Y*\ - 
PROCEEDINGS 
I -- OF THE 
ROYAL SOCIETY OF EDINBURGH. 
S ^ SESSION 1884-85. 
CONTENTS. 
General Stamofy Meeting , Monday, 2Uh November 1884. 
Election of 1 Office-Bearers, . 
Monday , 1st December 1884. 
Introductory Address by the President, 
On the Distribution of Energy between colliding Groups of 
Molecules. By Sir W. Thomson, 
On the Dynamics of Reflection and Refraction in the Wave 
Theory of Light. By the Same, 
On Kerr’s Discovery regarding the Reflection of Light from 
a Magnetic Pole. By the Same, 
On an Improved Method of Measuring Compressibility. By 
Professor Tait, .... 
Monday , 1 5th December 1884. 
On the Theory of the Tides. Part I. By Ed. Sang, LL.D., 
On the Nature and Significance of the Structure known as 
Kupfler’s Vesicle in Teleostean Embryos. By Mr J. T. 
Cunningham, B.A. (Plates I., II.), . 
The Relations of the Alveolar form of Cleft Palate to the 
Incisor Teeth and the Intermaxillary Bones. By Prof. 
Turner, M.B., F.R.S., .... 
Apparent Lines of Force on passing a Current through 
Water. By Thomas Andrews, F.R.S.E., F.C.S., 
Wortley Iron Works, near Sheffield, . 
A* Proof that the Mean Square Relative Velocity of Two 
Points whose Velocities are p and q is p 2 + q 2 > By 
Professor Tait, . . • . 
Note on a Theorem of Clerk-Maxwell. By Professor Tait, 
Extraordinary Occurrence at House No. 7 York Place, 
Remarkable Sunrises on December 6th, 8th, and 11th, 1884. 
Described by W. E. MTntosh, Esq.; Lady Mary 
Baillie of Polkemmet; and Patrick Dudgeon, Esq., . 
Monday , 5th January 1885. 
Anatomy and Physiology of Patella vulgata. Part JL„ 
Anatomy. By R. J. Harvey Gibson, M.A. Com- 
municated by Professor Herdman, D.Sc., 
A Theory of Solution. By W. W. J. Nicol, M.A., B.Sc., . 
On the Salinity of the Water in the Firth of Forth. By 
Hugh Robert Mill, B.Sc., F.C.S. (Plates III., I V.,V.), 
Monday, 19 th January 1885. 
Notes on the Chemical Composition of the Cobalt and Nickel 
Ores of New Caledonia, with some Remarks on the Pro- 
perties and Uses of Metallic Nickel and Oxides of 
Cobalt. By J. B. Re adman, Esq., 
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