with nodules of ironstone) 23 



{Grey argillaceous shale. 

 Co«^, shaly, 3 inches 3 

 Arenaceous underclay, Stigmaria. 



An erect ribbed Sigillaria appears in the roof-shale. The 

 coal contains many flattened Sigillariw, also Trigonocar'pa, 

 Cordaites, and vascular bundles of ferns. 



(Arenaceous understone with ironstone nodules and 



Stigmaria, and carbonaceous shale) 7 9 



r Carbonaceous shale. 



Coal-group 12... -I Co«^2 inches 2 



[ Argillaceous underclay, ironstone, and Stigmaria. 



This coal is hard and laminated, with many vascular 

 bundles of ferns upon its surfaces. 



(Grey sandstone and grey argillaceous shale) 12 



r Grey argillaceous sliale. 



Coal-group 13... j Coa/ 7 inches .!. 7 



[ Grey argillaceous underclay, ironstone, and Stigmaria. 



The roof contains erect stumps, not distinctly marked. 

 The coal has indications of bark of Sigillaria, and is hard 

 and shining, with a coarse earthy layer in the middle. 



■ (Grey shale) 7 



/Grey shale, as above. 

 Coal-groupl4...'iC(9a^ 4 inches 4 



