Separation of the Spectral Lines of Thorium 31 



Table XI— Concluded 



*The j- is very peculiar. It is spread over a field about 40 per cent 

 wider than the p- separation. 



Table Xll 



X 3722.06 



Table XIII 



* 3959-38 



1 . . 



5-- 

 1 . . 



1 + 



1 + 



AX Y- 



— 2.00 .9 



— I.42/) 



— .So ^ 

 o. p 



+ .98 s 

 + 1-23/ 



+1.875 



119 



