Vlll 



Index 



r Nature, 



ly 28, n,io 



Carnegie Institution of Washington, Prof. G. E. Hale, 

 Prof. H. H. Turner, F.R.S., 97; the Solar Eclipse of 

 1912 April 17, M. D. Savitch, 108; Ephemeris for Eros, 

 1910, Prof. Wendell, 109 ; Prof. Doberck's Double-star 

 Observations, 109 ; Observations of Southern Double 

 Stars, Mr. Innes, 169 ; Measures of Double Stars, Mr. 

 Olivier, 320 ; Double Stars, Prof. Eric Doolittle, 506 ; 

 Daniel's Comet, igoge, Dr. Wolf, 109 ; Meteoric Astronomy, 

 Mr. Denning, 140 ; Stars with Variable Radial Velocities, 

 Messrs. Campbell, Albrecht, and Wright, 140 ; Dr. Curtis, 

 140 ; Precautions Necessary in Photographic Photometry, 

 Mr. Parkhurst, 140 ; Observations of Satellites, Prof. 

 Aitken, 140 ; Death and Obituary Notice of M. Charlois, 

 165 ; April Meteor Showers, John R. Henry, 189 ; April 

 Shooting Stars, Mr. Denning, 201 ; Sun-spots and Faculae 

 in 1909, Prof. Ricco, 169 ; the Nature of Comets' Tails, 

 Dr. L. Zehnder, 169 ; Periodic Errors in Right Ascension 

 of Standard Star Catalogues, Dr. Downing, 169 ; 

 the "Gazette Astronomique, " 169; the Galactic System, 

 its Structure and Origin, Dr. Karl Bohlin, 201 ; Saturn's 

 Satellites and Rings, Prof. Barnard, 201 ; the Formation 

 of Saturn's Ring System, Prof. Lowell, 291 ; the System 

 of € Herculis, Mr. Harper, 201 ; Theory of Fontenelle 

 relating to the Constitution of Comets, Wilfred de Fon- 

 vielle, 209 ; Wilhelm Olbers, sein Leben und seine Werke, 

 Brief wechsel zwischen Olbers und Gauss, 211 ; the Total 

 Solar Eclipse of May 8, 1910, Frank McClean, 259 ; 

 the Total Solar Eclipse, May 9, 1910, Dr. W. J. S. 

 Lockyer, 314; Frank K. McClean, Dr. William 

 J. S. Lockyer, 340, 494; Mr. Driffield, 383; Observa- 

 tions of Comets, Dr. Wolf, 231 ; Dr. Graff, 231 ; 

 Objective-prism Determinations of Radial Velocities, 

 Prof. Pickering, 231 ; Prof. R. W. Wood, 231 ; Stars 

 with Variable Radial Velocities, O. J. Lee, 383 ; the 

 Accuracy of Radial Velocity Determinations, Prof. Frost, 

 439 ; Encke's Comet, Dr. Backlund, 232 ; the Spectra of 

 the Major Planets, Dr. V. M. Slipher, 232 ; the Velocity 

 of the Solar System in Space, Prof. Stroobant, 291 ; 

 Star Colours, Prof. Louis Bell, 291 ; New Method of 

 Planetary Photography employed at the Lowell Observa- 

 tory at Flagstaff, Arizona, P. Lowell, 299 ; Solar Parallax 

 deduced from- Micrometric Observations of Eros in 1900 

 and 1901, Arthur R. Hinks, 299; Distribution of the 

 Filaments in the Upper Layer of the Atmosphere, H. 

 Deslandres, 299 ; Cometary Orbits, Messrs. Crawford and 

 Meyer, 320 ; Miss Levy and Mr. Meyer, 320 ; Maximum 

 of Mira, 1909, Herr May, 320 ; Herr Landwehr, 320 ; 

 Parallax of the Planetary Nebula G.C. 4373, Dr. Bohlin, 

 320 ; Fireball in Sunshine, W. F. Denning, 339 ; Death 

 and Obituary Notice of Sir William Huggins, K.C.B., 

 O.M., F.R.S., 342 ; the Spectra of Comets, Prof. Fowler, 

 349 ; Observations of Southern Nebulae, Mr. Innes, 349 ; 

 Observations of the Aurora, Prof. Barnard, 349 ; Aurora 

 Borealis, M. de Kerillis, 419 ; the Problem of the Resist- 

 ing Medium, Selig Brodetsky, 383 ; the Calcium Bands 

 at X 6382 and A 6389, Prof. Barnes, 383 ; Solar Activity. 

 383 ; the Solar Constant, Dr. Gorczynski, 409 ; Origin of 

 Binary Stars, Prof. H. N. Russell, 409 ; the Spectroscopic 

 Binary (8 Aurigae, R. H. Baker, 439 ; the Astronomical 

 Society of Antwerp, 409 ; Influence of Comets on the 

 Terrestrial Atmosphere According to the Kathodic 

 Theory, H. Deslandres, 418; the Brightness of the Sky, 

 Gavin Burns, 439; Meteoric Fireball of June i, W. F. 

 Denning, 444; the Meteor of June i, 468; the Earth and 

 Comets' Tails, R. T. A. Innes, 459 ; A. S. Hemmy, 459 ; 

 the Objective-prism Determination of Stellar Velocities, 

 Prof. R. W. Wood, 468 ; Coming Total Eclipses of the 

 Sun, Dr. Pio Emanuelli, 468 ; Lowell Observatory Photo- 

 graphs of the Planets, Prof. Percival Lowell at Royal 

 Institution, 472 ; an Easy and Concise Guide to the Starry 

 Heavens, arranged as a Companion to the Umbrella 

 Star Map and Revolving Star Dome for Instruction in 

 Astronomv, D. McEwan, 485 ; Observations of Orionids 

 in 1909, Prof. Dubiago, i^oi ; the Cape Observatory, Mr. 

