xliv 



Index 



r Nature, 

 \_Decetiiber lo, 1903 



and Spark Spectra, Prof. J. Hartmann, 163 ; the Wave- 

 length of the n Rays Determined by Diffraction, G. 

 Sagnac, 191 ; a New Series in the Magnesium Spectrum, 

 William Sutherland, 200 ; the Study of very Faint Spectra, 

 Harold K. Palmer, 208 ; Luminosity of the Ions, W. yon 

 Bolton, 211; the Spectra of Metals and Gases at High 

 Temperatures, Prof. J. Trowbridge, 234 ; Spectra of Neon, 

 Krypton and Xenon, E. C. C. Baly, 237; Influence of 

 Great Dilution on the Absorption Spectra of Highly Con- 

 centrated Solutions of the Nitrates and Chlorides of 

 Didymium and Erbium, J. E. Purvis, 239; Gases 

 Occluded bv Radium Bromide, Sir William Ramsay, 

 K.C.B., F.R.S., and Frederick Soddy, 246; Bactericidal 

 Action of Ultra-violet Radiations Produced by the Con- 

 tinuous-current Arc, J. E. Barnard and H. de R. Morgan, 

 261 ; Spectroscopic Observations of Nova Geminorum, 

 Prof. Perrine, 279 ; the Spectrum of Nova Geminorum, Dr. 

 H. D. Curtis, 425 ; La Structure des Spectres, Prof. Ch. 

 Fabry, 308 ; the Spectrum of o Ceti, Joel Stebbins, 330 ; 

 the Spectroscope in Astronomy, Agnes M. Gierke, Prof. 

 R. A. Gregory, 338 ; the Spectrum of Comet 1903 c, Dr. 

 Curtis, 376 ; ProL Perrine, 376 ; M. Deslandres, 424 ; the 

 Spectroscopic Binary ;3 Scorpii, V. M. Slipher, 37b ; 

 Effects of Absorption on the Resolving Power of Spectro- 

 scopes, Prof. Wadsworth, 376 ; a Coronae a Spectroscopic 

 Binary, Prof. Hartmann, 398 ; Application of the well- 

 known Ileliometric Device of the Divided Lens, J. R. 

 ,Milne, 408; Absorption Spectra, Prof. W. N. Hartley, 

 5D-Sc., F.R.S., F.R.S.E., 472 ; Intensity of Spectral Lines, 

 rRrof. Pickering, 491 ; Simplicity of the Spectra of the 

 Kathode Light in Gaseous Comp>ounds of Nitrogen and 

 ♦Carbon, H. Deslandres, 520 ; the Broadening of Spectral 

 .■Lines, G. W. Walker, 554 ; the Spyectrum of Hydrogen, 

 Louis A. Parsons, 554 ; Recent Spectrographic Observ- 

 ations of Novae, Prof. Perrine, 631 



Spherical Aberration of the Eye, W. L., 8 ; Edvi^in Edser, 8 ; 

 W. Betz, 8 



Spiegel (Dr. Leopold), Der StickstofT und seine wichtigsten 

 Verbindungen, 266 



Spiller (Gustav), the Mind of Man, 174 



Spirals in Nature and Art, Theodore Andrea Cook, 221, 296 



JSpot on Jupiter, Red, Stanley J. Williams, 208 



Spot on Jupiter, Retarded Motion of the Great Red, W. F. 

 Denning, 390 



Spots on Saturn, the, W. F. Denning, 229, 247, 279, 390; 

 J. Comas Sola, 425 



Stack (J. W.), an Ant Robbed by a Lizard, 600 



Standardisation of Electrical Pressures and Frequencies, 

 the, 631 



Stansfield (Prof. A.), the Overheating and Burning of Steel, 

 462 



.Stark (Dr. J.), Prof. J. J. Thomson's View that the Energy 

 of E^ecquerel Radiation Given out by Radio-active Sub- 

 stances is Produced by a Change in the Configuration of 

 Ihse Atom, 230 



.Starling (Prof. E. H., F.R.S.), a Post-graduate School of 

 Medicine, 555 



'Stars : Nova Geminorum, Prof. E. C. Pickering, 16 ; Prof. 

 Hale, 68 ; Prof. Frost, 68 ; Variability of Nova 

 Geminorum, Prof. E. C. Pickering, 89 ; Observations of, 

 Prof. Barnard, 207 ; Spectroscopic Observations of. Prof. 

 Perrine, 279 ; the Spectrum of. Dr. H. D. Curtis, 425 ; 

 Four Stars with Variable Radial Velocities, H. M. Reese, 

 17 ; Newly Determined Stellar Radial Velocities, Prof. 

 Vogel, 519; a Remarkable Algol Variable, Prof. E. C. 

 Pickering, 42 ; Parallax of the Binary System S Equulei, 



. W. J. Hussey, 69; Prof. A. A. Rambaut, 69; the Stellar 

 Heavens, Ellard Gore, loi ; the Spectrum of o Ceti, Joel 

 Stebbins, 330 ; Estimation of Stellar Temperatures, Prof. 

