TRANSACTIONS 



OF THE 



ROYAL SOCIETY OF EDINBURGH. 



VOLUME XL. PART IV.— FOR THE SESSION 1903-4. 



CONTENTS. 



XXIX. On the Applications of Quaternions in the Theory of Differential Equations. By J. H. 

 Maclagan-Wedderburn, ........ 



(Issued separately 30th October 1903.) 



XXX. The Lower Devonian, Fishes of Gemiunlen. By R. H. Thaquair, M.D., LL.D., F.R.S., 

 Keeper of the Natural History Collections in the Royal Scottish Museum, Edinburgh. 

 (With Seven Plates), ......... 



[Issued separately 3\st October 1903.) 



XXXI. The Fossil Plants of the Carboniferous /locks of Cauoubie, Dumfriesshire, and of Farts 

 of Cumberland ami Northumberland, By Robert Kidbton, F.U.N. L. & E., F.G.S. 

 (With Five Plates), ......... 



(Issued separately 1th December 1903.) 



XXXI I. The Canonbie Coalfield: its Geological Structure and Relations to the Carboniferous Furls 

 of the North of England and Central Scotland. By B. N. Peach, LL.D., F.R.S., 

 and J. Horne, LL.D., F.R.S. (With Four Plates), .... 



(Issued separately 2>\st December 1903.) 



XXXIII. Supplementary Report on Fossil Fishes collected by the Geological Survey of Scot/anil in 

 the Upper Silurian Rocks of Scotland. By Ramsay II. Traquair, M.D., LL.D., F.R.N. , 

 Keeper of the Natural History Collections in the Royal Scottish Museum, Edinburgh. 

 (With Three Plates), ......... 



(Issued separately 26th January 1905.) 



The Council of the Society, ...... 



Alphabetical List of Ordinary Fellows, ..... 



List of Honorary Fellows, ...... 



List of Ordinary and Honorary Fellows Elected during Session 1899-1900, 

 Fellows Deceased or Resigned, 1899-1900, .... 



List of Ordinary Fellows Elected durinCx Session 1900-01, 

 Fellows Deceased or Resigned, 1900-01, . ... 



List of Ordinary and Honorary Fellows Elected during Session 1901-02, 

 Fellows Deceased or Resigned, 1901-02, ..... 



List of Ordinary Fellows Elected during Session 1902-03, 



Fellows Deceased or Resigned, 1902-03, ..... 



List of Ordinary Fellows Elected during Session 1903-01, 



Fellows Deceased or Resigned, 1903-04 . 



Laws of the Society, ....... 



The Keith, Makdougall-Brisbane, Neill, and Gunning Victoria Jubilee Prizes, 

 Awards of the Keith, Makdougall-Brisbane, Neill, and Gunning Victoria Jubilee 



from 1827 to 1904, ........ 



Proceedings of the Statutory General Meetings, .... 



List of Public Institutions and Individuals entitled to receive Copies of the 



actions and Proceedings of the Society, ..... 

 Index, .......... 



Prizes 



Trans 



Pace 



709 



723 



741 



835 



879 



893 

 895 

 913 

 915 

 916 

 917 

 918 

 919 

 920 

 921 

 922 

 923 

 924 

 925 

 933 



936 

 943 



957 

 965 



EDINBURGH: 



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