Contents. 
v 
PAGE 
On the Termite as the Tropical Analogue of the Earth-Worm. By 
Professor Henry Drummond, . . . . .137 
On Peroxides of Zinc, Cadmium, Magnesium, and Aluminium. By 
J. Gibson, Ph.D., and R.M. Morrison, D.Sc., . . . 146 
On Papers by MM. Haas, Cleve, and Lecoy de Boisbaudran, on the 
Production of Peroxides by means of Peroxide of Hydrogen. By 
J. Gibson, Ph.D., and R. M. Morrison, D.Sc., . . . 152 
On Supersaturation. By W. J. Nicol, Esq., .... 154 
Effect of Pressure on the Temperature of Minimum Compressibility 
of Water. By Professor Tait, . . . . .155 
Note on the Variation by Pressure of the Melting-Point of Paraffin, 
&c. By W. Peddie, Esq. Communicated by Professor Tait, . 155 
Note on the Thermal Effects of Tension in Water. By G. N. 
Stewart, Esq. Communicated by Professor Tait, . . . 157 
Ou the Temperature of the Water in the Firth of Forth. By Hugh 
Robert Mill, B.Sc., F.C.S. (Plates VI.-VII.), . . .157 
The Relations of the Yolk to the Gastrula in Teleostean Embryos. 
By J. T. Cunningham, B.A., ..... 167 
Address by R. T. Omond, Esq., on Two Years 7 Residence and Work 
at the Ben Nevis Observatory, . . . . .171 
On Detached Theorems on Circulants. By Thomas Muir, Esq., LL.D., 172 
On the Hessian. By Professor Chrystal, . . . .172 
On the Distribution of Potential in a Thermo-Electric Circuit, open 
or closed. By Professor Tait. . . . . .172 
On the Volume of Mixed Liquids. By R. Broom, Chemical Labora- 
tory, Glasgow University. Communicated by J. T. Bottomley, 
Esq.,. . . . . . . . .172 
The Visual, Grating and Glass-Lens, Solar Spectrum, as observed in 
the Year 1884. By C. Piazzi Smyth, F.R.S.E., Astronomer-Royal 
for Scotland, ....... 174 
On Knots. Part III. (Amphicheirals). By Professor Tait, . .175 
On the Chemistry of Japanese Lacquer. By Hikorokuro Yoshida, 
Chemist to the Imperial Geological Survey of Japan. Communi- 
cated by Hugh Robert Mill, B.Sc., . . . .175 
On Atmospheric Electricity at Dodabetta. By Professor C. Michie 
Smith, . . . . . . . . 191 
Recent Photographs of Stars, described by C. Piazzi Smyth, Astrono- 
mer-Royal for Scotland, . . . . . .191 
On Theories of the Formation of Coral Atolls and Barrier Reefs. 
By John Murray, Ph.D., ...... 199 
Observations on Recent Calcareous Formations of the Solomon 
Group, and their bearing on the Theory of Formation of Coral 
Islands. By H. B. Guppy, M.D., R.N. Communicated by John 
Murray, Ph.D., . . , , , , .199 
