Index 



r Nature, 

 Vjunt 8, 1899 



Belting, VV. E. Langdon, 14 ; Applications of F^lectricity, 

 W. H. I'reoce, C.B., I'.K.S., 19; First Principles of Elec- 

 tricity and Magnetism, C. II. W. Biggs, 27; Construction 

 for the Direction of a Magnetic Line of Korce, Prof. A. Gray, 

 K.R.S., 32 : a Redetermination of the Ampere, I'rof. d. \V. 

 Patterson, Karl E. Guthe, 44 ; Ketlection of Kathode Kays, 

 II. Starke, 46 ; A. A. C. Swinton, 405 ; Reaction Pressure 

 of Kathode Kays, E. Riecke, 357 ; Eflect of Rontgen Rays 

 on Spark Discharges, H. Starke, 357'; the Density of the 

 Matter composing the Kathode Rays, VV. B. Morton, 368 ; 



■ Structure of Kattiode Light, E.Goldstein, 427 ; Kathodic Rays, 

 P. Villard, 563 ; Kathodic Rectifier for Induced Currents, 

 .1". \illard, 623; Disintegration of Incandescent Platinum and 

 Palladium Wires, VV. Stewart, 46 ; Cause of the Branly Changes 

 of Resistance, D. van Gulik, 46 : Coherers, E. Dorn, 46 ; 

 E. Aschkinass, 94 ; Use of Coherer, C. Behrendson, 357 ; 

 a very Sensitive Carbon Coherer, Thomas Tommasina, 

 503; an Influence Machine, VV. R. Pidgeon, 46; Electric 

 Currents produced by Runlgen Rays, ,\. VVinkelmann, 46 : 

 Magnetic Klux in Electrical Instruments, Albert Campbell, 

 47, 70; Continuity of Wave Theories, Lord Kelvin, G.C.V.O., 

 56; Death and Obituary Notice of M. de Meritens, 59; 

 Tesla's New Method of Power Transmission, 60 ; Method of 

 measuring Efiect of Stray Fields on Ammeters and Voltmeters, 

 1. 11. Reeves, 70 ; Propagation of Damped (Jscillations along 

 i'arallel Wires, Prof. VV. 15. .Morton, 70; Mathematical Ex- 

 position of Connection between VV'aveTrains from Damped 

 anil Undamped Sources, Oliver Ileaviside, 71 ; Hertzian 

 Telegraph without Wires in Paris, E. Ducretet, 71 ; Coast 

 Telegraphs and Space Telegraphy, Rollo Appleyard, 248 ; 

 Wireless Telegraphy, 606 : Wireless Telegraph Experiments, 

 300 ; the Progress of Wireless Telegraphy, 534 ; Use of 

 Vertical Wire in Marconi's System of Space Signalling. Dr. 

 Gerald Molloy, 335 ; Wireless Telegraphy between France 

 and England, 514 ; Compound VV'inding of Constant Volt.ige 

 Alternators, 71 ; Death and (Jbituary Notice of J. N. 

 Rafi'ard, 79 ; Electrical Transmission of Power in Mining, 

 \V. R. Essen, 80; Measurements on Discharge Tubes, E. 

 Wiedemann and G. C. Schmidt, 94 ; Production of Cry.stal- 

 lised Tungsten by Electrolysis, L. A. I lallopeau, 95 ; 

 •Galvanometers and Magnetic Dip, A. P. Trotter, 102 ; 

 Electro-motive Force of Palladium- Hydrogen Cell, D. J. 

 Shields, 107; an Ampere Balance, Prof. W. E. Ayrlon, F. R.S. , 

 and Prof L Viriamu Jones, F.R.S., 115; Radiation, H. M. 

 Francis Ilyndman, 123; Electricity made Easy, Edwin L 

 Houston, .Vrthur E. Kennelly, 124 ; Prof. Nernst's new In- 

 candescent L.amp, 132; the Nernst Electric Lamp, [ames 

 Swinburne, 376 ; Electrolytic Chlorate Works at St. Michel, 

 Savoy, 135; Convection Currents and Fall of Potential at 

 Electrodes caused by Rontgen Rays, J. Zeleny, 142 ; Die 

 Optik der Elektrischen Schwingungen, Prof. A. Righi, 

 148 ; Electrical Conductivity and Luminosity of Flames con- 

 taining Vaporised Salts, .Arthur Smithells, H. W. Dawson 

 and H. A. Wilson, 166; a Pocket Dictionary of Electrical 

 VV'ords, Terms, and Phrases, ICdwin J. Houston, 174 ; Vari- 

 ations Produced by Mechanical Traction in Dielectric Con- 

 stant of Glass, Dr. G. Ercolini, 183 ; Electric Dispersion in 

 Organic .Acids, Esters and Glass, K. F. Liiwc, 189 ; Contact 

 Electricity between Metals and Liquids, A Heydweiller, 190 ; 

