148 Ordinals of the Elements and High-frequency Spectra. 



Third pair of Lines. 



N. 



Ly. 



a 3 (N-12). 



Pd(48) 



3-928 



0-4232 . 36 



La (59) 



2-313 



0-4224 . 47 



Ce(60) 



2-209 



04233 . 48 



Sa(64) 



1-893 



0-4221 . 52 



Eu(65) 



1-814 



4230 . 53 



Gd(66) 



— 







Er(70) 











Ta(75) 



1-287 



04225 . 63 



Os(78) 



1-172 



0-4226 . 66 



Ir(79) 



1-138 

 1-104 



4225 . 67 



Pt(80) 



0-4226 . 68 



Au (81) 



1-078 



0-4215 . 69 



I4. 



6 3 (N-14). 



2-424 



0-4310 



45 



2-315 



04314 



46 



1-972 



0-4301 



50 



1-888 



0-4309 



51 



1-818 



0-4307 



52 



1-563 



0-4313 



56 



1-330 



0-4292 



61 



1-201 



0-4305 



64 



1-155 



0-4323 



65 



1121 



0-4321 



66 



1-092 



0-4313 



67 



On taking the means of the a- and 6-values for the 

 different series, we find : — 



Series. 



Constant. 



Elements which enter in the mean. 



Mean value. 



Ka. 



a x . 



All except the three last (Ru, Pd, 



Ag). 



0-8671 





»» 



The constant middle-part from CI to Zn. 



0-8660 



Kj3. 



b v 



All measured by Moseley. 

 All except Al and Si. 





0-9283 

 0-9275 



La. 



a. r 



All. 



The 12 constant, Eh to Gd. 





0-3698 

 0-3694 



L/3. 



K 



All here given in the table. 

 The six first only. 





0-3956 

 0-3951 



Ly. 



a 3 . 



All. 





04226 



L<p. 



b 3 . 



All. 



The six original 0-lines. 





0-4310 

 0-4309 



We have then the following table for the constants C and 

 a or b of the series on taking the best values from their most 

 constant parts. 



Designations 

 of series. 



First 



pair. 



Second pair. 



Third 



pair. 



Ka 

 (la) 



K/3 

 (16) 



La 



(3«) 



L/3 



(36) 



Ly 



(4 a) 



L^ 



(4 6) 



Values 

 ofC. 



3 

 1.3 



3-5 

 1.3-5 



9 

 3.3 



10-5 

 3.3-5 



12 

 4.3 



14 

 4.3-5 



a (or 6) ... 



08660 



0-9275 



0-3694 



0-3951 



0-4226 



04309 



a 2 



0-7500 



0-8603 



0-1365 



0-1561 



0-1786 



0-1857 



i a" 



c 



0-2500 



02458 



00152 



00149 



0-0149 



00133 



