Supplement to ate 
June 17, 1897 
Index XAG 
Eclipses: Total Solar Eclipse of August 9, 1896, 447; M. 
Deslandres, 235 
Eddies, Celestial, J. Norman Lockyer, F.R.S., 249 
Edinburgh: Earth Tremors at Edinburgh between August 25 
and September 6, Thomas Heath, 4; the New Research 
Laboratory of the Royal College of Physicians of Edinburgh, 
88 ; Edinburgh Royal Society, 190, 263, 334, 382, 431, 503, 
550, 599; Edinburgh Mathematical Society, 503, 575 
Education: the Newest German Polytechnic, Sir Philip 
Magnus, 34; the Work of the Scientific and Technical De- 
partment of the Imperial Institute, Prof. Wyndham R. 
Dunstan, F.R.S., 62 ; Handbook of Courses open to Women 
in British, Continental, and Canadian Universities, Isabel 
Maddison, Helen W. Thomas, Emma S. Wines, 100; the 
Position and Work of the Central Technical College, 284 ; 
the Ziirich Federal Polytechnic School, 537; the Resources 
and Needs of Cambridge University, 612 
Edwards (James), the Hemiptera-Homoptera of the British 
Islands, 389 
Eel, Common, the Discovery of the Larva of the, J. T. Cunning- 
ham, 467 
Eel, the Electric, J. J. Quelch, 508 
Effect of Electrical Discharge on Photographic Plate, James 
TPAnson, 581 
Eggers (Baron H.), the Asphalt Springs of El] Menito, 470 
Egoroff (N.), Partial Polarisation of Luminous Rays under Influ- 
ence of Magnetic Field, 575 
Egypt: Ancient Assyrian Bow found in Egypt, Henry Balfour, 
71; Winter Climate of Egypt, Dr. L. Canney, 215; an 
Egyptian Reading Book for Beginners, E. A. Wallis Budge, 
218 ; some Account of the Collection of Egyptian Antiquities 
in the possession of Lady Meux, of Theobald’s Park, Waltham 
Cross, E. A. Wallis Budge, 218 ; Plan to Generate Electricity 
at,the Nile Cataracts, 562; Recherches sur les Origines de 
Egypte, J. de Morgan, 578 
Ekenstein (W. Alberda van), Chitosamzne, 455 
El Menito, the Asphalt Springs of, Baron H. Eggers, 470 
Electric Eel, the, J. J. Quelch, 508 
Electricity : Diselectrification by Phosphorus, Shelford Bidwell, 
F.R.S., 6; Profs Elster and Geitel, Shelford Bidwell, 
F.R.S., 155 ; Discharge of Electricity by Phosphorus, J. R. 
Ashworth, 225; Hertz’s Miscellaneous Papers, 6 ; the Origin 
of Anti-kathodic Rays, P. De Heen, 13; Measuring Electro- 
lytic Conductivity by Continuous Currents, Prof. W. Stroud 
and J. B. Henderson, 23; Trevelyan Rockers, Mr. Apple- 
yard, 23; the X-Rays produced by a Wimshurst Ma- 
chinese 1; ea borer) 30)>) a eCorrection, 9 79is, _ Pro- 
duction of X-Rays, Dr. Oliver J. Lodge, F.R.S., 100; Influ- 
ence of Temperature and Pressure on Discharges by Roéntgen 
Rays, Jean Perrin, 119; Property of Rontgen Rays of 
inducing in Gases Power to discharge Electrified Bodies, Prof. 
E. Villari, 135 ; Electrostatic Dispersion of Réntgen Rays, 
Prof. Uno Panichi, 135; the Heating of Anodes in X-Ray 
Tubes, Walter Chamberlain, 198; Electrification of Air by 
Kontgen Rays, Lord Kelvin, F.R.S., Dr. J. C. Beattie, Dr. 