 Distribution de I'energie par courants polyphascs, J. Rodet, 

 199; Electrical Stage Appliances, 212 ; Genesis of Electric 

 Spark, B. Walter, 214; Genesis of Point-Discharge, F:. 

 Warburg, 214 ; Properties of Stratified Brush Discharge in 



•Open Air, M. Toepler, 214; Influence of Pressure on Initial 

 Polarisation Cap.^city, .V. Chassy, 240 ; Kadioconductors with 

 Gold and Platinum Filings, E. Branly, 240 : the Discharge 

 of Electricity through G.i.scs, Prof. j. J. Thomson, F.R.S., 

 241 ; Small Accumulators, 245 ; Death and Obituary Notice 

 of Dr. E. F. A. Obach, 254 ; Photography with Enclosed 

 Arc Lamp, N. H. Brown, 255; Dust Figures of Electrostatic 

 Lines of Force, David Robertson, 263 ; Determination of 

 Direction of Vertical Atmospheric Electrical Currents by 

 Observations of .Atmospheric Electricity, J. Elster and H. 

 i'.citel, 278; Tests on Cadmium Standard Cells, S. N. 

 Taylor, 278 ; Variations of Resistance of F:iectrolytic Con- 



•ductor in Magnetic Field, H. Bagard, 287 ; .■Vction of 

 Magnetised ICIectrodes on Electrical Discharge Phenomena in 

 Karelicd t Wises, C. E. S. Phillips, 2S7 ; Velocity of Propa- 

 gation of Hertzian Waves, Drs. Boccara and Gandolfi, 301 ; 

 J low Experiments on Discharge of Negative Electricity of 



Light are aflfected by electrical State of Arc-vapours, Messrs. 

 Merritt and Stewart, 301 : Loss of IClectricity by I'>apor- 

 ation of IClectrified Water, H. Pellat, 311 ; a Treatise on 

 .Magnetism and Electricityl Andrew Gray, F'.R.S., 314; 

 Diminution by Tubes of Electro-dispersive Power of Kontgen 

 Rays, Prof. E. Villari, 328 ; Equivalent Resistance and In- 

 ductance of Wires to Oscillatory Discharge, Dr. E. H. 

 Barton, 332 ; Oliver Ileaviside, 332 ; a llydrodynamical 

 Hypothesis as to Electromagnetic Actions, Prof. (1. !•'. Fitz- 

 gerald, F'.R.S., 335; Lecture Notes on the Theory of 

 Electrical Measurements, Prof. W. A. Anthony, 339 ; High 

 ICIectromolive F'orce, Prof. John Trowbridge, 343 ; the 

 Nodon-Brettoneau Wood-seasoning .Methixl, 346 ; the Con- 

 stitution of the Electric Spark, Prof. Arthur Schuster, F.R.S., 

 G. Hemsalech, 350 ; .Nlobilities of Ions, F. Kohlrausch, 

 357 ; Motion of Charged Ion at Magnetic Field, Prof. T. J. 

 Thomson, 407 ; Magnetism by Alternating Currents, Max 

 Wien, 357 ; Induction Coils, W. Hess, 357 ; a New Method 

 of Demonstrating Hertz's Experiments, J. Prechi, 357 ; 

 V'ibrations in Field round Theoretical Hertzian Oscillator, Karl 

 Pearson, F. R.S., and Alice Lee, 358; Pyro- and Piezo- 

 Electricity, VV. Voight, 357 ; Gliding Discharge along pure 

 Glass Surfaces, M. Toepler, 357 ; Conduction of Electricity 

 by thin Sheets of Dielectrics, VV. Leick, 357 ; New Electro- 

 magnetic String Interrupter, L. Arons, 357 ; .Attenuation of 

 Electric Waves by Earth, Mr. Whitehead, 382 ; Prof. Oliver 

 Lodge, F'.R.S., 382 ; New Amperemeter and Voltmeter, with 

 long Scale, Benjamin Davies, 382 ; a New Current Interrupter 

 for Induction Coils, A. A. C. Swinton, 394 ; the Wehnelt Cur- 

 rent-Interrupter, Dr. John Macintyre, 438 ; A. A. C. Swinton, 

 477 ; R. J. Strutt, 510 ; William Webster, 510 ; Improvement 

 in Wehnelt's Electrolytic Interrupter, J. Carpentier, 623 ; 

