E 



INDEX 



TO 



(E) ASTRONOMY. 



Aberration, Correction for 0250, 



Determination of Constant 



of 



Absorption by Eartb's Atmo- 

 sphere . . 



Addresses. . 



AJmucantar . . . . 20S0, 



Altazimuth . . . . 20S(\ 



Appulses, Calculation of 



Astrolabes 



Astrology 



Subdivision according to 



Countries and Epochs 



Astronomy, Ancient 



Subdiyisions ace rd- 



ing to Countries and Epochs. . 

 Practical 



Spherical . . 



Theoretical . . 



Atmosphere of the Eaith, Figure 



of .. 



Absor^jtion by 



Aurora 



Baily's Beads 



Bibliograpliies 



Binary System, Spectrosci pic .. 



Biograph y 



Bolometry 



Calendars 



Centre of Earth, Reduction to . . 



Chairs, Observing 



Chromosphere . . 4070, 4300, 



Spectroscopy during Eclipse 



without Eclij)se 



Chronographs 



Chronometers 



Circles (Graduation, etc.) 



Clocks 



Driving . . 



3100 Clusters, Star ., .. 1860,7700 



Spectroscopy . . . . 8200 



3310 Coelostats 2050 



Collected Works 0030 



5400 Collections 0060 



0040 Comets 6600 



£080 Figure 1680 



3080 Orbits 1130 



0350 Spectroscopy . . . . 6920 



2030 and Meteors, Connection 



9050 between 6700 



Comparison Spectra, Produc- 



9060 tionof 2250 



9000 Congresses, Reports of . . . . 0020 



Constant of Aberration, Deter- 



9020 mination of 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 Ccrrecting Lens for Spectroscopic 



4700 Observations 2250 



4G30 Cosmic Influence on Teirestrial 



2100 Phenomena 530O 



2100 Cosmogony 3290 



2100 Day 9350 



2100 Mean and True Solar , . 9370 



2050 Sidereal . . . . • . . 9360 



