THE 



CANADIAN NATURALIST 



AND 



<$uattcrtg founutt of Sttitntt. 



NOTES ON SOME SCOTTISH DEVONIAN PLANTS. 



By J. W. Dawson, LL.D., F.R.S., Principal and Vice-Chancellor 

 of McGrill University, Montreal. 



(Read before the Edinburgh Geological Society, 20th Dec. 1877, 

 D. Milne Home, Esq., LL.D.. President, in the chair.) 



Since the publication of my Memoirs on Devonian Plants, in 

 the Journal of the Geological Society of London and in the 

 Reports of the Canadian Geological Survey, I have watched 

 with some interest the progress of discovery in the Devonian 

 Flora of Scotland, and desire now to make a few remarks on 

 new and critical forms, and on opinions which have been expressed 

 by workers in this field. 



Previously to the appearance of my descriptions of Devonian 

 plants from North America, Hugh Miller had described forms 

 from the Devonian of Scotland, similar to those for which I 

 proposed the generic name Psilophyton ; and I referred to these 

 in this connection in my earliest description of that genus.* 

 He had also recognized what seemed to be plants allied to 

 Lycopods and Conifers. Mr. Peach and Mr. Duncan had made 

 additional discoveries of this kind, and Sir J. Hooker and Mr. 

 Salter had described some of these remains. More recently 

 Messrs. Peach, Carruthers and McNab have worked in this field, 

 and in the present year f Messrs. Jack and Etheridge have 

 summed up the facts and have added some that are new. 



•Journal Geological Society, London, 1859. 

 f Ibid, 1877. 

 Vol. VIII. y No. 7. 



