PROCEEDINGS 
ROYAL SOCIETY OF EDINBURGH, 
A^ol. XV. 
SESSION 1 8 8 7-8 8. 
CONTENTS. 
General Statutory Meeting, Monday, 28th November 1887. 
Election of Office-Bearers, 
' . Monday, 5th December 1887 
Chairman’s Opening Address, 
The Jubilee Prize, ..... 
Proposed Additions to the List of Honorary Fellows, 
The Edinburgli Equatorial in 1887 ; a Paper Avith tAvo Appendices. By C. 
PiAzzi Smyth, Esq., Astronomer-Royal for Scotland, 
On Cauchy’s and Green’s Doctrine of Extraneous Force to explain dynamically 
Fresnel’s Kinematics of Double Refraction. By Sir W. Thomson, 
On the Minimal Tetrakaidekahedron, Avith Exhibition ' of Models. By the 
President, ... 
Researchea on Micro-Organisms, including ideas of a new Method for their Des- 
truction in certain cases of Contagious Diseases. Part II. By Dr A. B. 
Griffiths, F.R.S. Edin., ....... 
On the Colour of the Skin of Men and Animals in India. By Robert Wallace, 
Esq., Professor of Agriculture and Rural Economy in the University of 
Edinburgh, . . ... 
Monday, iWi December 1887. 
On the Height and Volume of the Dry Land, and tiie Depth and Vol’ttm'e of the 
Ocean. By Dr John Murray, " . 
The Pineal Body {Ejpijphysis cerebri) in the Brains of the Walrus and Seals. By 
Professor Sir William Turner, M.B., LL.D., F.R.S., . . 
On a Method of graphically recording the Exact Time Relations of Cardiac 
Sounds and Murmurs. By Byrom Bramavell, M.D., and R. Milne 
Murray, M.B., . . . . . . . 
On Benzyl Phosphines. By Professor E. A. Letts and AV. AA’’heeler, Esq. 
A Criticism of the Theory of Subsidence as explaining the Origin of Cora 
Reefs. By H. B. Guppy, M.B., R.N. Communicated by Dr H. Mill, 
On the Compressibility of Water and of Different Solutions of Common Salt 
By Professor Tait, ....... 
Friday, 6th January 1888. 
On a Practical Constant- Volume Air Thermometer. By J. T. Bottomley, Esq. 
On the Roots of £2= - 1. By Dr Gustav Plarr. Communicated by Professo 
Tait, . . . . . ... 
On Vanishing Aggregates of Determinants. By Thomas Muir, LL.D., 
On a Simplified Proof of Maxwell’s Theorem. By Professor Burnside. Com 
municated by Professor Tait, ..... 
On some Glass Globes with Internal Cavities produced during Cooling. By J 
■ T. Bottomley, Esq., ...... 
Investigations on the Malpighian Tubes and the Hepatic Cells ” of tlic 
Araneina ; and also on the Diverticula of the Asteridea. By Dr A. B 
Griffiths, F.R.S. Edin., and Alexander Johnstone, F.G.S. Loud, am 
Edin., . . ... 
On the Thomson Effect in Iron. By Professor Tait, . . . 
Monday, \6th January 1888. 
Obituary Notices of former Vice-Presidents of the Society, 
Problem in Relationship. By Professor A. Macfarlane, D.Sc., 
On Transition-Resistance and Polarisation. By AV. Peddie, Esq., B.Sc., 
The Change in the Thermoelectric Properties of Tin at its Melting Point. By 
Allsrt Campbell, Esq., B.A., ...... 
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