INDEX. 



Absorption, 13, 14. 



in space, 131. 



phenomena, Jewell, 104. 



solar lines, 15. 



Acetylene, spectrum of, 20. 

 Achernian stars, 70. 

 Alchemy, 164. 

 Aldebarian stars, 70. 

 Algrolian stars, 70. 

 Alnitamian stars, 70. 

 Aluminium, series of, Cornu, 87. 

 Ames, Zeeman effect, 112. 

 Antarian stars, 70. 

 Arcturian stars, 70. 

 Arcturus, see Bootis a. 

 Argonian stars, 70. 

 Asterium, series, 95. 

 Atmospheres, stellar, 55. 

 Atomic weight and periodic law, 176. 



series, 93. 

 Atoms, chemical, 18. 



conception of, 185. 



dissociation of, 73. 



of oxygen, 96. 



simple, 190. 



vibration period of, 103. 

 Auriga, nova in, 138. 

 Aurig-se a, absorbing layer, 52. 



Balmer's law, 86. 

 Bauschinger, 128. 

 Berthelot, on dissociation, 28. 

 Boisbaudran, de, 86, 117. 

 Bootis o, absorbing layer, 52, 150. 

 Brodie, chemical elements, 166. 

 Budg-e, Dr., 67. 



C. 



Calcium, behaviour of, 106. 



dissociation, temperature of, 106. 



enhanced lines, 37. 



pressure shift, 106, 147. 



proto-, behaviour of, 64. 



series in, 97. 

 Calculus, chemical, 166. 



Camera, prismatic, 43. 

 Campbell, bright line stars. 133. 

 Canis majoris a and a Cygni, compari- 

 son, 68. 



and 7 Cygni, comparison, 68. 

 Capella, see Aurigse a. 

 Carbon, distribution in space, 142. 



flutings of, 75, 83. 



in stars, 61, 129. 



stars and Milky Way, 129. 

 Chancourtois, 165. 

 Chromosphere and enhanced lines, 39. 



and Fraunhofer spectrum, 43. 



eclipse, 1871, 43. 



eclipse, 1878, 43. 



position of, 50. 



spectrum, 39, 41, 42. 

 Classification of stars, 66, 70, 72, 129, 



130. 



Cleve, yttria, 117. 

 Cleveite gas, and series, 11, 83. 



composition of, 96. 



Clifford, magnetic perturbations of 

 lines, 109. 



path of molecules, 18, 29. 

 Clusters, star, and Milky Way, 128. 

 Compounds, spectra of, 20. 

 Cornu, aluminium series, 87. 



magnetism and wave-length, 112. 



reversed lines, 101. 



series, constants of, 87. 

 Corona, 1871, 43. 



1878, 43. 



1898,43. 



variation of, 43. 

 Crookes, dissociation, 76. 



fractionation, 116. 



periodic law, 165. 



victorium, 119. 

 Crucian stars, 70. 

 Crucis, , 60. 

 Cygni a, absorbing layer, 52, 80. 



and Sirius, comparison, 68. 



spectrum of, 49. 



7 and Procyon, comparison, 68. 

 Cyg-nian stars, 70. 



D. 



Depolymerisation, 176. 

 Deslandres, series, 87. 



