m 
PAGE 
Monday, 7 th April 1878. 
Professor Geddes’s Theory of the “Iliad.” By Professor 
Blackie, . , , . , .103 
The Principles of the Algebra of Logic. Part III. — Applica- 
tion to certain Problems in the Theory of Probability. 
By Dr Alexander Macfarlane, . . .105 
Monday, 21 st April 1879. 
The Anatomy of the Northern Beluga (B. Catodon) com- 
pared with that of other Whales. By Morrison Watson, 
M.D., and Alfred H. Young, M.B., &c., Owens 
College, Manchester., . . . . .112 
Fifth Report of the Boulder Committee. By D. Milne 
Home, LL.D., ...... 113 
Notes by William Jolly, Inverness, on the Transportation of 
Rocks found on the South Shores of the Moray Firth, 178 
Observations on Boulders and Drift on the Pentland Hills. 
By Alexander Somervail, Edinburgh, . .186 
Notes on Drift and Glacial Phenomena on the Pentland 
Hills. By John Henderson, Curator of the Phreno- 
logical Museum, Edinburgh, . . . . 187 
References, by Dr Charles Maclaren and Professor Geikif, 
to Striae and Boulders on the Pentlands, . .189 
Remarks on the Boulder Report. By D. Milne Home, 
LL.D., ...... 192 
Quaternion Investigations connected withMinding’s Theorem. 
By Professor Tait, ..... 200 
Monday, 5th May 1879. 
The. Pituri Poison of Australia (Duboisia Hopicoodii, F. 
Mueller) : its Physiological Action and Active Principle. 
By Dr Thomas R. Fraser, Professor of Materia Medica 
in the University of Edinburgh, . . . 201 
On the Structure and Affinities of the Platisomidae. By Dr 
F. Traquair, ...... 203 
Note on the Probability that a Marriage entered into by a 
Man above the Age of 40 will be Fruitful. By Thomas 
Bond Sprague, M.A., . . . .203 
Monday , 19 th May 1879. 
Notice of the Death of the President of the Society. By 
Sir Alexander Grant, Bart., Vice-President, . . 208 
Why the Barometer does not always indicate the Real 
Weight of the Mass of Atmosphere aloft. A continua- 
tion of the Paper on this subject laid before the Society 
in Session 1876 and 1877. By Robert Tennent, . 212 
On some New Bases of the Leucoline Series. Part IT. 
By G. Carr Robinson and W. L. Goodwin, . . 224 
On a Calculus of Relationship. By Alexander Macfarlane, 
M.A., D.Sc., 224 
