XX 



Index 



[Nature, 

 Stpleiitber 21, 1916 



Argentine Republic, Natural History of the, 347 

 Arisaig-Antigonish District, Nova Scotia, M. Y. Williams, 



410 

 Arithmetic, part i., F. W. Dobbs and H. K. Marsden, 439; 



for Carpenters and Builders, Prof. R. B. Dale, 179 

 Armoured Men, Dr. Saleeby, 549 



Arsenious Jelly as a Preservative, F. R. Rowley, 472 

 Arts, Royal Society of, The Albert Medal of the, awarded 



to Prof. E. Metchnikoff, 386 

 Ascidioclava, Prof. H. B. Kirk, 19 

 Asia, Central, Explorations in. Sir Aurel Stein, 284 

 Association of Teachers in Technical Institutions, Confer- 

 ence of the, 334 



ASTRONOMICAL NOTES. 



Comets : 

 A New Comet, Prof. O. Backlund, 17; Comet 1915 a 

 (Mellish), C. O. Larppland ; E. C. Slipher, 17; Comet 

 1916 a (Neujmin), Prof. E. Stromgren, 46; Comet 

 19156 (Taylor), Prof. A. Berberich, 46; Comet 1916 a 

 (Neujmin), J. Fischer-Petersen and Mile. J. M. Vinter- 

 Hansen, 67; Comet 1915 c (Taylor), J. Braae ; Prof. 

 Schorr; Prof. E. E. Barnard, 67; Spectroscopic 

 Observations of Comets 1913/ (Delavan) and 1914 b 

 (Zlatinsky), N. v. Konkoly, 89 ; Definitive Orbit of 

 Comet 1802, K. Lundmark, 109; Comet 19160 

 (Neujmin), J. Braae; J. Fischer-Petersen, 130; Comet 

 1916 a (Neujmin), Prof. E. Stromgren, 148; Comet 

 1916a (Neujmin), 169; Comet 1916a (Neujmin), J. 

 Braae; J. Braae and J. Fischer-Petersen, 189; Comet 

 or Nebulous Minor Planet?, 268; Comet 1916 b (Wolf), 

 1916ZK (Planet), 288; A Possible New Comet, Prof. 

 Pickering, 289; Comet 1916 b (Wolf), 328; Comet 

 iQi6a (Neujmin), H. Svoboda, 348; Comet 19156 

 (Taylor), Jeffers and Neubauer, 369 ; Return of Daniel's 

 Comet (1909 e), S. Einarsson and M. Harwood, 369 ; 

 The Motion of the Nuclei of Comet 19156 (Taylor), 

 H. Thiele, 388; Comet 1916 b (Wolf), R. T. Crawford 

 and D. Alter, 410 ; Pons-Winnecke's Comet and the 

 Meteoric Shower of June 28, W. F. Denning, 451 



Eclipses : 

 The Total Solar Eclipse of February 3, 1916, 311; A 

 Partial Eclipse of the Moon, 410 



Instruments : 



Instruments for the Measurement of Solar Radiation, 

 R. S. Whipple, 169 ; The Great Meridian Circle of the 

 Paris Observatory, 249 ; Lowest Effective Power of a 

 Telescope, W. H. Steavenson ; M. A. Ainslie, 490 ; 

 The Thermopile in Photographic Photometry, H. T. 

 Stetson, 528 



Meteors : 



A Daylight Meteor, Capt. W. F. Tyler, 17 ; The Lyrid 

 Meteors of 19 16, W. F. Denning, 229 ; Large Daylight 

 Fireball, May 20, W. F. Denning, 288 ; The Shower 

 of Perseid Meteors, 348 ; A June Meteoric Display, 

 W. F. Denning, 388 ; A Bright Meteor, 410, 428 ; The 

 Extraordinary Meteoric Shower of June 28, 428 • Julv 

 Meteors, W. F. Denning, 490 ; The August Meteors, 

 W. F. Denning, 490 



Observatories •: 



U.S. Naval Observatory, 1915, Report of, 17 ; Smith- 

 sonian Astrophysical Observatory, Annual Report, 1915, 

 131 ; Mount Wilson Solar Observatory, Annual Report, 

 19 15, 189 ; Annual Report of the Paris Observatory, 

 249 ; Report of the Solar Physics Observatory, 528 



Planets : 

 A Transneptunian Planet, Dr. Lowell, 17 ; Opposition of 

 the Minor Planet (4) Vesta, G. Stracke, 88; The 

 Planet Venus, 109 ; Occultation of Mars, October 2, 

 1915, W. Voss, 148 ; Mercury, 189 ; Uranus, 220 ; 

 Mercury, Innes and Worssell, 229 ; Venus, 289 ; Mono- 

 chromatic Photographs of Planets, Prof. R. W. Wood, 

 471 ; The Polar Caps of Mars and Solar Radiation, 

 M. Antoniadi, 471 ; Distribution of the Poles of 

 Planetary Orbits, Prof. H. C. Plummer, 551 



Stars : 



The Orbit of VV Orionis, Z. Daniel, 46 ; Observations 

 of Variable Stars, Dr. C. Hoffmeister : Dr. G. Hornig, 

 46 ; Variable Stars in the Vicinit}' of R Corona 



Australis, 67 ; The Translational Motion of Binary 

 Stars, C. Luplau-Janssen, 131 ; The Radiation Laws 

 and Stellar Photometry, Dr. C. V. L. Charlier, 148; 

