CONTENTS. Vll 



NUMBER PAGE 



XXIII. Change of Electric Resistance of Nickel due to Magnetisation at 



Different Temperatures. By Professor C. G. Knott, D.Sc, . 535 



XXIV. A Contribution to the Craniology of the People of Scotland. Part 



L, Anatomical. By Professor Sir William Turner, K.C.B., 

 D.C.L., F.R.S. (With Five Plates), . . . .547 



XXV. The Generating Function of the Reciprocal of a Determinant. By 



Thomas Muir, LL.D., . . . . . .615 



XXVI. Magnetic Shielding in Hollow Iron, Cylinders and Superposed 

 Inductions in Iron. By James Russell, F.R.S.E. (With Six 

 Plates), ........ 631 



XXVII. On the Effect of Temperature on the taking of Salmon ivith Rod and 

 Fly in the River Spey at Gordon Castle in the Autumns of 1898, 

 1899, 1900, and 1901. By George Muirheau, Commissioner for 

 His Grace the Duke of Richmond and Gordon, K.G. (With Four 

 Plates), ........ 683 



XXVIII. On the Distribution of Fossil Fish-remains in the Carboniferous 

 Rocks of the Edinburgh District. By Ramsay H. Traquair, 

 M.D., LL.D., F.R.S., Keeper of the Natural History Collection in 

 the Museum of Science and Art, Edinburgh. (With Two Plates), . 687 



PART IV. (1903-04.) 



XXIX. On the Applications of Quaternions in the Theory of Differential 



Equations. By J. H. Maclagan-Wedderburn, . . . 709 



XXX. The Lower Devonian Fishes of Gemiinden. By R. H. Traquair, 

 M.D., LL.D., F.R.S., Keeper of the Natural History Collections in 

 the Museum of Science and Art, Edinburgh. (With Seven Plates), 723 



XXXI. TJie Fossil Plants of the Carboniferous Rocks of Canonbie, Dum- 

 friesshire, and of Parts of Cumberland and. Northumberland. By 

 Robert Kidston, F.R.S.L. &E., F.G.S. (With Five Plates), . 741 



XXXII. The Canonbie Coalfield: its Geological Structure and Relations to 

 the Carboniferous Rocks 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), . . . . .835 



