

TRANSACTIONS 



OF THE 



ROYAL SOCIETY OF EDINBURGH. 



VOLUME XLV. PART IT.— SESSIONS 1905-6, 1906-7. 



CONTENTS. 



PAGE 



X. 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 Principal 

 Sir William Turner, K.C.B., D.C.L., F.R.S. (With Four Plates), . . .261 



{Issued separately 2§th July 1906.) 



XL A Pfafflan Identity, and related Vanishing Aggregates of Determinant Minors. By Thomas 



Muir, LL.D., .......... 311 



{Issued separately \§th August 1906.) 



XII. Scottish National Antarctic Expedition: Tardigrada of the South Orkneys. By Jambs 



Murray. (With Four Plates), ........ 323 



{Issued separately 3\st August 1906.) 



XIII. Tlie Plant Remains in the Scottish Peat Mosses. Part II. — The Scottish Highlands. By 



Francis J. Lewis, F.L.S. (With Four Plates), ...... 335 



{Issued separately 19#j October 1906.) 



XIV. An Investigation of the Seiches of Loch Earn by the Scottish Lake Survey. Part I. — 



Liranographic Instruments and Methods of Observation. By Professor G. Chrtstal. 

 Part II. — Preliminary Limnographic Observations on Loch Earn. By James Murray, . 361 

 {Issued separately \lth October 1906.) 



XY. The Viscosity of Solutions. Part I. By C. Ranken, B.Sc, and Dr W. W. Taylor, . 397 



{Issued 31st December 1906.) 



XVI. The Temperature of the Fresh-water Lochs of Scotland, with special reference to Loch Ness. 

 With Appendix containing Observations made in Loch Ness by Members of the Scottish 

 Lake Survey. By E. M. Wedderburn, M.A., ...... 407 



{Issued separately 22nd February 1907.) 



XVII. The Superposition of Mechanical Vibrations {Electric Oscillations) upon Magnetisation, and 



Conversely, in Iron, Steel, and Nickel. By James Russell, . . . .491 



{Issued separately 28th February 1907.) 

 XVIII. The Hydroids of the Scottish National Antarctic Expedition. By James Ritchie, M.A., 



B.Sc, Fullerton Scholar, University of Aberdeen. (With Three Plates), . . .519 



{Issued separately Kith March 1907.) 



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