SECTION OF THE SOUTH JOGGINS. 



165 



Coal-group 8. 



ft. in. 



30 



6 6 



ti/chiiis, Diplodus^ Palceoniscus, and Rhizodus. The undcrclay 

 has rootlets of Stigmaria, and the bed below this has large 

 roots of the same. 



(Gray sandstone and shale, the latter with nodules of 



ironstone. Erect trees at one level) 

 Gray shale. 

 Coal, 10 inches. 

 Carbonaceous shale and coal, 7 inches. 



Coal -group 7 -i Coal, 2 feet 1 inch. 



Carbonaceous shale, 1 foot 6 inches.* 



Coal, 1 foot 6 inches 



Gray argillo-arenaceous underclay, Stigmaria. 



This is the bed worked at the Joggins as the " Main Seam ;" 

 and I believe that it improves somewhat in raining it inward 

 from the shore. The roof has afforded Sigillaria catenoides 

 and other species, Alethopteris lo7ichitica, Cordaites bof^assifolia, 

 Lepidodendron elegansj Trigonocarpa^ Naiadites, Spiro7'bis, 

 Cythere, fragments of insects. (?) The mineral charcoal con- 

 tains bast tissue, scalariform, epidermal, and cellular tissues. 

 In the compact part of the coal there is dense cellular and 

 epidermal tissue. The roof is especially rich in Cordaites, 

 sometimes with Spirorbis adherent. 



(Gray sandstone and shale, with many ironstone 

 nodules in the shale, and erect Sigillaria and un- 

 derclays at five levels. One of the latter has large 

 stumps of Stigmaria and a thin coaly layer 

 resting on it) 



Gray shale with nodules of ironstone. 



Coal, 2 inches. 



Gray shale, 4 inches. 



Coal, 3 inches. 



Carbonaceous shale, 1 foot 3 inches. 



Coal, 1 inch. 



Argillaceous shale, ironstone nodules, 4 feet. 



Coal, 1 foot 7 1 



Dark argillo-arenaceous underclay, ironstone no- 

 [ dules, and Sticpnaria. 



The roofs of the first and second beds in this group are 

 among the richest in fossils in the Joggins section. They 

 have afforded Pecopteris lonchitica, Cgclupferis, Cypei^ites, 

 Cordaites borassifolia, Cardiocarjmm Jiuitans, Sigillaria elegans, 

 Lepidophloios Acadiamts, Lepidodendron imdidatiwi, Pinnu- 

 laria, Trigonoearpa, etc. ; also Diplostylus Dawsoni,-\ Euryp- 

 terus, Cythere, Naiadites, and Spirorbis attached to plants. The 



* Thins ill mining to the N.E. The details of this seam have been corrected in 

 this edition from a hitc report by iMr liutherford. 

 f Salter, Quart. Journ. Ucol. Sue., vol. xix. \h 77. 



68 



