Index 



u 



1906 



Morgan, 518; Orbital Elements of Two Meteors, Dr. P. 

 Moschick, 161 ; Magnetic Disturbance during the Recent 

 Auroral Display, Th. Moureaux, 161 ; the Zodiacal Light 

 to the North of the Sun, Prof. Newcomb, 161 ; Discovery 

 of a Third New Comet, 1903d, Mr. Slipher, 182 ; the 

 Recent Aurora and Magnetic Disturbances, 182 ; the 

 Intrinsic Light of the Corona, Chas. Fabry, 182 ; Sug- 

 gested Name for Neptune's Satellite, M. Fouche, 1S2 ; 

 the Companion to the Observatory, 1906, 1S2 ; Sun-spot 

 Periods, Prof. A. Schuster, 190 ; the Periodogram and its 

 Optical Applications, 2 ; (he Periodicity of Sun-spots, 

 Prof. Arthur Schuster, F.R.S., at Royal Society, 37S ; 

 Sun-spot Spectra, Profs. Hale and Adams, 425 ; High- 

 levnl Chromospheric Lines and their Behaviour in Sun- 

 spot Spectra, Prof. A. Fowler, 599 ; Astronomical 

 Observations recorded in the Nihongi, the Ancient 

 Chronicle of Japan, E. B. Knobel, 190 ; Effect of the 

 Lunar Deflection of the Vertical on Latitude Observ- 

 ations, B. Cookson, 191 ; How to Know the Starry 

 Heavens, Edward Irving, 196 ; Measures of Double 

 Stars, Messrs. Lewis, Furner, and Bowyer, 208 ; Micro- 

 meter Measures of Double Stars, H.~ E. Lau, 232 ; 

 Micrometer Measures of Struve Double Stars, Dr. H. E. 

 Lau, 493 ; Double Star Orbits, Prof. Doberck, 303 ; 

 Graphical Method for Finding the Time of Moonrise, 

 Fr. W. F. J. Rigge, 20S ; Further Results obtained with 

 the Spectroheliometer, Dr. J. Halm, 215; a Fourth New 

 Comet (1905c), 232 ; the Expected Return of Comet 

 1S92 V, J. Coniel, 232 ; French Astronomical Annuaires, 

 233; Astronomical Refraction, C. J. Merfield, 240; Death 

 of Prof. C. J. Joly, F.R.S., 251 ; Obituary Notice of, 

 273 ; Ephemeris for Holmes's Comet (1892 III., 1899 II.), 

 H. J. Zwiers, 255 ; Photographs of the Solar Granula- 

 tions, Prof. Hansky, 255 ; the Orbit of (* Ursa; Majoris, 

 N. E. Norlund, 255 ; the Great Gnomon of Florence 

 Cathedral, 238; Philips' Large Planisphere, H. Gewecke, 

 269 ; Theory of the Motion of the Moon, Ernest W. 

 Brown, F.R.S., 272 ; a New Method of Determining the 

 Moon's Position Photographically, Mr. Wade, 352 ; the 

 Apparent Enlargement of the Moon at the Horizon, Ed. 

 Claparede, 400; the Figure of the Sun, Dr. C. L. Poor, 

 279; Stellar Magnitude of the Sun, Prof. Ceraski, 279; 

 Variability of Iris, Dr. H. Clemens, 279 ; Periodical 

 Comets due to Return this Year, W. T. Lynn, 305 ; the 

 Annular Nebula in Cygnus (N.G.C. 6894), G. Tikhoff, 

 305 ; Right Ascensions of the Eros Comparison Stars, 

 Dr. Fritz Cohn, 305 ; Observations of Nova Geminorum, 

 Dr. Graff, 305 ; Discovery of a New Comet, M. Brooks, 

 326 ; Dr. Palisa, 326 ; Comet 1906a, Messrs. Crawford 

 and Champreux, 352 ; Prof. Hartwig, 375 ; M. Ebell, 

 375, 400, 425, 494; MM. Rambaud 'and Sy, 407: Dr. 

