Index 



Increasing the Efficiency of Rontgen Ray Tubes, T. G. 

 Crump, 225 ; Electric Dust-Shadows produced by Rontgen 

 Rays, Prof. S. P. Thompson, 159 ; New Form of Apparatus 

 for the Production of Rontgen Rays, Benjamin Davies, 281 ; on 

 the Electric Convection following the Lines of Force produced 

 by the Rontgen Rays, 432 ; X-Ray Pictures obtainable with 

 Static Electricity, W. A. Rogers, 481 : Tesla Spark and X-Ray 

 Photography, Rev. Y. J. Smith, F.R.S., 594; the Discharge 

 of Conductors by the X-Rays, Spark and Silent Discharge, E. 

 Villari, 639 ; Self- Testing Resistance Box and Bridge, E. H. 

 GriiSths, F.R.S , 36, 165 ; Mr. E. H. Griffiths on a Special 

 Form of Resistance-Box, 567 ; Resistance-Box, F. W. 

 Burstall, 36 ; Bare Wire Resistance Thermometers, Slessrs. F. 

 W. and H. R. J. Burstall, 36 ; Experiment with Aluminium 

 Wire, Prof. Roberts- Austen, F.R.S.,37; Portable Apparatus 

 for Gas Testing in Electric Culverts, Prof. Clowes, 37 ; Origin 

 of Contact Electricity, C.Cristiansen, 45 ; Contact Electricity, 

 W. Nernst, 455 ; Polarisation and Resistance of Galvanic 

 Cell, Franz Streintz, 45 ; True Resistance of Electric Arc, 

 Messrs. Frith and Rogers, 69 ; Electromotive Properties of 

 Electrical Organ of Malapterunis electricus, Fras. Gotch, 

 F.R.S. , and G. I. Burch, 92 ; Dielectrics, R. Appleyard, 93 ; 

 Prof. Viriamu Jones' Value for the True Ohm, 93; New 

 Instrument for Direct Measurement of Frequency of 

 Periodic Currents, Mr. Campbell, 93 ; Dissipation of 

 Electricity by Vapour, Dr. Schwalbe, 95 ; Electrical 

 Behaviour of Vapours from Electrified Liquids, G. 

 Schwalbe, 311; Elements of the Mathematical Theory of 

 Electricity and Magnetism, J. J. Thomson, F.R.S., Prof. A. 

 Gray, 97 ; Elementary Treatise on Electricity and Magnetism 

 founded on Joubert's Traite Elementaire d'Electricite, G. C. 

 Foster, F.R.S., Prof. A. Gray, 97; All-round World Tele- 

 graphy, 106, 155; New Electric Lamp, T. A. Edison, 112 ; 

 Action of Light on Sparking Discharge, Prof Warburg, 120, 544 ; 

 the Electrical Resistance of Alloys, Lord Rayleigh, Sec.R.S., 

 154; Walter G. McMillan and Robert H. Housman, 171 ; 

 Electric Discharges in Vacuo, Siemens and Co., 159 ; Different 

 Effects of Superimposing small Alternating on Direct Current 

 Arc with Cored or Solid Carbons, J. Frith, 159 ; the Measure- 

 ment of very Large and very Small Alternating Currents, 

 Mr. Campbell, 165 ; Anomalous Dispersion of Liquids, P. 

 Drude, 1S9 ; Thermo-Couples of Amalgams and Electrolytes, 

 A. Hagenbach, 189; Atmospheric Electricity at Kew, Dr. C. 

 Chree, 190; the Story of Electricity, John Munro, 196; 

 Properties of Body having Negative Resistance, Prof. S. P. 

 Thompson, 214; Mr. Frith's Electric Arc, 214; Effect of 

 Strong Magnetic Field on Discharges in Vacuo, A. A. C. 

 Swinton, 238; Rev. Walter SIdegreaves, 367 ; Magnetic De- 

 tection of Electrical Waves, E. Rutherford, 239 ; Refrac- 

 tive Indices of Substances for very Short Waves, Dr. 

