TEE COU Nea 
OF 
THE ROYAL SOCIETY .OF- EDINBURG 
DECEMBER 1880, 
THE Richt Hon, Lorp MONCREIFF OF TULLIBOLE, 
Lorp JusticE-CLERK, LL.D., PResIpENT, 
HONORARY VICE-PRESIDENTS, HAVING FILLED THE OFFICE OF PRESIDENT. 
His Grace THE DUKE or ARGYLL, K.T., D.C.L. Oxon., F.R.S. 
Smr ROBERT CHRISTISON, Bart, M.D., F.R.C.P.E., D.C.L. 
Str WILLIAM THOMSON, LL.D., F.R.S., Foreign Associate of the Institute of France, 
Regius Professor of Natural Philosophy in the University of Glasgow. 
VICE-PRESIDENTS. 
Sir ALEXANDER GRANT, Barr., LL.D., Principal of the University of Edinburgh. 
DAVID MILNE HOME, Esq. of Milne Graden, LL.D., F.G.S., President of the 
Geological Society of Edinburgh. 
Sm C. WYVILLE THOMSON, LL.D., F.R.S., Professor of Natural History in the 
University of Edinburgh. 
DOUGLAS MACLAGAN, M.D., F.R.C.S.E., Professor of Medical Jurisprudence in 
the University of Edinburgh. 
H. C. FLEEMING JENKIN, F.R.S., Mem. Inst. Civ. Eng., Professor of Engineering 
in the University of Edinburgh. 
THe Rev. W. LINDSAY ALEXANDER, M.A., D.D., Principal of the Congregational 
Theological Hall, Edinburgh. 
GENERAL SECRETARY. 
P. GUTHRIE TAIT, M.A., Professor of Natural Philosophy in the University of Edinburgh. 
SECRETARIES TO ORDINARY MEETINGS. 
WILLIAM TURNER, F.R.S., F.R.C.S.E., Mem. R.C.S. Eng., 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 Scottish Meteorological Society. 
COUNCILLORS. 
J. Y, BUCHANAN, M.A. Tue Rev. JOHN GIBSON CAZENOVE, M.A., 
D.D 
Rev. THOMAS BROWN. Ds 
ROBERT GRAY, Secretary to Royal Physical DAVID STEVENSON, Member of the Institute 
Society, of Civil Engineers, 
WILLIAM ROBERTSON, M.D., F.R.C.P.E. GEORGE CHRYSTAL, M.A., Professor of 
4. CAMPBELL FRASER, M.A., LL.D., Pro- Mathematics in the University of Edin- 
fessor of Logic and Metaphysics in the Uni- burgh. . 
versity of Edinburgh. eee ees of Irvine of Drum, 
ARCHIBALD GEIKIE, LL.D., F.R.S., F.G.S. EE Eat Sif 
President of the Royal Physical Society, | ALEXANDER DICKSON, M.D., Professor 
Professor of Geology in the University of of Botany in the University of Edin- 
Edinburgh, Director of the Geological Sur- burgh. 
vey of Scotland. Tue Ricut Rev. Bissop COTTERILL, D.D. 
