1853.] DAWSON — COAL-MEASURES, NOVA SCOTIA. 7 



coaljf bed with Stigmaria underclay; still lower, a sandstone ft. in. 

 with erect Calamites rooted in shale, and immediately below 



this another erect stump 110 



Sandstones, grey. Sigillaria, Lepidodendron, Ulodendron, Ar- 



tisia, &c 20 



XIII. 



*Shale, including a 4-inch coal with underclay. In the shale above 

 the coal is a fine ribbed erect tree, 2 feet diameter, 4 feet 

 of height seen. Its roots are well-marked (Stiffmariajicoides). 

 The coal contains Spirorbis, Modiola, and Cypris ; and its 



underclay has rootlets of Stigmaria 10 



Sandstones. Fine ripple-marks 6 



Shales and sandstones. Irregularly bedding (fig. 1, ms.) 12 



Sandstone. Ripples, coaly fragments, Calamites 10 



Shale and sandstone 10 



Shale, calcareo-bituminous, resting on bituminous limestone. 



Modiola, Coprolites, Fish-scales, Cypris 5 



Coal. Prostrate Sigillaria 1 



*Underclay. Rootlets of Stigmaria 2 



Sandstone. Ripples, and coaly fragments 6 



Shaly clay 13 



Bituminous limestone. Cypris, Modiola, Coprolites 3 



Coal, with three clay partings 2 9 



*Underclay. Rootlets of Stigmaria I 6 



Sandstone, grey. Two erect trees, one a Sigillaria 5 



Clay 6 



Sandstone. An erect fluted tree ; erect Calamites rooted one 

 foot above roots of tree. Also an erect coaly tree penetrating 



this, and clay above 8 



Shale, grey and black, passing into bituminous limestone, with 



coaly bands. Modiola 10 



Coal 10 



*Underclay. Stigmaria-rootlets 1 



**Sandstones and shales. Stigmaria-rootlets at two or three levels 30 

 Shales, coarse and fine. An erect tree ; also Poacites with 



Spii-orbis 8 



Coal 5 



*Bituminous limestone. Stigmaria-roots and rootlets, Modiola, 



Coprolites, Cypris 4 



Coal 7 



*Underclay 1 6 



XII. 



*Sandstones and shales, including a 6-inch coal and several under- 

 clays. Erect trees at five levels. One of the trees 4 feet in 

 diameter, and irregularly ribbed; rooted in shale, with 

 rootlets ' 80 



XI. 



Shale, passing into bituminous limestone, with coaly layers. Cy- 

 pris, Coprohtes, Spirorbis, Modiola 8 



*Clay, pyritous, with coaly bands. Stigmaria-rootlets 20 



Sandstone ^^ *' 



Shale, with ironstone, passing into bituminous shale 20 



