118 



REPORT — 1903. 



Thallium (Ultba-violet Spabk SPECTnvM)~conti)iued. 



Wave-Iejigtli 



Exner and 

 Haschek 



57-3 

 53-9 



Eder and 

 Valenta 



1964-80 



1868-48 



62-70 



Intensity 



and 

 Character 



Previous 

 Observations 



Potassium (Oxyhydrogen Flame Spectrum).] 

 Ramage, ' Proc. Royal Soc' Ixx. 1902, p. 303. 



The lines of the principal series are marked ' P,' those of the first subordinate 

 series ' A,' and those of the second subordinate seiies ' B.' 



