THE COUNGIL THE ROYAL SOCIETY OF EDINBURGH. OOTOI'.EI: 1904. PRESIDENT. RIUHT HON. LORD KELVIN, G.C.V.O., P.<\, LL.D., D.C.L., F.R.S., Grand (.Mirer of the Legion of Honour of France, Member of the Prussian Order Pour h> Meri((\ Foreign Associate of the Institute of France, Emeritus Professor of Xntura] Philosophy in the University of Glasgow. VICE-PRESIDENTS, JAMES GEIKIE, LL.D., D.C.L., F.R.S., F.G.S., Professor of Geology in tin- University of Edinburgh. THE HON. LORD M'LAREN, LL.D. Edin. and Glas., F.R.A.S., «>ne of the Senators of the College of Justice. THE REV. PROFESSOR FLINT, 1). D., Corresponding Member of the Institute of France. ROBERT MUNRO, M.A., M.D., LL.D., Hon. Mernb. R.I.A. SIR JOHN MURRAY, K.C.B., D.S,-., LL.D.. D.C.L., Ph.D., F.R.S., Director of the k ( 'hailen^er ' Expedition Publications. RAMSAY H. TRA<JUAIR, M.D., LL.D., F.R.S., F.G.S., K^per of the Natural History Collections in the Royal Scottish Museum, Edinburgh. GENERAL SECRETARY. GEORGE CHRVSTAL, M.A., LL.D., Professor of Mathematics in the University of Edinburgh. SECRETARIES TO ORDINARY MEETINGS. ALEXANDER <'RUM BROWN, M.I.)., D.Sc., F.R.C.P.E., LL.D., F.R.S., Professor of Chemistry in the University of Edinburgh. DANIEL JOHN CUNNINGHAM, M.D., LL.D., D.C.L., F.R.S., F.Z.S., Professor of Anatomy in the University of Edinburgh. TREASURER. PHILIP R. D. MACLAGAN, F.F.A. CURATOR OF LIB RARY AND MUSEUM. ALEXANDER BUOHAN, M.A., LL.D., F.R.S., Secretary to the Scottish Meteorological Society. C O U N CILLORS. JOHN HnRNE, LL.D., F.R.S., F.G.S., I DIARM1D NOEL PATON, M.D., B.Sc, Director of the Geological Survey of F.R.C.P.E., Superintendent of Research Scotland. Laboratory of Royal College of Physicians, CARG1LL (J. KNOTT, D.Sc., Lecturer on Edinburgh. Applied Mathematics in the University of JOHN CHIENE, C. B., M.D., LLD., Edinburgh. F.R.C.S.E., Prore.ssor of Surgery in the RALPH STOCKMAN, M.D., F.R.C.P.E., Pro- University of Edinburgh. fessor of Materia Medica and Therapeutics .JOHN GRAHAM KERR, M.A., Professor of in the University of Glasgow. Zoology in the University of Glasgow. JAMKS WALKER, D.S.,, IMi.D., F. U.S., Pro- WILLlAAf PEDDIE, D.Sc/Lectiirer on Natural fessor of Chemistry in I'niversity College, Philosophy in the University of Edinburgh. Dundee. LEONARD DOBRIN, Ph.jj., Lecturer on ANDREW GRAY, M.A., LL.D., F.US., Chemistry in tnt University of Edinburgh Professor of Natural Philosophy in the JAMES OOSSAU EWART, M.D., F.R.C.S.E., University of Glasgow. F.R.S., F.L.s., Professor ut Natural History ROBERT KIDSTOX, F.U.S., F.G.S. in the University of Edinburgh. IT".