Nature, Dec. i, 1887] 



INDEX 



IX 



3ussingault (M.), Obituary Notice of, 134 



Dvinc Origin of Scarlatina, Researches on the, M. Picheney, 



624 



Dwer (Prof.), on Cramer's Gemma borne by Trichomanes 



alata, 593 



^wman (F. H. ), the Chemistry of Cotton Fibre, 569 



)wrey (James John), Fall of Peculiar Hailstones in Kingston, 



Jamaica, 153 



jzward (J. Lloyd), After-Glows, 245 



ackebasch's (Dr.) Explorations of the Cordilleras, 283 



•adford Philosophical Society, 431 



-ain and the Spinal Marrow, Duality of the, M. Brown- 



Sequard, 624 



•andis (Sir D., F. R.S. ), Garden Roses of India, 509 



raun (Dr. Carl), a New Cosmogony, A. M. Clerke, 321, 341 



•azil, Nepheline Rocks in, O. A. Derby, 286 



■ceding for Intelligence in Animals, Dr, H. Rayner, 246 



eton (Ph.), Measurement of Luminous Sensations in Function 



of the Quantities of Light, 480 



idge. Forth, 79 ; Structure and Progress of the, E. Malcolm 



Wood, 353 ; Machinery employed at the, William Arrol, 356 



igham (W. T.), Kilaucain 1880, 479 



indley (W.), Account of a Recent Visit to the Ancient Por- 



phry Quarries of Egypt, 595 



ines, on Ice and, J. Y. Buchanan, 9 



isbane University, Proposed, 13 



itain, South-East, on the Establishment of the Roman 



Dominion in, Sir G. B. Airy, F. R.S., 78 



ITISH Association, 158,231,323; General Arrangements, 

 348, 377 ; Sectional Procedure, Prof. Silvanus P. Thomp- 

 son, 151 ; Dr, Alfred W. Bennett, 197; Foreign "Visitors 

 at, 323 ; Exhibition of Specimens and Instruments at, 

 323 ; British Association and the Government of New 

 South Wales, 398 ; the Meeting for 18S9, 429 ; Inaugural 

 Address by Sir Henry E. Roscoe, M.P., D.C.L., LL.D., 

 Ph.D., F.R.S., V.P.C.S., President, 416 



Reports of Committees — Fourth Report of the Committee for 

 considering the Best Methods of recording the Direct Inten- 

 sity of Solar Radiation, 497 ; Report of the Electrical Stan- 

 dards Committee, 498 ; Report of the Committee on the Ben 

 Nevis Meteorological Observations, 498 ; Final Report of the 

 Committee appointed in August 1881, to co-operate with the 

 Meteorological Society of the Mauritius, in the Publication 

 of Daily Synoptic Charts of the Indian Ocean, for the Year 

 1861, 498 ; Fourth Report of the Committee for co-operat- 

 ing with Mr. E. J. Lowe in his Project of establishing on a 

 Permanent and Scientific Basis a Meteorological Observatory 

 near Chepstow, 498 ; Report of the Committee on Tidal 

 Observations in Canada, 499 ; Report of the Committee on 

 Magnetic Observations, 499 ; Report of the Committee on 

 Standards of Light, 499 ; Report of the Committee on 

 Differential Gravity Meters, 499 ; Report of the Committee 

 on the Translation of Foreign Scientific Memoirs, 499 ; 

 Report of the Committee on the Influence of Silicon on the 

 Properties of Steel, 516 ; Report of the Committee on the 

 Nature of Solution, 516; Report of the Conmittee on 

 Isomeric Naphthalene Derivatives, 516 ; Second Report on 

 the Cae Gwyn Cave, North Wales, by Dr. H. Hicks, 516 ; 

