XiV Index Nature, 
December 14, 1899 
Ebert (H.), Law of Development of Hittorfs Dark Space, 
635 
Fchinidz, the Rearing of Larva of, Prof. MacBride, 631 
Eclairage 4 Incandescence, |’, P. Truchot, 517 
Eclipses : Partial Eclipse of the Sun, -June 7, 63; the Total 
Eclipse of the Sun, May 1900, C. H. Davis, 133; the 
Indian Eclipse, 1898, EF. W. Maunder, 489; the Story of 
Eclipses, G. F. Chambers, 489 
Economic Entomology, 175 
Edgecombe (Dr. Wilfrid), Why People go to Spas, 416 
Edinburgh Chair of Physiology, the, 84 
Edinburgh Mathematical Society, 215 
Edinburgh Royal Society, 95, 191, 239, 311 
Edington (Alexander), Red-Water or Texas Fever, 91 
Edington’s (Dr.), Fungus-process for destroying Locusts, 16 
Edser (Edwin), on the Phase-changes associated with the 
Reflection of Light from a Fuchsine Film, 44 ; Measurement 
and Weighing, 221; a Lecture Experiment on the Relative 
Thermal Conductivities of various Metals, 244 
Education: Higher Education in Paris, A. T. Simmons, 10; 
Report of the London Technical Education Board, 141; 
Local University Colleges for London, 201; Science and 
Education, 324 ; Science Schools and Classes, 381 ; Chemistry 
for Continuation Schools, R. L. Taylor, 411; Sir Andrew 
Noble, F.R.S., on the Best Education for Engineers, 551, 
568; Rural Education, John C. Medd, 616; Prof. R. 
Meldola, F.R.S., 616 
Egg within Yolk of another, One Ilen’s, Mr. Herrick, 158 
Eginitis (D.), Seismic Observations in Greece, 1893-8, 240; 
Annales de l’Observatoire National d’Athénes, publiées par, 
266 
Egyptology : the Book of the Dead, E. A. Wallis Budge, 385 
Electricity : Wehnelt Interrupter, Dr. J. Macintyre, 8 ; Action 
of Wehnelt Interrupter, H. T. Simon, 383; Wehnelt’s 
Electrolytic Interrupter, A. Voller and B. Walter, 456; 
Experiments with Wehnelt’s Interrupter, E. Lecher, 456; 
Wireless Telegraphy, Prof. D. E. Hughes, 353; Oscil- 
lograph for Tracing Alternate-Current Wave-Forms, 44 ; 
Radio-constructors with Metallic Spheres, Edouard Branly, 47; 
an Improved Resistance-Box, 64 ; Luminosity of Rare Earths 
heated in vacuo by Kathode Rays, A. A. C. Swinton, 69 ; 
Kathode Rays, A. Wehnelt, 456, 576; Canaland Kathode Rays, 
P. Ewers, 635 ; Electrical Conductivity of Flames containing 
Salt Vapours, H. A. Wilson, 69 ; Criterion for Oscillatory 
Discharge of Condenser, Prof. W. B. Morton and Dr. Barton, 
79; Quadrant Electrometer for application to Alternating 
Current Measurements, Mr. Addenbrooke, 70; an Intense 
Source of Monochromatic Light, Ch. Fabry and A. Perot, 
71; Rontgen Rays and Convection Currents, John Zeleny, 
86; Influence of Gaseous Pressure on Electric Currents due 
to Rontgen Rays, W. Hillers, 383 ; on the Applicability of 
the Dissociation Theory to the Electrolysis of Aqueous Solu- 
tions containing Two Electrolytes with a Common Ion, J. G. 
McGregor, 86 ; Diffusion of Ions into Gases, J. S. Townsend, 
212 ; Comparative Efficiency of Condensation Nuclei of Posi- 
tively and Negatively Charged Ions, C. T. R. Wilson, 238; 
the Nature of Electric Sparks, B. Walter, 87 ; Coherers, A. 
Blondel, 87; Quantitative Investigation of Coherer, <A. 
Trowbridge, 516 ; Leakage from Charged Bodies at Moderate 
Temperatures, Prof. J. C. Beattie, 95; Electric Oscillations 
and Moist Contacts, E. Aschkinass, 117; Michael Faraday : 
his Life and Work, Silvanus P. Thompson, F.R.S., 123 ; 
the True Polarisation of Dielectrics placed in Electric Field, 
H. Pellat, 143; New Galvanometric Method, M. Féry, 168 ; 
the Volta Centenary Exhibition at Como, Prof. G. H. 
Bryan, F.R.S., 181; Rays emitted by Electrified Point, S. 
Leduc, 192; New Method of Detecting Electric Waves, A. 
Neugschwender, 212; Velocity of Electric Waves in Air, G. 
V. Maclean, 383; Thermal Insulators, W. Hempel, 212; 
Electrolytic Action in Neighbourhood of Crookes’ Tube, 
MM. H. Bordier and Salvador, 216; Electromotive Force 
produced in Flame by Magnetic Action, R. Blondlot, 215 ; 
Dictionary of Electrical Engineering and Chemistry in Ger- 
man, English and Spanish, Paul Heyne, Dr. E. Sanchez- 
Rosal, 221 ; an Improved Liquid Interrupter for Induction 
Coils, A. A. Campbell Swinton, 226; the Electrical Resist- 
ance of the Blood, Dr. Dawson Turner, 245; Wandering 
Globular Sparks, Stéphane Leduc, 264; the Reason for the 
Hissing of the Electric Arc, Mrs. W. E. Ayrton, 282, 302; 
Do Rarefied Gases possess Electrolytic Conductivity?, E. 