Smoluchowski de Smolan, 199 ; Dissociation of Neutral Elec- 
tricity produced in Gases by Rontgen Rays, Jean Perrin, 
232; Annulment by Ozonation of Discharging Power created 
by Rontgen Rays in Air, Prof. E. Villari, 326; Rontgen 
Rays and Phenomena of the Anode and Kathode, Edward 
P. Thompson, 386; on the Conductive Effect produced in 
Air by R6ntgen Rays and by Ultra-Violet Light, Lord Kelvin, 
F.R.S., Dr. J. C. Beattie, Dr. Smoluchowski de Smolan, 
343; Influence of Rontgen Rays on Explosive Distance of 
Electric Spark, M. Guggenheimer, 407; Discharge of 
Rontgen Rays, Jean Perrin, 454; a Powerful and Efficient 
Means of Driving X-Ray Tubes, Charles L. Norton, Ralph 
R. Lawrence, 460; on Apparent and Real Diselectrification 
- of Solid Dielectrics produced by Rontgen Rays and by 
Flame, Lord Kelvin, F.R.S., Dr. M. Smoluchowski de 
Smolan, Dr. J. C. Beattie, 472; on the Influence of Rontgen 
Rays in respect to Electric Conduction through Air, Paraffin, 
and Glass, Lord Kelvin, F.R.S., Dr. J. C. Beattie, and Dr. 
M. Smoluchowski de Smolan, 498; the Effect of Réntgen 
Rays on Solid and Liquid Insulators, Prof. J. J. Thomson, 
F.R.S., 606; Varying Electrostatic Stresses of Glass of 
Roéntgen Lamp, J. L. Thomas, 590; Simple Method of 
Separating Alternating Discharges in Vacuum Tubes, R. 
Hildebrand, 47; Foundations of Electrodynamics, E. 
Wiechert, 47; Concurrent Observations of Viscosity and 
Conductivity of Gelatinous Salt Solution, A. Griffiths, 47 ; 
Electrostatic Deflection of Kathode Rays, G. Jaumann, 47 ; 
E. Wiedemann, and G. C. Schmidt, 524; Photo-Electric 
Residual Action of Kathode Rays, J. Elster and H. Geitel, 
2; Longitudinal Tension of Kathode Rays, M. Colard, 
191; the Kathode Rays, Prof. J. J. Thompson, 453 ; Ex- 
periments with Two Kathodes, J. F. Tollenaar, 455 ; some 
Experiments with Kathode Rays, A. A. C. Swinton, 568 ; 
New Kathodie Apparatus, F. de Courmelles and G. Seguy, 
600; Method of Measuring Temperature of Incandescent 
Lamps, P. Janet, 48; Measurement of Force acting on Non- 
Electrified Dielectric Liquids in Electric Field, H. Pellat, 
48 ; Starting of Niagara Falls Machinery, 58 ; Mechanical 
Conceptions of Electrical Phenomena, Prof. A. E. Dolbear, 
65 ; Absorption of Waves along Wires of Terminal Bridge, 
Mr. Bryan and Dr. Barton, 70; Interference Refractometer 
for Electric Waves, O. Wiedeburg, 92; Index of Water- 
Refraction for Electric Waves, Prof. D. Mazzotto, 300; the 
Theory of Stationary Electric Waves along Wires, P. Drude, 
309 ; Effect of Capacity on Stationary Electrical Waves in 
Wires, Prof. W. B. Morton, 575; Rotations in Constant 
Electric Field, G. Quincke, 92 ; Helmholtz’s Absolute Electro- 
Dynamometer, K. Kahle, 92; the Cadmium Standard Cell, 
W. Jaeger and R. Wachsmuth, 92; Aluminium Amalgam, 
V. Biernacki, 92; Influence of Magnetisation on Electro- 
motive Force, U. Lala and A. Fournier, 95; Biedermann’s 
Electro-Physiologie, 99; Chemical Potentials of Metals, 
W. D. Bancroft, 110; Measurements of Electrolytic 
