INDEX. 



197 



Spottiswoode, induction coil, 32. 

 Star-way, Gould's, 126. 

 Herschel's, 126. 

 inclination of, 127. 

 Stars and nebula;, relation between, 



132. 



atmospheres of, 150. 

 behaviour of hydrogen in, 64. 

 bright line, 132. 



distribution, 134. 

 brighter, McClean, 60. 

 carbon, 61. 



and Milky Way, 129, 141. 

 and relative temperature, 56. 

 chief lines in, 56. 

 D liner's observations, 129. 

 length of spectrum, 55. 

 classification, chemical, 66. 



general, 72, 129. 

 composition and distance, 142. 

 containing new hydrogen, 60. 

 cooler, chemistry of, 65. 

 distribution of, and Milky Way, 



131, 141. 



gaseous, and phosphorescence, 151. 

 and proper motion, 139. 

 and relative temperature, 56. 

 chief lines, in, 56. 

 length of spectrum, 55. 

 genera of, definitions, 70. 

 grouping of, chemical, 141. 

 hottest, 67, 159. 

 magnesium in, 75. 

 masses of, 150. 

 metallic, and length of spectrum, 



55. 



and Milky Way, 131, 141. 

 proper motion, 139. 

 relative temperature, 56. 

 chief lines in, 56. 

 flutings in, 141. 

 new, see Novae, 

 nitrogen in, 61. 

 Orion, temperature, 80. 

 oxygen in, 60. 



proto-metallic, and proper motion, 

 139. 



and Milky Way, 131, 141. 

 silicium in, 61. 



similar type, localization of, 120. 

 spectra of, and proper motion, 



140. 



temperature of, 67, 68, 174. 

 white, and Milky Way, 131. 

 Stoney, hydrogen series, 86. 

 Strata, stellar and geological, 159. 

 Strontium, behaviour of, Humphreys, 



106. 



Struve, star distribution, 126. 

 Sulphur, series in, 95. 

 Sun, absorbing layer, 52. 



convection currents, 146. 

 enhanced lines in spectrum, 35. 



Sun (continued) 



spectrum of, and chromosphere, 



39. 



and Arcturus, 50. 

 temperature of, 80, 147, 151, 174. 



T. 



Tait, magnetic perturbation of lines, 



109. 



Taurian stars, 70. 

 Temperature, and chemical elements, 



165. 

 and dissociation, 79. 



length of spectrum, 5. 

 mass, 149. 

 proper motion, 139. 

 series, 183. 

 curve, 46, 68, 173. 

 high, effect of, 157. 

 intermediate stellar, 67. 

 of stars, 60, 68,70. 

 of sun, 80, 174. 

 stages of, 32. 

 Thallium, series, 87. 

 Thomson, Prof. J. J., chemical ele- 

 ments, 167, 188. 

 mass of molecules, 182. 

 Triplets, in series, 89. 

 Troost and Deville, specific gravity of 

 iodine, 74. 



U. 



Units, chemical, complexity of, 98. 



V. 



Valenta and Eder, mercury spectrum, 



76. 



molecular combination, 74. 

 Victorium, discovery of, 119. 

 Vog-el, H., Algol, mass of, 149. 

 Vog-el, W.,| wave-length, change of, 



1C2. 

 Volumes, atomic, 165. 



W. 



Water, sea, composition of, 169. 

 Waters, S., nebulae and star clusters, 



128. 



Wave-length and magnetism, Cornu, 

 112. 



and pressure, 101. 

 quantity, 103. 

 hydrogen series, 59. 



