34 



L. VEGARD. 



M..N. Kl. 



and we get: 



i= 2, k = 4. 



712 = 2, «3 = 3, "4 = 7 = 4. 



92 = 7, 'h= »2, 74 == I, 



"^ -^N^ - 4,^28 N+2s,3S^€. 



R 16 



A^ 



has been calculated for various atomic numbers and the results 



are given in Table XVII 



Table XVII 



The increase of P with increasing N indicate that perhaps ß.^ and 

 not /S2 is to be considered as the normal ^S-line of the L-series. 



The considerations in § 10 with regard to the formation of doublets 

 [uq «1) [ßa ßi) also apply to the present hypothesis. 



Recombination from Secondaries and Kossel's relations. 



On the assumption of recombination between primaries Kossel's 

 relations were identically fulfilled. This is, however, not the case when 

 we assume recomcination from secondaries. From the general equation 

 of frequency (25) we easily deduce the formula: 



'-{jij+ij^i-i^r '"""''- '■"^- '''^■'"''- " 



or (approximately) 



^ = ^[¥^^-Pj^ ^-Sç/-%- ^)^^^-Pj—%-J' 



(20 a) 