 Report of the Committee for obtaining Observations on 

 the Migrations of Birds at Light-houses and Light-vessels, 

 and of reporting on the same, 516 ; Report of the Committee 

 appointed for the Purpose of investigating the Flora and 

 Fauna of the Cameroons Mountain, 517 ; Report of the 

 Committee for continuing the Preparation of a Report on 

 our Present Knowledge of the Flora of China, 518 ; Report 

 of the Committee appointed to make Suggestions with 

 reference to the Production of a Bathy-hypsographical Map 

 of the British Isles and Surrounding Seas, 518 ; Report of 

 the Committee appointed for the Purpose of co-operating 

 with the Royal Geographical Society in endeavouring to 

 bring before the Authorities of the Universities of Oxford 

 and Cambridge the Advisability of promoting the Study of 

 Geography, by establishing Special Classes for the Purpose, 

 518 ; Report of the Committee appointed for the Purpose 

 of continuing the Inquiries relating to the Teaching of 

 Science in Elementary Schools, 518; Report of the 

 Egyptian Photographs Committee, 520 ; Report of the North 

 American Committee, 520 ; Report of the Electrolysis 

 Committee, Dr. Oliver Lodge, 520 



Section A {Mathematical and Physical Science) — Opening 

 Address by Sir Robert S. Ball, LL.D., F.R.S., President of 

 the Section, a Dynamical Parable, 424 ; New Electric 

 Balances, by Sir William Thomson, F. R. S., 522; on 

 the Application of the Centi-ampere, or the Deci-ampere 

 Balance for the Measurement of the E.M. F. of a Smgle 

 Cell, by Sir William Thomson, F. R.S., 522 ; Conduction 

 of Electricity through Gases, Prof. A. Schuster, F.R.S., 

 522 ; on the Nature of the Photographic Star Disks and the 

 Removal of a Difficulty in Measurements for Parallax, 

 Prof. Pritchard, F.R.S., 523 ; Instruments for Stellar 

 Photography, Sir Howard Grubb, F. R.S., 523 ; on the 

 Turbulent Motion of Water between Two Planes, by Sir 

 W. Thomson, F. R. S., 523; on the Theory of Electrical 

 Endosmose and Allied Phenomena, and on the Existence of a 

 Sliding Coefficient for a Fluid in Contact with a Solid, by 

 Prof. Lamb, F. R.S., 523; on the Ratio of the Two 

 Elasticities of Air, by Prof. S. P. Thompson, 523 ; a Null 

 Method in Electro-Calorimetry, by Prof. Stroud and Mr. 

 W. W. Ilaldane Gee, 523 ; Recent Determinations of 

 Absolute Wave-length, Mr. L. Bell, 524 ; on the Existence 

 of Reflection when the Relative Refractive Index is Unity, 

 Lord Rayleigh, 524 ; on the Action of an Electric Current 

 in hastening the Formation of Lagging Compounds, Dr. 

 Gladstone, F. R.S., 524; on the Magnetization of Iron in 

 Strong Fields, Prof. Ewing, F.R.S., and Mr. W. Low, 



546 ; on some Points in Electrolysis and Electric Con- 

 duction, Prof. G. Wiedemann, 546 ; on the Accuracy of 

 Ohm's Law in Electrolysis, Prof. Fitzgerald, F. R. S., and 

 Mr. F. Trouton, 547 ; Further Researches concerning the 

 Electrolysis of Water, Prof, von Helmholtz, 547 ; Ex- 

 periments on the Possible Electrolytic Decomposition of 

 Alloys, Prof. Roberts-Austen, F.R.S., 547 ; Experiments 

 on the Speeds of Ions, by Prof. Lodge, F.R.S., 547; on 

 Chemical Action in a Magnetic Field, Prof. H. A. 

 Rowland, 547 ; on the Electro-deposition of Alloys, by 

 Prof. S. P. Thompson, 547 ; on the Action of the Solvent in 

 Electrolytic Conduction, T. C. Fitzpatrick, 547 ; Industrial 

 Electro-deposition of Platinum, Prof. S. P. Thompson, 



547 ; Princeton Eclipse Expedition, Prof. C. A. Young, 

 547 ; Observations of Atmospheric Electricity, Prof. 

 Weber, 548 ; the Hygrometry of Ben Nevis, H. N. Dick- 

 son, 548 ; Different Varieties of Thunderstorms and a 

 Scheme for their Systematic Observation in Great Britain, 

 Hon. R. Abercromby, 548 ; on the Magnetization of 

 Hadfield's Manganese Steel in Strong Fields, Prof. J. A. 

 Ewing, F. R. S., and William Low, 548 ; on the Influence 

 of a Plane of Transverse Section on the Magnetic Permea- 

 bility of an Iron Bar, Prof. J. A. Ewing, F.R.S., and 

 William Low, 548 ; on the Magnetic Properties of Gases, 

 Prof. Quincke, 549 ; Final Value of the B.A. Unit of 

 Electrical Resistance as determined by the American 

 Committee, Prof. H. A. Rowland, 549 ; on Induction 

 between Wires and Wires, W. H. Preece, F. R. S., 549 5 

 on the Effect of Continental Lands in altering the Level 

 of the Adjoining Oceans, Prof. Edward Hull, F.R. S., 

 549 ; on a Standard Lamp, Prof. A. A. Vernon Harcourt, 

 F. R.S., 549; Expansion by Heat of Wires under Pulling 

 Stress, J. T. Bottomley, 550 ; Experiments on Electrolysis 

 and Electrolytic Polarization, W. W. Haldane Gee, Henry 

 Holden, and Chas. H. Lees, 550 ; on the Vortex Theory 

 of the Luminiferous Ether, Prof. Sir W. Thomson, F.R. S. 

 550 



Section B {Chemical Science) — Opening Address by Edward 

 Schunck, F.R. S., President of the Section, 442 ; the Atomic 

 Weight of Gold, by J. W. Mallet, F.R.S., 568 ; the Atomic 

 Weight of Zirconium, Dr. G. H. Bailey, 568 ; Torsion 

 Balances, Dr. A. Springer, 569 ; Integral Weights in 

 Chemistry, T. Sterry Hunt, 569 ; Action of Light on the 

 Hydracids of the Halogens in Presence of Oxygen, Dr. A. 

 Richardson, 569 ; the Present Position of the Alkali 

 Trade, A. E. Fletcher, 569 ; on the Constituents of the 

 Light Oils ofBlast-Furnace Coal Tar from the Gnrthsherrie 

 Works, Watson Smith, 569 ; a New Apparatus for con- 

 densing Gases by Contact with Liquids, Prof. Lunge, 569 ; 

 the Extent to which Calico-Printing and the Tinctorial Arts 

 have been affected by the Introduction of Modern Colours, 



g Cha"?. O'Neill, 569 ; Chemistry of Cotton Fibre, F. H. 

 Bowman, 569 ; Isomeric Change in the Phenol Series, 



