Ill 
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On the Reproduction of some Marine Diatoms. By George Murray, 
F.R.S.E., F.L.S., Keeper of Botany, British Museum. (With Three 
Plates), ........ 207 
On the Eliminant of a Set of Ternary Quadrics. By Thomas Muir, 
LL.D., 220 
On the so-called “ Hypoiodite of Magnesium.” By James Walker, D.Sc., 
Ph.D., and Sydney A. Kay, B.Sc., University College, Dundee, . 235 
Abstract of Paper “ On Intermediary Links between Man and the 
Lower Animals.” By Robert Munro, M.A., M.D., . . . 249 
Note on the Sensitiveness of the Skin to Weak Electric Currents, as 
compared with the Sensitiveness of a Telephone to the same Currents. 
By John G. M‘Kendrick, Professor of Physiology, University of 
Glasgow, . . . , . . . . 251 
A Research into the Nature of the Nucleins and Paranucleins of the 
Animal Cell. By T. H. Milroy, M.D., B.Sc., .... 254 
Theoretical Researches on the Daily Change of the Temperature of the 
Air. By Dr J. Halm. (With a Plate), .... 259 
The Intermediate Observing Station on Ben Nevis. By T. S. Muir, 
M.A., f. . . . ..... 280 
On the Electrolysis of Potassium Ethyl-Sulphone-Acetate. By Pro- 
fessor Crum Brown and Dr Herbert W. Bolam, . . . 297 
Note on an Analysis of Human Gastric Juice. By W. R. Lang, B.Sc., 
F.C.S., Chemical Laboratory, University of Glasgow. Communicated 
by Professor M ‘Kendrick, ...... 298 
On a New Form of Constant Volume Air Thermometer, which shows 
the Total Pressure directly, and may be graduated in Degrees by 
Temperature. By J. R. Erskine Murray, Assistant Professor of Elec- 
trical Engineering and Physics in the Heriot-Watt College, Edinburgh, 299 
On Photo-Chemical Action. By Professor John Gibson, . . 303 
On the Linear and Vector Function. By Professor Tait, . . 310 
On Electrical Properties of Fumes proceeding from Flames and Burning 
Charcoal. By the Right Hon. Lord Kelvin, G.C.V.O., F.R.S., and 
Dr Magnus Maclean, . , . . . . .313 
On Osmotic Pressure against an Ideal Semi-permeable Membrane. By 
the Right Hon. Lord Kelvin, LL.D., D.C.L., F.R.S., . . . 323 
Some Type-Specimens of Lepidoptera and Coleoptera in the Edinburgh 
Museum of Science and Art. By Percy Hall Grimshaw, F.E.S., . 326 
The Eliminant of a Set of Quaternary Quadrics. By Thomas Muir, 
LL.D., ......... 328 
On the Expression of any Bordered Skew Determinant as a Sum of Pro- 
ducts of Pfaffians. By Thomas Muir, LL.D., .... 342 
On the Eliminant of / (m) = 0, ^ = 0. By Thomas Muir, LL.D., . 360 
On the Resolution of Circulants into Rational Factors. By Thomas 
Muir, LL.D., ........ 369 
