12 

 INDEX 



TO 



(E) ASTRONOMY. 



Aberration, Correction for . . 0250 



Determination of Constant 



of 3310 



Absorption by Earth's Atmo- 

 sphere . . . . . . . . 5400 



Addresses 0040 



Almueantar 2080 



Altazimuth 2080 



AsJrolabes 2030 



Astrology 9050 



Subdivision according to 



Countries and Epochs . . 9060 



Astronomy, Ancient . . . . POOO 

 Subdirisions accord- 

 ing to Countries and Epochs. . 9020 



Spherical 0100 



Theoretical 1000 



Atmosphere of the Earth, Figure 



of 1610 



Absorption by . . 5400 



Aurora . . . . . . . . 5400 



Baily's Beads 4340 



Bibliographies 0030 



Binary System, Spectroscopic . . 8600 



Biography 0010 



Bolometry 4200 



Calendars 9420 



Centre of Earth, Reduction to . . 0200 



Chairs, Observing . . . . 2020 



Chromospliere . . . . . . 4320 



Spectroscopy of, diu-ing 



Eclipse 4700 



without Eclipse, Spectro- 

 scopy of . . . . . . 4G30 



Chronographs .. .. .. 2100 



Chronometers .. .. .. 2100 



Clocks 2100 



Driving 20£0 



Clusters, Star . . . . . . 7700 



Spectroscopy of . . . . 8200 



Coelostats 2050 



Collections O06O 



Comets 6600 



Figure of . . . . . . 1680 



Orbits of 1130 



Spectroscopy of . . . . 6920 



and Meteors, Connection 



between 6700 



Comparison Spectra, Produc- 

 tion of 2250 



Congresses, Reports of . . . . 0020 



Constant of Aberration, Deter- 

 mination of . . . . . . 3310 



Constant of Precession and 



Nutation, Determination of . . 3320 

 Constants, Astronomical, Deter- 

 mination of by Observation . . 3300 

 Control Pendulums . . . . 2050 



Coordinates, Geocentric. . . . 0300 



Heliocentric . . . . 0300 



Transformation and Differ- 



ential Variation of .. .. 0110 



Corona 4240 



and Chromosphere . . 4300 



— — Moon on . . . . . . 4340 



Spectroscopy of, during 



Eclipse.. ! 4660 



without Eclipse , . . . 4070 



Correcting Lens for Spectroscopic 



