Contents. vii 
PAGE 
Contributions to the Craniology of the People of the Empire of 
India. Part III. : Natives of the Madras Presidency, Thugs, 
Veddahs, Tibetans, and Seistanis. By Sir William Turner, 
K.C.B. Title only , ...... 320 
Note on the Smolt to Grilse Stage of the Salmon, with Exhibition 
of a Marked Fish recaptured. By W. L. Calderwood. Issued 
separately October 12, 1906, . . . . .321 
Two Lecture Experiments in illustration of the Theory of 
Ionization. By Dr W. W. Taylor. Communicated by Professor 
Crum Brown. Issued separately October 12, 1906, . . 325 
A Dietary Study of Five Halls of Residence for Students in 
Edinburgh. By I. D. Cameron, M.B., D.P.H. Communicated 
by D. Noel Paton, M.D. Issued separately November 9, 1906, 327 
Further Study of the Two Forms of Liquid Sulphur as Dynamic 
Isomers. By Alexander Smith and C. M. Carson. Issued 
separately November 12, 1906, ..... 352 
The Theory of Alternants in the Historical Order of Development 
up to 1860. By Thomas Muir, LL.D. Issued separately 
November 16, 1906, ...... 357 
The Theory of Circulants in the Historical Order of Development 
up to 1860. By Thomas Muir, LL.D. Issued separately 
November 16, 1906, . . . . . . 390 
Initiation of Deep-Sea Waves of Three Classes : (1) from a 
Single Displacement ; (2) from a Group of Equal and Similar 
Displacements ; (3) by a Periodically Varying Surface Pressure. 
By Lord Kelvin. Issued separately November 17, 1906, . 399 
“ Scotia” Collections. On Echinorhynchus antarcticus , n. sp., and 
its Allies. By John Rennie, D.Sc., University of Aberdeen. 
Communicated by Wm. S. Bruce, Esq. (With a Plate.) Issued 
separately January 4, 1907,- ..... 437 
Electrolysis through Precipitation Films. Part I. By W. S. 
Millar, M.A., B.Sc., Carnegie Research Scholar, and Dr W. W. 
Taylor. Communicated by Professor Crum Brown. Issiied 
separately January 4, 1907, ..... 447 
Nematodes of the Scottish National Antarctic Expedition, 
1902-1904. By Dr v. Linstow, Gottingen. Communicated by 
W. S. Bruce. (With Two Plates.) Issued separately January 
4, 1907, .464 
Scottish National Antarctic Expedition. “Scotia” Collections. 
Collembola from the South Orkney Islands. By George H. 
Carpenter, B.Sc., M.R.I.A., Professor of Zoology in the Royal 
College of Science, Dublin. (With Two Plates.) Communi- 
cated by William Evans, Esq. Issued separately January 14, 
1907, 473 
Statistical Studies in Immunity : The Theory of an Epidemic. 
By John Brownlee, M.D. (Glas.). Communicated by Dr R. M. 
Buchanan. Issued separately January 14, 1907, . . 484 
