THE COUNCIL 



OF 



THE ROYAL SOCIETY OF EDINBURGH 



JANUARY 1897. 



PRESIDENT. 



The RiCxHT Hon. Lord KELVIN, G.C.V., LL.D., D.C.L., F.R.S., Grand Officer 

 of the Legion of Honour of France, Member of the Prussian Order Pour le 

 Merite, Foreign Associate of the Institute of France, Regius Professor of 

 Natural Philosophy in the University of Glasgow. 



HONORARY VICE-PRESIDENTS, HAVING FILLED THE OFFICE OF PRESIDENT. 



His Grace the DUKE op AEGYLL, K.G., K.T., D.C.L. Oxon., LL.D., F.K.S., F.G.S. 

 Sir DOUGLAS MACLAGAN, M.D., F.E.C.P.E., LL.D., Emeritus Professor of Medical 

 Jurisprudence in the University of Edinburgh. 



VICE-P RESIDENTS. 



JAMES GEIKIE, LL.D., D.C.L., F.R.S., Professor of Geology in the University of 



Edinburgh. 

 The Hon. Lord M'LAREN, LL.D. Edin. and Glas., ERAS., one of the Senators of the 



College of Justice. 

 The Rev. Professor FLINT, D.D., Corresponding Member of the Institute of France. 

 JOHN G. M'KENDRICK, M.D., F.R.C.P.E., LL.D., F.R.S., Professor of Physiology 



in the University of Glasgow. 

 GEORGE CHRYSTAL, M.A., LL.D., Professor of Mathematics in the University of 



Edinburgh. 

 Sir ARTHUR MITCHELL, K.C.B., M.A., M.D., F.R.C.P.E., LL.D. 



GENERAL SECRETARY. 



P. GUTHRIE TAIT, M.A., D.Sc, Professor of Natural Philosophy in the University of 

 Edinburgh. 



SECRETARIES TO ORDINARY MEETINGS. 



ALEXANDER CRUM BROWN, M.D., D.Sc, F.R.C.P.E., LL.D., F.R.S., Professor of 



Chemistry in the University of Edinburgh. 

 JOHN MURRAY, D.Sc, LL.D., Ph.D., F.R.S., Director of the Challenger Expedition 



Publications. 



TREASURER. 



PHILIP R. D. MACLAGAN, F.F.A. 



CURATOR OF LIBRARY AND MUSEUM. 



ALEXANDER BUCHAN, M.A., LL.D., Secretary to the Scottish Meteorological Society. 



COUNCILLORS. 



THOMAS R.FRASER,M.D.,F.R.C.P.E.,LL.D., ] JAMES BURGESS, CLE, LL.D., M.R.A.S. 



F.R.S., Professor of Materia Medica in the 

 University of Edinburgh. 



ROBERT MUNRO, M.A., M.D. 



D. NOEL PATON, B.Sc, M.D., F.R.C.P.E. 



CARGILL G. KNOTT, D.Sc, Lecturer on Ap- 

 plied Mathematics in the University of 

 Edinburgh. 



Sir WILLIAM TURNER, M.B., F.R.C.S.E, 

 LL.D., D.C.L., D.Sc. Dub, F.R.S., Pro- 

 fessor of Anatomy in the University of 

 Edinburgh. 



Sir STAIR AGNEW, K.C.B., M.A, Registrar- 



JOHN STURGEON MACKAY, M.A, LL.D., 

 Mathematical Master in the Edinburgh 

 Academy. 



RALPH COPELAND, Ph.D., Astronomer-Royal 

 for Scotland, and Professor of Practical 

 Astronomy in the University of Edinburgh. 



DARCY W. THOMPSON, B.A., F.L.S., Pro- 

 fessor of Natural History in University 

 College, Dundee. 



The Rev. Professor DUNS, D.D. 



Lieut. -Col. FREDERICK BAILEY (late) R.E., 

 Lecturer on Forestry in the University of 



General for Scotland. Edinburgh. 



VOL. XXXVIII. PART IV. 6 R 



