THE COUNCIL 



OF 



THE ROYAL SOCIETY OF EDINBURGH 



NOVEMBER 1886. 



Sir WILLIAM THOMSON, LL.D., F.R.S., 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 of ARGYLL, X.T., D.C.L. Oxon., F.R.S. 

 The Eight Hon. Lord MONCREIFF, LL.D., Lord Justice-Clerk. 

 THOMAS STEVENSON, Esq., M. Inst., C.E. 



VICE-P RESIDENTS. 



ALEXANDER FORBES IRVINE, of Drum, Sheriff of Argyll. 



JOHN MURRAY, Ph.D., Director of the Challenger Expedition Commission. 



D. MILNE HOME of Milne-Graden, LL.D. 



Sir DOUGLAS MAC LAGAN, M.D., President of the Royal College of Physicians, 



Edin., F.R.C.S.E., and Professor of Medical Jurisprudence in the University of 



Edinburgh. 

 The Hon. Lord MACLAREN, LL.D. Edin. and Glas., F.R.A.S., one of the Senators of 



the College i >f Justice. 

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



GENERAL SECRETARY. 



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



SECRETARIES TO ORDINARY MEETINGS. 



Sir WILLIAM TURNER, M.B., F.R.C.S.E., F.E.S., Professor of Anatomy in the 



University of Edinburgh. 

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



Chemistry in the University of Edinburgh. 



TREASURER. 



ADAM GILLIES SMITH, C.A. 



CURATOR OF LIBRARY AND MUSEUM. 



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



COUNCILLORS. 



GEORGE CHRYSTAL, M.A., Professor of 



Mathematics in the University of Edinburgh. 

 ALEXANDER DICKSON, M.D., Professor of 



Botany in the University of Edinburgh. 

 .1. SHIELD NICHOLSON, Professor of Political 



Economy in the University of Edinburgh. 

 T. B. SPRAGUE, M.A. 

 S. H. BUTCHER, M.A., LL.D., Professor of 



Greek in the University of Edinburgh. 

 JOHN G. M'KENDRICK, M.D., F.R.C.P.E., 



F.R.S., Professor of the Institutes of Medicine 



in the University of Glasgow. 

 THOMAS MUIR, M.A, LL.D., Mathematical 



Master in the High School of Glasgow. 



WILLIAM CARMICHAEL M'INTOSH, M.D., 

 LL.D., F.R.S., F.L.S., Professor of Natural 

 History in the University of St Andrews. 



ROBERT GRAY, Secretary to the Royal Physical 

 Society of Edinburgh, Member of the British 

 Ornithologists' Union, Corresponding Member 

 of the Academy of Natural Sciences of 

 Philadelphia. 



ARTHUR MITCHELL, C.B., M.A, M.D., LL.D., 

 Commissioner in Lunacy. 



STAIR A. AGNEW, Esq., C.B., M.A, Advocate, 

 Registrar-General. 



ROBERT M. FERGUSON, Ph.D. 



