Carhoniferons Si/stcrn in Eastern Canada. 159 



(I.) From tlie JRiversdale formation, in rather fine- 

 grained arenaceous or clay shales from cuttings along the 

 Intercolonial Railway of Canada, between Union Siding 

 and West Eiver Station, Colchester County : — • 



Plant.e. 



1. Asterophyllites acicularis, Dawson ( = Calamocladus equisetiforinis, 



Schlothuni, Sp.). 



2. Neiiropteris, Sp. 



3. Sphenopteris marginata, Dawson. 



4. Alethopteris, Sp., allied to Ahthopteris valida, Boiilay. 



5. Cordaites principalis, Germai- Sp. 



6. Cordaites Robbii, Dawson. 



7. Cyclopteris (Nephropteris) varia, Dawson. 



8. Calamites, Sp. (?) 



9. Cardiocarpum cornutum, Dawson. 



(II.) From the shales and sandstones of the Rivcrsdale 

 formation as it developed along the Harrington River, on 

 the boundary between the counties of Colchester and 

 Cumberland, near Lower Five Islands : — 



1. Astrophyllites acicularis, Dawson. 



2. Calamites, Sp. 



3. Sphenopteris dilatata, Lindley and Hutton. 



4. Sphenopteris Harttii, Dawson. 



5. Sphenopteris splendens, Dawson. 



6. Sphenopteris marginata, Dawson (?). 



7. Sphenopteris, Sp. 



8. Aneimites valida, Dawson. 



9. Adiantides (?) or (?) Archaeopteris. 



10. Neuropteris, Sp. 



11. Alethopteris discrepans, Dawson ( = Alethopteris decurrens, 



Artis Sp.). 



12. Cyperites-like leaves. 



13. Cardiocarpum cornutum, Dawson. 



14. Psilophyton (?) glabrum, Dawson. 



Quite independently, Prof. David White, of the Smith- 

 sonian Institution and United States Geological Survey at 

 Washington, arrived at the same conclusion in January, 

 1898, when he kindly examined the collections then in 

 our possession at Ottawa, and referred the forms to the 

 Carboniferous system, which view Mr. Kidston subse- 

 quently and also quite independently corroborated. It is 