 Abetti, 494; Observations of Standard Velocity Stars, 

 Mr. Slipher, 326 ; a Fire near the Mount Wilson Observ- 

 atory, 326 ; Prof. Hale, 375 ; Report of the Meeting of 

 the Solar Commission at Innsbruck, 332 ; a Catalogue 

 of Spectroscopic Binaries, Prof. Campbell and Dr. H. D. 

 Curtis, 332 ; Observations of the Lyrid Meteors, April, 

 1904, Dr. Jiff Kavan, 352 ; Notes on some Cornish 

 Circles, Sir Norman Lockyer, K.C.B., F.R.S., 366, 561 ; 

 Observations of Eros, 375 ; Catalogue of Stars within 

 Two Degrees of the North Pole, Dr. Caroline E. Fur- 

 ness, 375 ; the Increasing Period of /3 Lyra;, Dr. Alex. W. 

 Roberts, 375 ; the United States Naval Observatory, 

 Rear-Admiral Chester, 375 ; the Collected Mathematical 

 Works of George William Hill, 409 ; a 300-Year Climatic 

 and Solar Cycle, Thos. W. Kingsmill, 413 ; Transpacific 

 Longitudes, Dr. Otta Klotz, 417 ; Life of Pietro Tacchini, 

 I.. Palazzo, 425 ; the Heavens at a Glance, A. Mee, 423 ; 

 Fireball of January 27, 1906, W. F. Denning, 427; 

 Death and Obituary Notice of Prof. Samuel Pierpont 

 Langley, 443: Discovery of a New Comet, iqoiV\ Herr 

 Kopff, 44S : Dr. Valentiner, 448; Comet 10066, M. Ebell, 

 -•74. 544; Mr. Champreux, 474; Prof. Hartwig, 494; 

 Dr. Wirtz, 404, 544 : Prof. Max Wolf. 494 : the Ring 

 Nebula in Lyra. Dr. Newkirk, 448; Prof. E. E. Barnard, 

 448; a Cluster of Nebulae in Perseus. Dr. Max Wolf, 

 448; Twenty-five New Variable Stars. Miss Leavitt, 44S ; 

 the Glow surrounding the Lunar Crater Linne, Prof. 

 F. E. Barnard. 44S : Measurements of Linne' during the 

 Total Eclipse nf the Moon. Prof. E. C. Pickering. 56q ; 

 R. H. Frost, 569 ; the Lunar Eclipse of February 8. 



Dr. Wilson, 543 ; M. Qu^nisset, 345 ; First Photographs 

 of the Canals of Mars, Prof. Percival Lowell, 453 ; Re- 

 markable Variation in the Spectrum of 7 Bootis, Drs. 

 H. Ludendorff and G. Eberhard, 474; a Brilliant Fire- 

 ball, Mr. Denning, 474 ; the Leeds Astronomical Society, 

 474 ; Discovery of a New Comet (1906c), Mr. Ross, 494 ; 

 Mr. Morgan, 494 ; Dr. Stromgren, 518, 569 ; a Pro- 

 gramme of Solar Research, Prof. Hale, 494 ; Harvard 

 College Observatory, Prof. Pickering, 494 ; Catalogue of 

 3799 Bright Stars, J. Bossert, 493 ; the System of the 

 Stars, Agnes M. Clerke, Prof. R. A. Gregory, 305 ; New 

 Variable Stars in the Region about 7 Sagitta?, Prof. 

 Wolf, 518; some Tests of the Snow Telescope, Prof. 