 A Cluster of Nebulae in Cetus, Prof. M. Wolf, 148; 

 Proper Motion of the Orion Nebula, J. Comas Soli, 

 169; The System of X Tauri, Prof. F. Schlesinger, 169; 

 T Tauri, 189 ; A New Variable Star having Nebulous 

 Envelope, R. T. A. Innes, 189 ; Variable Stars of Short 

 Period, Prof. E. C. Pickering, 207 ; The Motion of the 

 Sidereal Universe, R. K. Young and W. E. Harper, 

 208 ; The Wave-lengths of the Chief Nebular Lines, 

 208; The Rotation of Nebulae, W. W. Campbell and 

 J. H. Moore, 268 ; The Spectrum of Nova Geminorum, 

 No. 2, Adams and Pease, 311; The Visibility of Stars 

 in Daylight, G. Bigourdan, 328 ; The Constitution of 

 the Milky Way, Prof. C. V. Charlier, 369; The 

 Visibility of Stars in Daylight, 388 ; Variable Stellar 

 Spectra, H. Shapley, 428 ; Variable Stars near the 

 South Pole, Miss Leavitt, 471 ; The Spectroscopic 

 Binary <r Aquilae, F. C. Jordan, 507 ; Relative Lumi- 

 nosities of Sun and Stars, C. T. Whitmell, 528 



Sun : 

 The Solar Activity, 46; The Plane of the Solar Motion, 

 Prof, von S. Oppenheim, 109; Solar Variation, 131; 

 Solar Radiation, R. S. Whipple, 169 ; A Variation in 

 the Solar Rotation, H. H. Plaskett, 249 ; A Large 

 Group of Sun-Spots, 311; The Solar Activity, 328, 

 348 ; The Chemical Origin of Solar Radiation, Dr. 

 Briner, 349 ; On Centre-Limb Shifts of Solar Wave- 

 lengths, J. Evershed and Dr. T. Royds, 388 ; Origin 

 of Group G of the Solar Spectrum, Newall, Baxandall, 

 and Butler, 428 ; The Polar Caps of Mars and Solar 

 Radiation, M. Antoniadi, 471 ; A Sun-spot in High 

 Latitude, 490 ; A Large Solar Prominence, J. Evershed, 

 507 ; Relative Luminosities of Sun and Stars, C. T. 

 Whitmell, 528 ; Solar Variability, Abbot, Fowle, and 

 Aldrich, 551 



Miscellaneous : 

 A Possible Deflection of Light by a Moving Medium, 

 Prof. P. Zeeman, 67 ; An Atmospheric Effect of Solar 

 Kathode Rays, J. Maurer, 89 ; New Lines in the 

 Spectrum of Silicon, Prof. A. Fowler, 109 ; A New 

 Method for the Determination of Latitude, Dr. G. 

 Zappa, 109 ; Photo-Electric Photometry, Prof. J. 

 Stebbins, 207 ; Stereoscopic Spectroheliograms, Prof. 

 Hale, 249 ; The Pole Effect in the Calcium Arc, Gale 

 and Whitney, 268 ; Latitude Observations by Photo- 

 graphy, Dr. Ross, 311; The New Draper Catalogue, 

 328 ; The Spectrum of Coronium, Prof. Nicholson, 328 ; 

 Selenium Photometry, Prof. J. Stebbins, 349 ; Variation 

 of Latitude, Prof. F. Schlesinger, 369 ; Difference of 

 Longitude between Paris and Washington, B. Baillaud, 

 369, '^75 ; The Large Meteorite of February 13, 1915, 

 W. F. Tyler, 388 ; Arequipa Pyrheliometry, C. G. 

 Abbot, 410 ; Differential Measurement, H. H. Plaskett, 

 451 ; Wave-lengths in the Iron Spectra, Burns, Meggers, 

 and Merrill, 451 ; Banded Spectra from the Electric 

 Furnace, Dr. A. S. King, 507; Bright Display of 

 Aurora Borealis on August 27, W. F. Denning, 551 



Astronomy for Juvenile Readers, 139 ; Practical, Conference 

 of the Society for, 425 



Asymmetry in the Proper Motions and Radial Velocities of 

 Stars of Class B, C. D. Perrine, 396 



Athenaeum Club, Rev. E. W. Barnes, E. Newton, and 

 Prof. T. F. Tout elected Members. 41 ; W. B. Hardy, 

 Admiral Sir H. B. Jackson, and Sir G. A. Smith 

 elected Members, 127 



AthencEutn Subject-index, 16, 66 



Atmospheric Conditions, Influence of, on the Trajectories 

 of Long-range Projectiles, M. de Sparre, 175 ; Electrical 

 Variations, E. H. Nichols, 115; Electricity. R. A. W. 

 Watt, 161 ; Pressure and Rainfall, The Relation be- 

 tween, Lieut. F. H. Chapman. 374 



Atom, Magneton Theory of the Structure of the, A. L. 

 Parson, 288 



Atomic Weights, Numerical Values of the. Prof. O. D. 

 Chwolson, 88 



Auditory Vesicle of the Embryo Toad, Removal and Trans- 

 plantation of the, D. Filatoff, 351 



Aurora Borealis, Altitude of, C. Stormer, 115; Bright 



