Pete COOWN C hd, 
OF 
Hi wove SsOCtTETY OF EDINBURGH. 
OCTOBER 1905. 
PAREsSHtOvEeNils. 
THE Rigut Hon. Lorp KELVIN, G.C.V.O., P.C., LL.D., D.C.L., F.R.S., Grand 
Officer of the Legion of Honour of France, Member of the Prussian Order 
Pour le Mérite, Foreion Associate of the Institute of France, Emeritus 
Professor of Natural Philosophy in the University of Glasgow. 
VICE-PRESIDENTS. 
Tue Hon. Lorv M‘LAREN, LL.D. Edin, and Glas., F.R.A.S., one of the Senators of the 
College of Justice. 
Tue Rey. Proressor FLINT, D.D., Corresponding Member of the Institute of France. 
ROBERT MUNRO, M.A., M.D., LL.D., Hon. Memb. R.1.A. 
Sir JOHN MURRAY, K.C.B., D.Sc., L.D., D.C.L., Ph.D., F.R.S., Director of the 
‘Challenger’ Expedition Publications. 
RAMSAY H. TRAQUAIR, M.D., LL.D., B.R.S., F.G.S., Keeper of the Natural History 
Collections in the Royal Scottish Museum, Edinburgh. 
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. 
GENERAL SECRETARY. 
GEORGE CHRYSTAL, M.A., LL.D., Professor of Mathematics in the University of 
Edinburgh. 
SECRETARIES TO ORDINARY MEETINGS. 
DANIEL JOHN CUNNINGHAM, M.D., LL.D., D.C.L., F.R.S., F.Z.S., Professor of 
Anatomy in the University of Edinburgh. 
CARGILL G. KNOTT, D.Sc., Lecturer on Applied Mathematics in the University of 
Edinburgh. 
TREASURER. 
PHILIP R. D. MACLAGAN, F.F.A. 
CURATOR OF LIBRARY AND MUSEUM. 
ALEXANDER BUCHAN, M.A., LL.D., F.R.S., Secretary to the Scottish Meteorological 
Society. 
COUNCILLORS. 
ANDREW GRAY, MA, LED. -F.BS., JAMES COSSAR EWART, M.D., F.R.C.S.E., 
Professor of Natural Philosophy in the F.R.S., F.L.S., Professor of Natural History 
University of Glasgow. in the University of Edinburgh. 
ROBERT KIDSTON, F.R.S., F.G.S. BENJAMIN NEEVE PEACH, LL.D., F.R.S., 
DIARMID NOEL PATON, M.D., B.Sc., F.G.S., late District Superintendent and 
F.R.C.P.E., Superintendent of Research Acting Palontologist of the Geological 
Laboratory of Royal College of Physicians, | Survey of Scotland. 
Edinburgh. | JAMES JOHNSTON DOBBIE, M.A., D.Sc., 
JOHN  CHIENE, C.B.. M.D, UL. D., F.R.S., Director of the Royal Scottish 
F.R.C.S.E., Professor of Surgery in the | Museum, Edinburgh. 
University of Edinburgh. | GEORGE A. GIBSON, M.A., LL.D., Professor 
JOHN GRAHAM KERR, M.A., Professor of of Mathematics in the Glasgow and West ot 
Zovlogy in the University of Glasgow. Scotland Technical College, Glasgow. 
WILLIAM PEDDIE, D.Sc., Lecturer on Natural JOHANNES P. KUENEN, Ph.D., Professor 
Philosophy in the University of Edinburgh. of Natural Philosophy in University College, 
LEONARD DOBBIN, Ph.D., Lecturer on Dundee. 
Chemistry in tue University of Edinburgh. 