 Hale, 518; Distillation of Titanium and the Temperature 

 of the Sun, Henri Moissan, 327 ; a Systematic Study of 

 Faint Stars, Prof. Pickering, 545 ; Stars having Peculiar 

 Spectra, Prof. Pickering, 543 ; Mrs. Fleming, 345 ; the 

 April Meteors, W. F. Denning, 360 ; John R. Henry, 

 560 ; the Temperature of the Sun, Henri Moissan, 569 ; 

 the Melbourne Observatory, 569 ; Mounting the 60-inch 

 Reflector at Harvard, 569 ; Our Stellar Universe, Thomas 

 Edward Heath, W. E. Rolston, 581 ; the Continuous 

 Spectrum of the Chromosphere, M. Deslandres, 592 ; 

 Objective-prism Determinations of Stellar Radial Veloci- 

 ties, Geo. C. Comstock, 592 ; the Observation of Long- 

 period Variables, Prof. Pickering, 592 ; Explanation of 

 the Apparent Secular Acceleration of the Earth's Orbital 

 Motion, P. H. Cowell, 59S ; Planetary Inversion, F. J. M. 

 Stratton, 599 ; der Bau des Fixsternsystems mit beson- 

 derer Berucksichtigung der photometrischen Resultate, 

 Prof. Hermann Kobold, 603 ; a la Poursuite d'une 

 Ombre, Prof. Moye, 606 ; Catalogue of Pleiades Stars, 

 Dr. R. S. Dugan, 617 ; Observations of Nebulae, M. 

 Bigourdan, 617 ; a Large Photographic Nebula in Scorpio, 

 Prof. Barnard, 61S 



Astrophysics : Replicas of Diffraction Gratings, R. J. 

 Wallace, 21; the Probable Volcanic Origin of Nebulous 

 Matter, Prof. J. M. Schaeberle, 296 



Atherton (W. H.), an Introduction to the Design of Beams, 

 Girders, and Columns in Machines and Structures, with 

 Examples in Graphic Statics, 1 



Atkinson (E. F. J.), Intramolecular Change leading to 

 the Formation of Naphthalene Derivatives, 262 



Atlantic, the Vertical Distribution of the Meteorological 

 Elements above the, Dr. A. L. Rotch and L. Teisserenc 

 de Bort, 440 



Atlas of the British Empire, Historical and Modern, 

 Specially prepared for Students, C. Grant Robertson and 

 J. G. Bartholomew, 4S4 



Atlas, Philips' Model, 484 



Atlas, the Survey, of England and Wales, J. G. Bartholo- 

 mew, 2 18 



Atmosphere, the Electric Production of Nitrates from the, 

 Prof. Silvanus P. Thompson, F.R.S., at Royal Institu- 

 tion, 355 



Atmosphere, the Exploration of the, over the Tropical 

 Oceans, Dr. A. L. Rotch and L. Teisserenc de Bort, 54 



Atmosphere, Ionisation of the, during Total Solar Eclipse, 

 Charles Nordmann, 208 



Atmospheric Circulation, the Pulse of the, Dr. W. N. Shaw, 

 F.R.S., 173 



Atom, the Death-knell of the, 132 



Atomic Disintegration, Prof. W. Meigen, 389 



Atomic Disintegration and the Distribution of the Elements, 

 Donald Murray, 125; Frederick Soddy, 131; Norman R. 

 Campbell, 132 ; Geoffrey Martin, 152 



Atomic Weight, Secondary Rontgen Rays and, Dr. Charles 

 G. Barkla, 363 



Atoms, the Form of, in Relation to the Spectra, Prof. F. 

 von Lindemann, 392 



Atwater (Prof. W. O.I. a Respiration Calorimeter with 

 Appliances for the Direct Determination of Oxygen, 

 276 



Audition, Mesure et DeVeloppement de 1', Dr. Marage, 

 Prof. John G. McKendrick, F.R.S., 292 



Aurora;, Magnetic Storms and. Dr. Charles Chree, F.R.S., 

 101, 173; F. C. Dennett, 152; Dr. Alexander Graham 

 Bell, 197; Prof. H. Gedmuyden, 197; the Recent Aurora 

 and Magnetic Disturbances. 1S2 ; Aurora of November 15, 

 Rowland A. Earp, 79 ; R. Langton Cole, So : Prof. 

 M. P. Rudzki, 246; Aurora? of November 15 and 



