CONTENTS. 
Opening Address, Session 1869- 70. By the Hon. Lord Neaves, Vice- 
President, ....... 2 
On the Geological Structure of some Alpine Lake-Basins. By Archi¬ 
bald Geikie, Esq., F.R.S., . . . . . .33 
Preliminary Notice of the Great Fin Whale, recently stranded at 
Longniddry. By Professor Turner, . . . .34 
Note on Aggregation in the Dublin Lying-in Hospital. By Dr 
Matthews Duncan, . . . . . .38 
On a Method of Economising our Currency. By Andrew Coventry, 
Esq., . . . . . . . .39 
On the Old River Terraces of the Earn and Teith, viewed in connec¬ 
tion with certain Geological Arguments for the Antiquity of Man. 
By the Rev. Thomas Brown, Edinburgh, .. . . .41 
Experiments on the Colorific Properties of Lichens. By W. Lauder 
Lindsay, M.D., F.R.S.E., F.L.S., . . . . .43 
On the Principles of Scientific Interpretation in Myths, with Special 
Reference to Greek Mythology. By Professor Blackie, . . 44 
On Reciprocal Figures, Frames, and Diagrams of Forces. By J. 
Clerk Maxwell, Esq,, F.R.SS. L. & E., . . . .53 
On the Extension of Brouneker’s Method. By Edward Sang, Esq., . 56 
On the Forces experienced by Solids immersed in a Moving Liquid. 
By Sir William Thomson, . . . . . .60 
On the Equilibrium of Vapour at a Curved Surface of Liquid. By 
Sir William Thomson, . . . . . .63 
On a Bow seen on the Surface of Ice. By J. Clerk Maxwell, Esq., 
F.R.SS. L. & E., . . . . . „ .69 
Note on the Atomic Volume of Solid Substances. By James Dewar, 
Esq., Lecturer on Chemistry, Veterinary College, Edinburgh, . 70 
Note on Inverted Sugar. By James Dewar, Esq., Lecturer on Che¬ 
mistry, Veterinary College, Edinburgh, . . * .77 
On the Flow of Electricity in Conducting Surfaces. By W. R. Smith, 
M.A., Assistant to the Professor of Natural Philosophy in the 
University of Edinburgh. Communicated by Professor Tait. (With 
a Plate.) . . . . . . . .79 
On the Kombi Arrow-poison (StrophantJms hispidus, DC.) of the 
Manganja district of Africa. By Dr Thomas R. Fraser, . . 99 
On Thebo-lactic Acid. By J. Y. Buchanan, M.A., . . . 103 
On the Bones of a Seal found in Red Clay near Grangemouth, with 
Remarks on the Species. By Professor Turner, . . .105 
On the Rate of Mortality of Assured Lives as experienced by Ten 
Assurance Companies in Scotland, from 1815 to 1863. By James 
Meikle, Esq. Communicated by Professor Tait, . . .115 
Notes on Indian Society and Life in the Age when the Hymns of the 
Rigveda were composed. By John Muir, D.C.L., LL.D., Ph.D., . 119 
On the Lake Basins of Eastern Africa. By Keith Johnston, Jun., 
Esq., F.R.G.S., ....... 122 
On the Steady Motion of an Incompressible Perfect Fluid in Two 
Dimensions. By Professor Tait, . . . . .142 
