378 Proceedings of the Royal Physical Society. 



PL cxciii^. 1-4. Trigonocarpum Noeggerathi. 

 Localities. — Holywell Colliery, and Wilmington Colliery, 

 Newcastle Coal Field. 



Horizon. — Coal-Measures. 



Bemarks. — This is the Trigonocarpus Parkinsoni, Brongt. 



PI. cxciiic. Trigonocarpum oblongum, L. and H. 



Locality. — Tn Sandstone, Hound Hill, near Pontefract. 



Horizon. — Middle Coal-Measures. 



Bemarks. — In those localities where Trigonocarpits Parkin- 

 soni occurs plentifully, there are usually associated with 

 them specimens very similar to those described as Trigono- 

 carpum ohlongum, and which so graduate into typical 

 Trigonocarpus Parkinsoni that I can scarcely regard them 

 as distinct. 



PL cxcvi. Calamites inequalis, L. and H. 



Locality. — Sandstone Quarry, East of Sheffield. 



Horizon. — Coal-Measures. 



Bsmarks. — The specific character of this species is more 

 than probably dependent on imperfect preservation. I am 

 afraid this fossil must also be placed among the "imperfectly 

 known species." 



PL cxcvii. Neuropteris heterophylla. 

 Locality. — In shale worked for the ironstone it contains. 

 A little north of Whitley, on the coast of Northumberland. 

 Bem.arks. — This is the Neuropteris gigantea, Sternb. 



PL cxcviii. Lepidostrobus pinaster, L. and H. 



Locality. — South Shields. 



Horizon. — Coal-Measures. 



Bemarks. — This species is founded on a small portion of 

 the bark of Lepidophloios acerosus, L. and H. For additional 

 notes, see remarks under pi. viL 



PL cxcix. Lepidodendron elegans. 

 Locality. — Felling Colliery. 

 Horizon. — Lower Coal-Measures. 