Bouty, 312; Dielectric Cohesion of Rarefied Gases, E. 
Bouty, 336; the Ignition of Fire-damp by Electricity, Herr 
Heise and Dr. Theim, 350; Effect of Torsion Resist- 
ance of Wires, Coloman de Szily, 352; the Instantaneous 
Disappearance of the Kerr Phenomenon, H. Abraham and J. 
Lemoine, 336; the Relation of Motion in Animals and 
Plants to the Electrical Phenomena associated with it, Sir J. 
Burdon-Sanderson, Bart., F.R.S., 343 ; Accurate Control of 
Frequency of Alternating Current, J. Zenneck, 384; Varia- 
tions of Peltier Effect in Magnetic Field, A. Pochettino, 400; 
a Hertz Wave Receiver, Rev. F. J. Jervis-Smith, F.R.S., 
436; Electric Welding of ‘ram-Rail Joints, 441 ; Cause of 
Change in Conductivity of Metallic Powder. T. Sundorph, 
456; New Vacuum Discharge Phenomenon, L. Fomm, 456; 
Electrostatic Dust Figures, David Robertson, 486; Induced 
Lightning Flash, C. E. Stromeyer, 511 ; Remarkable Light- 
ning Flashes, C. E. Stromeyer, 520; Prof. Henry Stroud, 
520; T. W. Backhouse, 520; F. H. Glew, 520; Dark 
Lightning Flashes, Dr. William J. S. Lockyer, 391, 570; 
Shelford Bidwell, F.R.S., 591; Resistance of Alloys, R. H. 
Weber, 540; Work consumed in Spark Gap, E. Riecke, 
540; Pressure in Electric Spark, E. Haschek and H. Mache, 
540; Potential Gradient at Anode, C. A. Skinner, 540; 
Electric Signalling on Pennsylvania Railroad System, 548 ; 
Diurnal Variation of Atmospheric Electricity, A. B. Chauveau, 
564 ; Electro-magnetic Theory, vol. ii., Oliver Heaviside, C. 
S. Whitehead, 589 ; Electro-chemical Fire Alarm, 575; Visit 
of the Institution of Electrical Engineers to Switzerland, Prof. 
Threlfall, F.R.S., 578; the Rheinfelden Power Station, 
Prof. Richard Threllall, F.R.S , 579; the Oerlikon Power 
Works, Prof. Richard Threlfall, F.R.S., 579; the Selnau 
Transformer Station, Prof. Richard Threlfall, F.R.S., 5793 
the Ziirich Polytechnicum, Prof. Richard Threlfall, F.R.S., 
580; the Kander Power Station, Prof. Richard Threlfall, 
F.R.S., 580; the Burgdorf-Thun Railway, Prof. Richard 
Threlfall, F.R.S., 580; Electric Fog-Alarm, 596 ; Explosive 
Effect of Electrical Discharges, J. Trowbridge, T. C. McKay 
and J. C. Howe, 611; the Life Story of Sir Charles Tilston 
Bright, Edward Brailsford Bright and Charles Bright, 613 ; 
Experiments with Silver Voltameter, K. Kahle, 623; 
Electric Charge of Freshly-prepared Electrolytic Gases, W- 
Kosters, 635 ; Law of Development of [Hittorf’s Dark Space, 
H. Ebert, 635 
Eliot (John), the Forecast of the Monsoon, 438 
Eliot (Mr.), the Air Movement in the Western Himalayas, 549 
Ellerman (F.), Spectra of Red Stars (Class III. 6), 186 ; Spectra 
of Red Stars (Secchi’s Type IV.), 429 
Elliott (Dr. D. G.), Sewellels, 427 
Elmendorf (Dr. L.), Photography with Telephoto Lens, 622 
Elsden (J. V.), Applied Geology, 148 
Elster (Prof.), Becquerel Rays and Magnetic Field, 230; 
Becquerel Rays, 623, 635 
Embryology: Death of Prof. Balbiani, 327; Obituary Notice 
of, 399 
mice (R.), Enzyme Negativing Action of Anthrax Bacillus, 
18 
Buel (R.), Copper Hypophosphite and its Decomposition by 
Precipitated Palladium, 588 
Engineering : Mechanical Engineering in War-ships, Sir Wm. 
H. White, K.C.B., F.R.S., 20; Death of G. F. Lyster, 84 ; 
the Slide Valve Simply Explained, W. J. Tennant, 149; a 
Manual of Locomotive Engineering, William Frank Pettigrew, 
Norman J. Lockyer, 193; Practical Dictionary of Electrical 
Engineering and Chemistry injGerman, English and Spanish, 
Paul Heyne, Dr. E. Sanchez-Rosal, 221; Death of H. W. 
Blake, F.R.S., 229 ; the South Devon Atmospheric Railway, 
Sir Frederick Bramwell, 327-8; the Corrosion of Metals by 
Sea-water, 375; Electric Welding of Tram-rail Joints, 441 ; 
Death and Obituary Notice of Edward Case, 536 ; Variations 
of Volume in Portland Cement resulting from Setting and 
Hygrometric State, M. Considére, 540; the Theory of the 
Pitot Tube and Woltmann Mill, Prof. A. Rateau, 549; Sir 
Andrew Noble, F.R.S., on the Best Education for Engineers, 
551, 568; Tables and Data, W. W. F. Pullen, 567 ; Death 
of John Donaldson, 575 ; Visit of the Institution of Electrical 
Engineers to Switzerland, Prof. Richard Threlfall, F.R.S., 
578; the Life Story of the late Sir Charles Tilston Bright, 
61 
England: Pair of Brazilian Marmosets Breeding in, Dora Whit- 
more, 199 
