ASTRONOMICAL PHENOMENA. 



AUBER, DANIEL F. E. 



87 



transit of Venus, 45 , Mr. Newcomb's paper 

 thereon, 45 ; proposal of Dr. Neumayer to the 

 Vienna Academy of Sciences, 46 ; a new com- 

 et, 47; spectra of Uranus and Neptune, 47; 

 asteroids, 47; the period of Algol, 47; the 

 star Eta Argus, 47 ; star-drift of the central 

 sun, 48 ; heating power of the stars, 48 ; new 

 theory of the milky-way, 49 ; distribution of 

 stars, 49 ; apparent size of celestial objects, 

 49 ; the Cordova Observatory, 50. 



XI. The temperature of the sun, Ericsson's 

 solar pyrometer, 43 ; influence of solar heat 

 on the earth's rotary velocity, 44 ; solar pro- 

 tuberances, 45 ; sun-spots, 46 ; eclipse photo- 

 graphs, 47; supposed changes in the moon, 

 48 ; moon's mass inferred from tides, 48 ; lu- 

 nar action on earth's shrinkage, 49 ; proposed 

 observations of Venus, 49 ; transits of Venus, 

 50; new theory about Jupiter, 50; Jupiter's 

 satellites, 51 ; asteroids, 51 ; comets, 51 ; com- 

 ets' tails, etc.j as electrical phenomena, 52 ; 

 spectrum of Uranus, 52 ; spectroscope and 

 nebular hypothesis, 52 ; scintillation of the 

 stars, 53 ; the star Eta Argus, 53 ; parallax of 

 Alpha Lyras, 53 ; isographic chart of the north- 

 ern heavens, 53 ; studies of the southern heav- 

 ens, 54. 



XII. The supply of solar heat, 35 ; elements 

 in the solar spectrum, 36 ; solar outbursts and 

 magnetic storms, 36 ; the sun's temperature, 

 36 ; the sun's rotation, 37 ; sun-spots and the 

 cholera, 37 ; sun-spots and the vine-crop, 37 ; 

 forms of solar protuberances, 38; planetary 

 influence upon solar activity, 38; asteroids, 

 39 ; lunar objects suspected of change, 39 ; 

 the transit of Venus in 1874, 39 ; the disin- 

 tegration of comets, 40 ; the motion of stars, 

 40 ; star-depths, 41 ; the star Eta Argus, 41 ; 

 spectroscopic study of nebulae, 41 ; spectra of 

 the planets, 42 ; observations in the southern 

 heavens, 42; photographing celestial objects, 

 42 ; the zodiacal light, 43 ; luminous matter in 

 the atmosphere, 44. 



XIII. Photography of southern star-clus- 

 ters, report of Prof. Sellack, 42 ; Mr. Ruther- 

 ford's method, 42; scintillation of the stars, 

 Mr. Burder's observations, 43 ; mapping the 

 southern heavens, Dr. Gould's report, 43 ; re- 

 cent estimates of solar temperature, 43 ; dif- 

 ferent methods of obtaining a knowledge of 

 high temperatures, 43 ; spectrum of the sun, 

 observations and experiments of Dr. Lockyer 

 and Dr. Frankland, 44; coronal atmosphere 



of the sun, Mr. Janssen's views, 44; varia- 

 tions in the diameter of the sun, Father Sec- 

 chi's observations, 44 ; Prof. Sporer's observa- 

 tions on the sun, 45 ; solar observations made 

 easy, 45 ; the zodiacal light, 45 ; lunar radia- 

 tion, 46 ; Biela's comet, 46 ; Encke's comet, 

 46 ; other comets, 46 ; telescopic observations 

 of meteors, 46; transit of Venus, 48; pro- 

 posed meeting at Washington, 48 ; great tele- 

 scope at Washington, 48 ; the Lalande medal, 

 49. 



XIV. Minute structure of the solar photo- 

 sphere, 64 ; the transit of Venus, 65 ; aste- 

 roids, 65 ; comets, 65 ; meteors, 65 ; the zo- 

 diacal light, 66; inner satellites of Uranus, 

 66 ; stellar parallaxes, 66 ; periods of binary 

 stars, 66 ; distribution of the bright fixed stars, 

 66; the companion of Procyon, 67; nebula 

 near Eta Argus, 67; Burnham's catalogue of 

 new double stars, 67 ; results of spectroscopic 

 observations, 68; gold medal of the Royal 

 Astronomical Society, 68; planetary researches 

 of Leverrier, 69 ; recent changes in the form 

 and position of nebulae, 69. 



XV. Solar researches, 49 ; sun's diameter, 

 49 ; transit of Veuus, 49 ; list of stations for 

 observation, 49-51 ; incidental results, 51 ; 

 Alexander's hypothesis, 52 ; asteroids, 52 ; 

 comets, 52 ; meteors, 52 ; Iowa meteorite, 53 ; 

 diameters of planets, 53 ; researches on the 

 Uranian and Neptunian systems, 53 ; color of 

 Uranus, 54 ; binary stars, 54 ; Burnham's sixth 

 catalogue of new double stars, 54. 



ATHANASIAN CREED. XIII. Declarations of 

 Anglican convocations concerning, 22. 



ATHENS, MO. I. Its situation, 45 ; skirmish 

 at, 46. 



ATHON, JAMES. XV. Decease of, 585. 



ATKINSON, ARCHIBALD. XII. Obituary, 602. 



ATKINSON, THOMAS W. I. Birth, 46 ; pur- 

 suits, 46 ; writings, 46. 



ATMOSPHERE. V. Auroras, 100; question 

 of the height of the atmosphere, 100, 101 ; 

 temperature, 102 ; relations of air to chemical 

 composition, 103. 



ATOCHA, A. A. XV. Decease of, 574. 



ATWOOD, JOHN MULLIKEN, a merchant and 

 philanthropist. XIII. Obituary of, 571. 



ATWOOD, Lieutenant WILLIAM. XI. Obituary 

 of, 587. 



AUBER, DANIEL FRANCOIS ESPRIT, musical 

 composer. XI. Birth, death, 54 ; career, 54, 

 55. 