Dissociations of Organic Acids, H. Euler, 110; the 
Uranic Rays, H. Becquerel, 119, 454; an Error in 
Electro-magnetism, M. Vaschy, 191; Telegraphy without 
Wires, and the Guarding of Coast Lines by Electric 
Cable, Charles A. Stevenson, 197; Directed Electric Surface 
Conductivity, E. Braun, 214; Polarisation Phenomena in 
Vacuum Tubes, C. A. Mebius, 214; Electro-capillary Light, 
O. Schott, 214: Prof. Hermann’s Theory of Capillary Elec- 
trometer, G. J. Burch, 214; Photography by Impact of 
Dust-laden Current of Air, P. De Heen, 279; Treatment of 
High-tension Accumulators, L. Zehnder, 309; Dielectric 
Constants at Low Temperatures, R. Abegg, 309; Passage of 
Electricity through Gases, E. C. Baly, 309; Method of 
comparing Oscillations of Pendulums, with Aid of Electric 
Spark, G. Lippemann, 311 ; Absolute Electrometer for small 
Forces, MM. Pérot and Fabry, 327; Vertical Earth-air 
Electric Currents, Dr. L. A. Bauer, 327 ; Effect of surround- 
ing Gas-pressure on Temperature of Crater of Electric Arc, 
W. E. Wilson, F.R.S., and G. F. Fitzgerald, F.R.S., 332, 
514; M. Guillaume, 514; the Constitution and Functions of 
Gases, the Nature of Radiance and the Law of Radiation, 
Severinus J. Corrigan, 386; the Effect of Magnetisation on 
the Nature of Light emitted by a Substance, Dr. P. Zeeman, 
347 ; Death of Galileo Ferraris, 348; Rain-making by, Dr. 
W. Hentschel, 349; Fog-dispersal by, A. McAdie, 350; 
Dissipation from Conductor into Air, A. Oberbeck, 380; 
Point Discharge Potentials in Air and Hydrogen, K. Wesen- 
donck, 381; Discharge Rays, M. W. Hoffmann, 381 + 
Platinised Electrodes and Determinations of Resistance, F. 
Kohlrausch, 381; Electric Moment of Tourmaline, W. 
Voigt, 381; Sixty Years of Submarine Telegraphy, Prof. 
Ayrton, 403; Interferential Induction Balance, C. Barus, 
406 ; the Jacques Cell, Messrs. Liebenow and Strasser, 420 ; 
Thermo-Electric Qualities of Liquid Metals, Beckit Burnie, 
430; Electrolysis of Potassium Ethyl-Sulphone-Acetate, 
Prof. Crum Brown and Dr. Bolam, 431; on Electrical 
Equilibrium between Uranium and an Insulated Metal in its 
Neighbourhood, Lord Kelvin, F,R.S., Dr. J. C. Beattie, 
Dr. M. Smoluchowski de Smolan, 447; Electricity and 
Cloud-Formation in Gases, J. S. Townsend, 4533 the 
Universal Electrical Dictionary, 459; Electrolysis a 
Cause of Damage to Pipes, 468; Electric Absorption 
of Nitrogen by Carbon Compounds, M. Berthelot, 503 + 
Spark Discharges and Hertz Oscillator, M. Swynge- 
dauw, 503; Action of Silent Discharge in Gases, Emile 
Villari, 503; Practical Electrical Measurements, Ellis H. 
Crapper, 507; Effect on Plants of, A. S. Kinney, 514; De- 
monstration, of Course of Variable Currents, F. Braun, 524 ; 
Les Piles Electriques, Ch. Fabry, 5333 Submarine Cable 
Laying and Repairing, H. D. Wilkinsoa, Charles Bright, 
553; Plan to Generate Electricity at the Nile Cataracts, 562 E 
Alternating Currents in Concentric Conductors, W. A. 
Price, 575; a Galvanometer Support, W. A. Price, 575 > 
Partial Polarisation of Luminous Rays under Influence of 
