198 THE CHEMISTKY OF THE SUN. [CHAP. xiv. 



those which are observed under other conditions. The line in 

 the violet to which I have already referred is again differentiated 

 from all the rest by the fact that it is the only line in the 

 spectrum of the sun which is strongly reversed, so far as our 

 present knowledge extends. The various intensities of the 

 lines of lithium, therefore, may be shown as in Fig. 77. 



These cases they might easily be multiplied are, I think, 

 enough for my present purpose, which is to show that where 

 the early statements favoured the view that the line spectrum 

 of a body was always the same, and that the solar spectrum 

 exactly matched it, further work brought out great differ- 

 ences in the intensities of the different lines observed, 

 differences amounting to the complete absence of some of the 

 lines under some conditions. The matching then between 

 terrestrial and solar lines at once fell to the ground. 



