Titanium, and Vanadium by Tliermelectronic Currents. 263 



Relative intensities. 



Elemeut. 



X. 



Clas 



Iron 



3758-23 



II. 





3703-80 



II. 





3707-19 



II. 





3787-88 



II. 





3795-00 



II. 





3798-50 



11. 





3799-55 



II. 





3812-88 



II. 





3815-84 



II. 





*3820-44 



II. 





382444 



I. 





*3859-90 



I. 





3805-53 



II. 





3872-51 



II. 





3878-02 



II. 





3878-70 d 



I. 





3886-29 



I. 





3887-05 



II. 





3988-52 



II. 





3895-65 



I. 





3899-70 



I. 





3902-95 



II. 





3906-47 



I. 





3917-17 



II. 





*3920-26 



I. 





3922-92 



I. 





3927-94 



I. 





393030 



I. 





3969-26 



II. 





4005-26 



- II. 





4045-82 



II. 





4063-61 



II. 





*4071-75 



II. 



Luminous vapour Carbon tube- 

 (graphite plate), furnace (2400°). 



1 



'? 

 1 

 1 

 1 

 1 

 1 

 4 

 3 

 6 r 



1 

 2 

 o 



3 



1 





 2 

 3 

 3 

 3 

 1 



2 



2 

 1 



Since a detailed description of the spectrum emitted by 

 the luminous vapour is outside the scope of the present 

 paper, only such data have been collected in the preceding 

 table as were considered indispensable, both for showing 

 the general character of the emission and for establishing the 

 fact that it is of precisely the same type as that observed 

 in a carbon tube resistance furnace. The data regarding the 

 tube-furnace have been taken from an earlier communica- 

 tion * ; since they were obtained with the same spectrograph, 

 they may be directly compared with the results of the present 

 research : the only difference between the photographic 

 * Hemsalech, Phil. Mag. vol. xxxvi. pp. 218 & 224 (1918). 