 Scattering of Electric VVaves by Insulating Sphere, Mr. Love, 

 F'.R.S., 406 ; Applications of Electricity to Railway Working, 

 VV. E. Langdon, 409; Measurement of very small Induction Co- 

 efficients, H. Martienssen, 428 ; Electro Capillary Pheno- 

 mena I., S. VV^ J. Smith. 428 ; F^flect of Strain on Thermo- 

 Electric <,>ualities of Metals, M. Maclean, 428 ; Law of 

 Dilution of Electrolytes, R. T. Muller, 431 ; Radiation in a 

 Magnetic Field, Prof. A. A. Michelson, 440 ; the Origin of 

 -Atmospheric Electricity, Prof. Cleveland .Abbe, 452 ; Prac- 

 tical Work in Physics, Part IV., Magnetism and Electricity, 

 W. G. Woollcombe, 460 ; Langhans' New Incandescent 

 Lamp, 470 ; Experiments on Theory of Voltaic .Action, J. 

 Brown, 476 ; Combustion of Carbon in F^lectrolysis, S. 

 Skinner, 479 ; lonisation of Gas by " Entladungestrahlen," 

 Prof, y J. Thomson, 479 ; Remarkable Thermo- Electric 

 Behaviour of Alloys of Nickel Steel, Prof. VV. F". Barrett, 

 502 ; Electric Conductivity of Steel -Alloys, Prof. VV. F. 

 Barrett and VV. Brown, 502 ; Minor Variations of Clark Cell, 

 A. P. Trotter, 525 ; Criterion for Oscillatory Discharge of 

 Condenser, Dr. F:. H. Barton and W. B. Morton, S26 ; 

 Polarisation Phenomena in (,)uantilalive IClectrolytic Deter- 

 minations, Dr. Hugh Marshall, 527 ; Incre.ise of .Mean In- 

 tensity of Current by Introduction of Coil- Primary, H. 

 Pellat, 528 ; Electro- Negative Character of certain Unsaturated 

 Organic Radicals, Ernest Charon, 528 ; the .Vbsorption of 

 Hertzian VV'aves by Non-Metallic Bodies, Y-. Branly and G. 

 Le Bon, 575 ; Mode of obtaining Electric Figures showing 

 Lines of Force of Electric Field in Air, E. Baudreaux, 575 ; 

 Electrolysis and Electrosynthesis of Organic Compounds, Dr. 

 Walther Liib, 581 ; Propagation of ICIectrodynamic VVaves 

 along Wire, .V. Sommerfeld, 59S ; Polarisation and 

 Hysteresis in Dielectric Media, VV. .Schaufelljerger, 598 ; 

 Canal Rays, .V. Wehnelt, 59S ; New .Method of Detecting 

 Electric Waves, .A. Neugschwender, 59S ; Continuity of 

 Electric Discharge in Raretied .Air, Mr. Cantor, 59S ; Pro- 

 duction of IClectromotivc F"orces by Displacement of Masses 

 of Liquid of difllrenl conductivities under Magnetic Vction, 

 R. Blondlot, 599; Torsional Variation of FMeclrical Resist- 

 ance of Metals and their .Alloys, Coloman de Szily, 5(|() ; an 

 Inlio<luction to the Mathematical Theory of Attraction, 

 F'rancis A. Tarletnn, 604 ; .Absolute Determination of the 

 Ohm, Prof. Reginald A. Lessenden, 605 ; Electrical Deter- 

 mination of Soluble Mineral Matter in Soil, T. H. Means, 

 621 ; Unpolarisable F'lectrodes and .Alternate Currents, E. 

 VV'arburg, 621 ; Methods of Studying Slow Electric t)scilla- 

 tions, VV. Konig, 621 : New Method of Exhibiting IMectric 

 Wire Waves, VV. D. Cooliilge, 621 ; Alternate Current 

 ICnergy Consumed in the Vacuum Tubes, H. Ebirt, 621 ; 



