18o3,] DAWSON— COAL-MEASURES, NOVA SCOTIA. 3 



observed five small coal-seams with underclays, aud erect trees at two 



levels, and also the instance of irregular bedding represented in 

 fig. 1 A, MS. 



East of M'Caim's Brook is a thick bed of grey sandstone (grind- 

 stone) with prostrate Coniferous trees. Under this are grey and 



chocolate shales and grey sandstone with erect trees at two levels. 

 Then follows a space of about 100 paces without section. 



Shale and sandstone, chocolate and grej^ 90 



Shale and sandstone, chocolate and grey. In one of the beds an 



erect stump, converted into coaly matter 35 



* Sandstone and grey shale. Stigmaria-rootlets 4 () 



Shale, chocolate and grey 25 



* Sandstone, grey. Stools of Stigmaria 3 



Shale, grey, tipper part full of Stigmaria-rootlets 20 



Shales and flags, grey, and in part calcareous. Vegetable frag- 

 ments and fish-scales 15 



Shale, hard grey 6 



XXVII. 



Shale, calcareo-bituminous. Shells of Modiola 1 



Coal 1 



*Underclay, resting on sandstone and shale. Rootlets 10 



Sandstone, coarse grey. Irregularly bedded 6 



*Undei'clay, arenaceous. Stools of Stigmaria and an erect stump 3 6 



Shale, grey 6 



*Sandstone and shale. Irregularly bedded. One bed has Stigmaria- 

 rootlets 8 



Shale, grey, wdth ironstone balls 2 8 



*Sandstone, grey. Rootlets of Stigmaria 2 3 



Shale, gi'ey . An erect tree rooted in bed below 20 



*Bituminous limestone. Rootlets of Stigmaria, Modiola, Cypris... 2 



Shale, carbonaceous, with u'onstone balls. Poacites, &c 9 



*Underclav. Rootlets of Stigmaria 10 



Coal, shaly 1 



*Underclay. Indistinct rootlets 1 2 



*Sandstone, grey argillaceous, passing downward into shale and 



bituminous shale. An erect tree ; Stigmaria-roots 3 



Coal 1 



*Underelay. Rootlets 10 



Sandstone, grey. Erect Calamites and Stigmaria-rootlets de- 

 scending fi'om bed above 1 5 



Shale, grey, pyritous. Numerous flattened plants 4 (>" 



Coal, very pyritous 8 



Shale, bituminous and pyritous. Coaly layers, Poacites, Uloden- 



dron 4 



Coal, with much minei-al charcoal 8 



* Underclay, hard and arenaceous. Stigmaria-rootlets 3 



XXVI. 



Shales, chocolate and grey, with sandstone bands, ripifle-marksand 

 coaly vegetable fragments on some of the sandstones. An 



erect tree. Reptilian foot-prints (fig. 18, ms.) and rain-marks. ()(J 



u 2 



