INDEX. 
Addresses. — Introductory Address by 
the President, 2. 
President’s Address on Mari- 
time Engineering Practice, 80. 
Address by Mr R. T. Omond 
on Two Years’ Residence and Work 
at the Ben Nevis Observatory, 171. 
Concluding Address of Session 
1884-85, by Mr David Milne 
Hume, 351. 
by Mr Alexander Buchan, on 
presenting the Keith Prize to Mr 
John Aitken, 784. 
by Lord Maclaren, on pre- 
senting the Makdougall-Brisbane 
Prize to Edward Sang, LL.D., 784. 
— by Professor James Geikie, 
on presenting the Neill Prize to 
Mr B. N. Peach, 784. 
Review of Session 1885-86, 
by Mr Robert Gray, 975. 
Aitken (Mr John) on a New Form of 
Chromotrope or Chromomictor, 
116, 122. 
on Dew, 446. 
Further Remarks on Dew, 961. 
— on Radiation from Snow, 625. 
on Thermometer Screens, 632. 
Algoid Lake-Balls found in South 
Uist, by G. W. W. Barclay, 845. 
Alloys, their Electric Conducting 
. Power at their Melting Point, by 
Messrs H. Rainy and R. D. Clark- 
son, 686. 
Alternants. — On certain Theorems 
mainly connected with Alternants, 
by A. H. Anglin, M.A., 823. 
Aluminium, Peroxide of, 146. 
Alveolar Form of Cleft Palate and its 
Relations to the Incisor Teeth and 
Intermaxillary Bones, by Professor 
William Turner, 15. 
Amagat’s Manometre a Pistons libres, 
by Professor Tait, 947. 
Andrews (Mr Thomas). — Apparent 
Lines of Force on passing a Current 
through Water, 18. 
The Resistance during Re- 
crystallisation of Fused Salts of the 
Halogens, compared with some 
others and Glass, 275. 
Electro - Chemical Relations 
between Metals and Fused Salts, 647. 
Anglin (A. H.), M.A., Expressions for 
Areas of Rectilineal Figures, 336. 
on certain Theorems mainly 
connected with Alternants, 823. 
Antiquaries, London Society of. — 
Their Memorandum in reference 
to the Preservation of the Court 
Rolls of Manors, 683. 
Areas of Rectilineal Figures, Expres- 
sions for, by A. H.Anglin,M.A., 336. 
Atkinson (Mr G. Armstrong), M.B. — 
The Volumetric Estimation of In- 
organic Nitrites, 642. 
Atmometer, on an Application of, by 
Professor Tait, 115. 
Atolls (Coral). — See Coral Atolls. 
Atomic Weights and Densities of the 
Elements, by Professor Crum 
Brown, 530. 
Attraction between two Pieces of 
Matter at Distances of less than 
Ten Micro-millimetres, by Sir 
William Thomson, 625. 
Baillie (Lady Mary) of Polkemmet. — 
On a Remarkable Sunrise, 24. 
Balance for the Measurement of Ter- 
restrial Gravity, by Sir William 
Thomson, 683. 
Barclay (G. W. W.) on some Algoid 
Lake-Balls found in South Uist, 845. 
Barlow (Mr John James) on a New 
Method and Reagent for detecting 
Chlorides, Bromides, and Iodides 
in the presence of each other, and 
of Nitrates and Chlorates, 799. 
Beddard (Frank E.), M.A., F.L.S.— 
Observations on the Structure of 
Lumbricus complanatus, 451. 
on the Reproductive Organs 
in the Genus Eudrilus, 672. 
Ben Nevis. — The Diurnal Variation in 
the Direction of the Summer Winds 
on Ben Nevis, by Mr R. T. Omond, 
839. 
— The Meteorology of Ben Nevis, 
by Alexander Buchan, M.A. , 843. 
Ben Nevis Observatory. — Address by 
Mr R. T. Omond on Two Years’ 
Residence and Work at the Ben 
Nevis Observatory, 171. 
Ben Nevis. -Glories, Halos, and Coronse 
seen from Ben Nevis Observatory, 
by Mr R. T. Omond, 500. 
Observations on Earth Cur- 
rents in Ben Nevis Observatory 
Cable, by Mr H. N. Dickson, 530. 
Hygrometry of, by Mr H. N. 
Dickson, 950. 
Benzoylecgonin, its Action, by Dr 
Ralph Stockman, 771. Its Action 
