L. VEGARD. 



M.-N. Kl. 



If we would assum two il/-rings we can, just as in the case of re- 

 combination between primaries, explain Ma by means of combinations 

 such as r/3 = 8, i/^ =^ j. 



The second iß) Lines of each Series. 



§ 12. 



In the case of the second lines {ß) the modified hypothesis of re- 

 combination from secondaries will give frequencies, which are not very 

 different from those we deduced on the assumption of recombination 

 between primary systems; but they are essentially different from the 

 frequencies we might deduce for these lines from the hypothesis of re- 

 combination from secondaries in its original form 



In the case of Ka we put in equation (25) 



i = I, k = 3, «1 == I, /^a = 2, 27 = 3 ... (25) 



In fact the quantities B and (' are already given in Table XII. 

 corresponding to '/3 = i, and we get the following equation for the 

 frequency: 



^-|^V2- 3,962 /V+ 8,7+ £. 



In Table XVI. are given the observed and calculated values of f-^ 1 and 

 J for some atomic numbers. 



Table XVI. 



