L. VEGARD. 



M.-N. Kl. 





...(5b) 



î'o is the frequency which we would get when the variation of the mass 

 is disregarded, and e is the correction for variation of mass. 



R 



and e are given by the following expressions: 



^ = — 3-— J.V' - BN-^ C where 



i=k-i 



'I2B 





Qi 



l=k-l 



C 



JPAV.^^ r,.(?^.g.)-2g.(i^. + \-V.) 2 ?^/(,^^. _./.3) 



l=i + l "/ 



The functions rp^ and r^o» which were introduced in Paper I. are 

 given by the following expressions: 



n ip q) = Q{S,-S^_,)-^S^_,+p 



I 



Finally : 



. . • (7) 



of fN— a\^ 



4\ 



N—h,Y 



?M — - — -i'Jk-^) 



l=k-l 



Qi 



Zj 71 1 



l=i+l 



where 





On the Determination of the Quant-number of Electrons of the Ring- 

 systems from the observed Frequencies. 



S 4. 



The problem before us is to find such whole numbers >?, 2> and q, 

 that the calculated and observed frequencies of the various a;-ray spectra 

 are in agreement with each other. The procedure in the present case 

 is the same as the one follo\ved in my previous paper, only the equa- 

 tions and some of the results will be different. 