 A. Lampa, 298 ; Prof. J. Chunder-Bose on an Apparatus 

 for studying the Properties of Electric Waves, 567 ; 

 Mr. E. Rutherford, on a Method of Detecting Electro- 

 magnetic waves, 567 ; Dr. Zeeman's Measurements in Varia- 

 tion of Absorption of Electrical Waves, 640 ; Physiological 

 and Therapeutic Action of High Frequency Currents, A. 

 ■d'Arsonval, 264 ; Effect of Lightning, Worthington G. Smith, 

 J27 1 ; Electrolysis of Water, A P. Sokolow, 285; A 

 Treatise on Industrial Photometry, with special application 

 to Electric Lighting, A. Palaz, 289 ; Discharge of an 

 Electrified Body by means of the Tesla Spark, Rev. Frederick 

 J. Smith, F.R.S., 296 ; Inaction of High Frequency Currents 

 on Microbian Poisons, L. A. Marmier, 29S ; Dr. W. W. 

 Jacques's Carbon Consumption Cell, G. Stockbridge, 298 ; 

 C. T- Reed, 353 ; Effect of Magnetism on Electromotive Force, 

 A. H Bucherer, 311 ; Death of Sir William Grove, F.R.S., 

 324 ; Obituary Notice of Sir W. R. Grove, Prof. A. Gray, 

 F.R.S., 393; Electric Lighting in Belfast, V. A. H. 

 McCowen, 328 ; Cause of Production of Atmospheric Elec- 

 tricity, P. de Heen, 356 ; Cobra Venom destroyed by High 

 Frequency Currents, Dr. D'Arsonval, 372 ; the Volatilisation 

 of Refractory Substances in the Electric Furnace, H. 

 Moissan, 485 ; Researches with Electric Furnace, H. 

 Moissan, 598 ; Refractive Indices of Water and .\queous 

 Solutions, P. Drude, 544 ; the Principles of the Transformer, 

 Dr. F. Bedell, 545 ; Lord Kelvin on Measurements of 

 Electric Currents through Air at different Densities down to 

 one five-millionth of the Density of Ordinary Air, 566 ; 

 Keport submitted by the Committee on Electrical Standards, 

 567 ; Report submitted by the Committee on Electrolysis, 



567 ; Quantitative Methods of Electrolysis, 585 ; on the 

 Communication of Electricity from Electrified Steam to Air, 

 Lord Kelvin, Magnus Maclean, and Alexander Gait, 622 ; 

 Electrical Conductivity of Methyl Alcohol Solutions, Messrs. 

 Zelinsky and Krapiwin, 632 ; on the Time Relations of the 

 Activity of a single Nerve-cell, Prof, flotch, 634 ; Prof. 

 Waller on Conditions which Modify the Electrical Response 

 of an Isolated Nerve to Stimulation, 634 ; New Methods for 

 reading Deflections of Galvanometers, C. B. Rice, 639 



Elementary Schools, Science Teaching in, 585 



Elliot (D. G.), North American Shore Birds, 58 



Elliot (G. F. E. Scott), a Naturalist in Mid-Africa, being an 

 Account of a Journey to the Mountains of the Moon and 

 Tanganyika, 5 ; on the Influence of African Climate and 

 ^'egetatlon on Civilisation, 587 



Ellis (Havelock), the Colour-Sense in Literature, 41 



Elster (Prof.), Investigations as to the Cause of the Surface 

 ColourLsation of Colourless Salts (KCl NaCl) by the Kathode 

 Rays discovered by Goldstein, 567 



Elwes (Mr.), Prevention of Extinction of British Butterflies, 93 



Elworthy (F. T. ), on the Discovery of an Ancient British 

 Interment in Somersetshire, 611 



Embryology : Death of Mr. Hirota, 82 



Encouragement, French Societe d', Prize Awards, 252 ; Prizes 

 offered by the, 331 



Engelmann (Prof.), Origin of Normal Heart-movement, 360 



England and Germany, Sir H. E. Roscoe on Chemical 

 Education in, 585 



English and German Science, Prof Ostwald on, 285, 405 



Engineering : Institution of Mechanical Engineers, 19, 327 ; 

 Steam Superheating, Prof. W. C. Unwin, 20 ; Electric Weld- 

 ing of Steam Pipes, Samuel MacCarthy, 20 ; Proceedings of 

 Toronto Engineering Society, 83 ; the Nicaragua Canal, A. R. 

