INTENSITY RELATIONS IN THE SPECTRUM OF HELIUM. 



147 



TABLE III. Intensities of Helium Lines. 



A 3965 is just seen on V. 



TABLE IV. Intensities of Helium Bands. 



Diffuse Semes and Cathode Distance* In order to isolate the various phenomena 

 of intensity distribution presented by the spectrum of Helium at different distances 



* HICKS has proposed a new arrangement of Helium series, regarding P series as being in fact F series. 

 We have thought it more convenient, however, to retain the older tenninology in our discussion throughout, 

 as we deal only with experimental results. 



* 2 



