31 



E 



INDEX 



TO 



(E) ASTRONOMY. 



Atnio- 



2080, 

 20S0, 



to 



Aberration, Correction for 0250, 

 Determination of Constant 



of 



Absorption by Earth's 



sphere . . 

 Addresses. . 

 Almucantar 

 Altazimuth 



Appulses, Calculation of 

 Astrolabes 

 Astrology 



Subdivision according 



Countries and Epochs 



Asti'onomy, Ancient 

 Subdivisions accord- 

 ing to Counti'ies and Epochs. . 

 Practical . . 



Spherical . . 



Theoretical . . 



Atmosphere of the Earth, Figure 



of 



Absorption by 



Aurora 



Baily's Beads 



Bibliographies 



Binary System, Spectroscopic . . 



Biography 



Bolometry 



Calendars 



Centre of Earth, Kcduction to . . 



Chairs, Observing 



Cliromosphere . . 4070, 4.300, 



Spectroscopy during Eclipse 



vvithout Eclipse 



Chronographs 



Chronometers 



Circles (Graduation, etc.) 



Clocks 



Driving 



3100 Clusters, Star .. .. 1860,7700 



Spectroscopy . . . . 8200 



3310 Coelostats 2050 



Collected Works 0030 



5400 Collections OOGO 



0040 Comets 6600 



3080 Figure 1680 



8080 Orbits 1130 



0350 Spectroscopy . . . . 6920 



2030 and Meteors, Connection 



9050 betwemi 6700 



Comparison Spectra, Produc- 



9060 tionof 2250 



9000 Congresses, Keports of . . . . 0020 



Constant of Abei-ration, Deter- 



9020 minationof 3310 



1900 Precession and Nuta- 



0100 tion. Determination of . . 3320 

 1000 Constants, Astronomical, Deter- 

 mination by Observation • . 3300 

 1610 Contact, Times of .. .. 4230 

 5400 Control Pendulums . . . . 2050 

 5400 Coordinates, Geocentric. . . . 0300 



4340 Heliocentric . . . . 0300 



0032 Transformation and Differ- 



8600 ential Variation .. .. 0110 



0010 Corona 4240 



4200 and Chromosphere . . 4300 



9420 Moon on 4340 



0200 Spectroscopy during Eclipse 4660 



2020 without Eclipse . . 4070 



4320 Correcting Lens for Spectroscopic 



4700 Observations 2250 



4G30 Cosmic Influence on Terrestrial 



2100 Phenomena 5300 



2100 Cosmogony 3290 



2100 Day 9350 



2100 • Mean and True Solar . . 9370 



2050 Sidereal 9360 