 Kayser, 353 ; Recently Determined Stellar Parallaxes, 

 Prof. A. Donner, 354; Prof. J. C. Kapteyn and Dr. W. 

 de Sitter, 354 ; the Size of Stellar Systems, 354 ; Observ- 

 ations of the Minima of Mira, Prof. A. A. Nijland, 354; 

 the Spectroscopic Binary |8 Scorpii, V. M. Slipher, 376; 

 a Catalogue of 1520 Bright Stars, 462 ; a Provisional 

 Catalogue of Variable Stars, Prof. W. M. Reed and Miss 

 A. J. Cannon, 491 ; Corrections to Existing Star Cata- 

 logues, G. Boccardi, 491 ; Errata in Various Star Cata- 

 logues, G. Boccardi, 555 ; Reported Discovery of a Nova, 

 Prof. Wolf, 580; Prof. Pickering, 580; Prof. Hale, 580; 

 Prof, Barnard, 580 ; Dr. Parkhurst, 580 ; the Opposition 



of Eros in 1905, Prof. Pickering, 580; Occultation of a 

 Star by Jupiter, T. Banachiewicz, 631 ; Herr Kostinsky, 

 631 ; Mr. Denning, 631 



State, the University in the Modern, 25, 241, 337 



Statics by Algebraic and Graphic Methods, Lewis J. John- 

 son, 5 



Statics, Graphical, Problems with Diagrams, W. M. Baker, 

 436 



.Statistics : Ages of German University Professors in 1901, 

 Dr. F. Eulenburg, 231 ; Health of the Great Armies of 

 Europe, Dr. V. Lowenthal, 605 



Stead (J. E.), the Restoration of Dangerously Crystalline 

 Steel by Heat Treatment, 462 ; Sorbitic Steel Rails, 462 



Steam : Fast Coaling Ships for Our Navy, E. H. Tennyson 

 D'Eyncouit, 208 ; Means for Converting a Moderate Speed 

 Steamer into One of Very High Speed for Warlike Pur- 

 poses, James Hamilton, 208 ; on Cross Channel Steamers, 

 Prof. J. H. Biles, 208; Modern Steam Turbines and their 

 Application to the Propulsion of Vessels, Hon. C. A. 

 Parsons, 209 ; Some New Features of Superheaters, Prof. 

 W. H. Watkinson, 209 ; A. F. Yarrow, 209 ; A. Morcom, 

 209; the Parsons Steam Turbine, 331; the Steamship 

 Route between the Bristol Channel and Jamaica, 489 ; 

 Flow of Steam from Nozzles, Prof. John Perry, F.R.S., 

 624 



Stebbing (E. P.), Departmental Notes on Insects that Affect 

 Forestry, loi 



Stebbins (Joel), the Spectrum of Ceti, 330 



Steel Institute, Iron and, 462 



Stellar Heavens, the, Ellard Gore, loi 



Stellar Parallaxes, Recently Determined, Prof. A. Donner, 

 354 ; Prof.. J. C. Kapteyn and Dr. W. de Sitter, 354 



Stellar Radial Velocities, Newly Determined, Prof. Vogel, 



519 

 Stellar Systems, the Size of, 354 



Stellar Temperatures, Estimation of. Prof. Kayser, 353 

 Stenhouse (E.), an Introduction to Nature Study, i;46 

 Stephan (M.), Eclipse of the Moon on April 11 at Marseilles, 



23 ; Comet 1903 c Discovered by M. Borrelly on June 21, 



239 

 Stephenson (George), Bust of, at Rome, 64 

 Stereochemistry, Recent Advances in. Prof. William J. 



Pope, F.R.S., at the Royal Institution, 280 

 Stereoskop, Das, Seine anvvendung in den technischen 



Wissenschaften, Uber Entstehung und Konstruktion 



Stereokopischer Bilder, Wilhelm Manchot, Edwin Edser, 



217 

 Sterry (J.), Photography by Rule, 619 

 Stevens (F. H.), a School Geometry, 147, 414 

 Stevens (M. White), Tables of Four-figure Logarithms, 270 

 Stevens (W. C), an Introduction to Botany, 364 

 Stewart (Prof. Hunter), the Spread of and Immunity from 



Asiatic Cholera, 309 

 Stewart (Walter), Radiation of Helium and Mercury in a 



Magnetic Field, 212 

 Stickstoff, Der, und seine wichtigsten Verbindungen, Dr. 



Leopold Spiegel, 266 

 Stokes (Sir George), Memorial to, 64 

 Stone Age : Persistence of the Palaeolithic Age in South 



Africa, Prof. S. Schonland, 165 

 Stone (W.), Reptiles and Amphibians from Arkansas and 



Texas, their I3earing on Previous Views as to the Zoo- 

 geographical Zones, 605 

 Stonehenge, Sunrise at, 180 



Stoney (Dr. G. Johnstone), the Mirror of the Crossley Re- 

 flector, 183 

 Stonyhurst College Observatory Report for 1902, 43 

 Stottner (J.), Nernst Lamps, 117 



Stoves, Products of Combustion in Gas and Oil, 382 

 Strachey (Sir Richard, F.R.S.), an Ancient Lava Plug like 



that of Mont Pel^e, 573 

 Strahan (A.), Geology of the South Wales Coal-field, 329 

 Strassburg, Seismological Congress in, 371 ; Earthquake 



Observatory in, 416 

 Stratton (George Malcolm), Experimental Psychology and 



its Bearing on Culture, 465 

 Strauss (M.), Radiations Emitted by Radio-active Lead, 143 

 Streams Examinations, Report of. Dr. Arthur R. Reynojds, 



Prof. R. T. Hewlett, 420 

 Stromgren (Prof. E.), Search Ephemeris for Faye's Comet, 



207, 461 