 Colquhoun, 127; Engineer Draughtsmen's Work, 148; Flax 

 Scutching and Hackling Machiner)', John Horner, 328 ; 

 Electric Lighting in Belfast, \'. A. H. McCowen, 328 ; Un- 

 usual Corroding of Marine Machinery, Hector McColl, 328 ; 

 Rope Driving, Abram Combe, 328 ; the Alumina Factory 

 at Larne Harbour, James Sutherland, 329 ; Death of R. W. R. 

 Birch, 446 ; Death of H. A. Resal, 446 ; the Microstructure 

 and Hardening Theories of Steel, A. Sauveur, 578 ; Death 

 of J. H. Greathead, 630 



Engines, Flying, Hon. Chas. A. Parsons, 148 



Enock (Fred), Aquatic Hymenoptera, 28 ; on Life-History ot 

 Tiger Beetle, 605 



Entomology : Breeding Habit of Periplaueta orunla/is, C. F. 

 Seiss, 72 ; Entomological Society, 93, 190 ; Effect of Tem- 

 perature on PupDe of Gonepterix rhamni, Mr. Merrifield, 93 ; 

 Prevention of Extinction of British Butterflies, Messrs. 

 McLachlan, Goss, Elwes, and Colonel Irby, 93 ; Butterflies 

 and Hybernation, W. Tyson, 125 ; Leiicaniaflavicolor, Mr. 

 Tutt, 190; New Forest Oaks stripped by Lepidopterous 

 LarviE, Mr. Waterhouse, 191 ; Difference between Enodia 

 hypcrantliKS and Epincphele ianira, Mr. Tutt, 191 ; Actino- 

 tyochaTcai. Phoronis, A. T. Masterman, 191 : Pa;domorphism, 

 Dr. G. H. Horn, 240 ; the Tsetse-Fly, L. Perlnguey, Walter 

 F. H. Blandford, 247 ; Eucalyptus Gall-making Coccids, C. 

 F'uller, 279 ; the Californian Trap-Door Spider, Dr. David- 

 son, 28S ; Vision-Range and Colour-Sense of Spiders, G. W. 

 and E. G. Peckham, 371 ; Dr. Weismann's New Experi- 

 ments on Seasonal Dimorphism of Lepidoptera, 326 ; Habits 

 and Distribution of Galeodes, Surgeon-Major E. Cretin, 366; 

 R. I. Pocock, 367; Dr. Gleadow, 574: Death of Miss G. 

 Ormerod, 401 : Shade-Tree Insects in the United States, 

 424 : a Cure for Locusts, 424 ; Catalogue of the Described 

 Diptera from South Asia, K. M. van der Wulp, 435 ; Ento- 

 mological Notes for the Voung Collector, W. A. Morley, 460; 

 Specific Characters among Mutillld;e, Prof. T. D. A. Cock- 

 erell, 461 ; Parasol Ants, J. H. Hart, 526 ; New Australian 

 Ai'aiicidir,'^ . G. Rainbow, 544; New Australian Coleoptera, 

 A. M. Lea, 544 ; Wasps as Flycatchers, R. M. Barrington, 

 549 ; Wasps and Flies, 595 ; Prof Meldola, 576 ; Eucalypts 

 and Loranths as Food-Plants, J. G. Fletcher, 592 ; Sub- 

 intestinal Nervous System of Platyphylliim giganleidii, L. 

 Bordas, 616 



Eozoon Canadensa^ James Thomson, 595 



Epidemics, Mental, Mediaeval, Boris SIdis, 5S9 



Erichsen (Sir John), Death of, 525 ; Obituarv Notice of, 548 : 

 Prof E. A. Schafer, F.R.S., 548 



Eskimo Throwing-Sticks, Dr. Otis T, .Mason, 271 



