VI 
Contents . 
Continuants — A New Special Class of Determinants. By Thomas 
Muir, M.A., Assistant to the Professor of Mathematics in the 
University of Glasgow, ...... 229 
Remarks upon the Footprints of the Dinornis in the Sand Rock at 
Poverty Bay, New Zealand, and upon its recent extinction. By 
T. H. Cockburn-Hood, F.G.S., . . . . . 236 
Supplementary Notice of the Fossil Trees of Craigleith Quarry. By 
Sir Robert Christison, Bart., Hon. Vice-President, R.S.E., &c., . 241 
On a Method of Demonstrating the Relations of the Convolu- 
tions of the Brain to the Surface of the Head. By Professor 
Turner, . . . . . . . .243 
On some Peculiarities in the Embryogeny of Tropceolum speciosum, 
Endl. & Poepp., and T. peregrinum, L. By Professor Alexander 
Dickson, ........ 247 
Notes on Mr Sang’s Communication of 7th April 1873 on a Singular 
Property possessed by the Fluid enclosed in Crystal Cavities in 
Iceland Spar — 
1. By Professor Tait, . . . . , .247 
2. By Professor Swan, ...... 248 
Preliminary Note on the sense of Rotation and the Function of the 
Semicircular Canals of the Internal Ear. By Professor A. Crum- 
Brown, ........ 255 
Biographical Notice of J. S. Mill. By Professor Fraser, . . 259 
Obituary Notice of the Rev. Dr Guthrie. By the Rev. Dr Lindsay 
Alexander, . . . . . • • .273 
Obituary Notice of Mr R. W. Thomson. By Professor Fleeming 
Jenkin, . . . . • • • 278 
Obituary Notice of Archibald Smith. By Sir William Thomson, . 282 
Obituary Notice of the Very Rev. Dean Ramsay. By the Rev. D. F. 
Sandford, ........ 289 
Obituary Notice of Professor Rankine. By Lewis D. B. Gordon, 
C.E., . . . • . . .296 
Obituary Notice of Justus Liebig. By Professor Crum -Brown, . 307 
Obituary Notice of Gustav Rose. By Professor Crum-Brown, .312 
Obituary Notice of the Rev. Professor Stevenson, D.D. By John 
Small, M.A., Librarian to the University of Edinburgh, . . 314 
Obituary Notice of Auguste De la Rive. By George Forbes, 
Esq., 319 
Obituary Notice of Dr J. Lindsay Stewart. By Dr Cleghorn, 
Stravithy, . . • • • • • • 321 
Obituary Notice of John Hunter. By J. T. Bottomly, Esq., Univer- 
sity, Glasgow, . . . . . . .322 
The Kinetic Theory of the Dissipation of Energy. By Sir William 
Thomson, ........ 325 
On the Stresses due to Compound Strains. By Professor C. Niven. 
Communicated by Professor Tait, . . . . .335 