 Hough, 501 ; July and August Meteors, 501 ; Distances 

 of the Red Stars, Prof. H. N. Russell, 506 : Standard 

 System of Photographic Stellar Magnitudes, Prof. E. C. 

 Pickering, 506 ; the Royal Observatory, Greenwich, 506 ; 

 Meteorite at Bombay, W. F. Denning, 533 ; Observa- 

 tions of Winnecke's Comet iqogi, R. Prager, 534; the 

 Motion of the Moon, Prof. E. W. Brown, 538; an Extra- 



ordinary Solar Filament, H. Deslandres, L. d'Azambuja 

 and V. Burson, 547 



Astrophysics : the Medium of Celestial Space, 526 



Atgier (Dr.), the Touareg, 137 



Athens, the Annual of the British School at, H. R. Hall, 

 462 



Atkins (W. R. G.), Cryoscopic Determination of the 

 Osmotic Pressure of some Plant Organs, 359 



Atkinson (G. T.), Marked Plaice in the North Sea, 317 



Atlantic and Mediterranean, Oceanographical Investigations 

 in the, 412 



Atmosphere, the Free, in the Region of the British Isles, 

 W. H. Dines, F.R.S., and Dr. W. N. Shaw, F.R.S., 

 E. Gold, 220 



Atmospheric Pressure, Neutral Doublets at, A. E. Garrett 

 and J. J. Lonsdale, 218 



.'\uerbach (Felix), Ektropismus oder die physikalisc' 

 Theorie des Lebens, 520 



Auger (V.), Alkaline Mangani-manganates, 29 



/3 Aurigae, the Spectroscopic Binary, R. H. Baker, 439 



Aurora, Observations of the. Prof. Barnard, 349 



Auroral Displays, Wilfred C. Parkinson, 169 ; S. L. 

 Elborne, 170; R. M. Deeley, 219 



Australasian Medical Congress, 337 



Avebury (Right Hon. Lord, F.R.S.), Ants : their Structure, 

 Development, and Behaviour, Prof. W. M. Wheeler, 515 



Aviation : Aeroplane Stability, Prof. G. H. Bryan, F.R.S., 

 10, 69; W. H. Dines, F.R.S., 68; Stability of 

 Flying Machines, Prof. Herbert Chatley, 45 ; Date 

 of Aviation Meetings, 41 ; Proposed Arctic Zep 

 pelin Airship Expedition, 41 ; Airship Passenger 

 Service, 74 ; the Farman Biplane, 200 ; Longitudinal 

 Equilibrium and Curvature of the Carrying Surfaces of 

 Aeroplanes, Ren^ Arnoux, 209 ; the London to Manchestef 

 Flight, Prof. G. H. Bryan, F.R.S., 278; M. Paulhan's 

 Aeroplane Flight from London to Manchester, 286 ; M. 

 Jacques de Lesseps' Flight on May 21, 379; Arrange 

 ments at the Nice Aviation Week, 379 ; Flight of C. S. 

 Rolls from Dover to Sangatte and Back, 434 ; Flight of 

 Airship Beta from Farnborough to London and Back, 



434 

 Azambuja (L. d'), an Extraordinary Solar Filament, 547 



Backe (A.), New Compound contained in Food Products, 89 



Backlund (Dr.), Encke's Comet, 232 



Bacterial Luminosity, the Spectrum of. Dr. R. W. 

 Forsyth, 7 



Bacteriology : Sewage-pollution of Shell-fish, James John- 

 stone, 77 ; Nitrogen-fixing Bacteria and Non-leguminous 

 Plants, Prof. W. B. Bottomley, 96 ; Soured Milk, its 

 Nature, Preparation, and Uses, Prof. R. T. Hewlett, 

 159 ; Stability of the Physiological Properties of Coliform 

 Organisms, Cecil Revis, 166 ; Presence of Virulent Germs 

 in the Atmosphere of Hospital Wards, E. Lesn^, R. '" 

 Debr6, and G. Simon, 299 ; Death and Obituary Notice 

 of Prof. Robert Koch, For.Mem.R.S., 402 ; Slime of the 

 Household Bath-sponge, Dr. R. Greig-Smith, 449 ; Koch's 

 Discovery of the Method of Plate-culture of Micro- 

 organisms, Prof. C. S. Sherrington, F.R.S., 458; Leprosy 

 Bacillus, Dr. Clegg, 499 



Baeyer (Otto von), Magnetic Deflection of j8 Rays, 369 



Bailey (E. B.), Recumbent Folds in the Highland Schists, 

 478 



Bailey (Sir W. H.), Mr. Myring's Recent Discoveries of 

 Prehistoric Pottery in Peru, 148 



Baillaud (J.), Halley's Comet, 430; the Transit and Tail of 

 Halley's Comet, 502; Change in the Nucleus of Halley's 

 Comet, 513 



Baily (Proif. F. G.), Stereoscopic Optical Illusion, 148 



Baines (Sir J. A.), the Recent Growth of Population in 

 Western Europe, Address at Royal Statistical Society, 193 



Baker (H. B.), Experiment on the Influence of Purification 

 in retarding the Action of Water on Sodium Amalgam, 292 



Baker (R. H.), the Spectroscopic Binary ;3 Aurigae, 439 



Baldet (M.), Halley's Comet, 201, 224 



Ball (Sir Robert), Halley's Comet, 290 



Ballore (M. de Montessus de), the Barograph considered 

 as a Recording Seismoscope, 30 



Banschiewicz (Dr.), Further Observations of Halley's 

 Comet, 470 



