11 
Monday , 7th February 1870. 
PAGE 
On Reciprocal Figures, Frames, and Diagrams of Forces. 
By J. Clerk Maxwell, Escp, F.R.SS. L. & E., . 53 
On the Extension of Brouncker’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 
Monday, 21 st February 1870. 
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 Chemistry, 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 (Stropdianthus 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 G-range- 
mouth, with Remarks on the Species. By Professor 
Turner, . . . . .105 
Monday , 7th March 1870. 
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 
Monday , 21st March 1870. 
On the Lake Basins of Eastern Africa. By Keith Johnston, 
Jun., Esq., F.R.G.S., ..... 122 
For continuation of Contents, see pp. 3 and 4 of Cover. 
