﻿780 Dr. Marshall Watts on the Principal Series 

 give the following results : — 



The Principal Series in Rubidium. 



Flame. 



Arc. 



Spark. 



Kayser & 

 Runge. 



m. 



Calculated 



Observed — Calculated. 



Eder & 







Exner & 















Valenta. 



Lehmann. 



Saunders. 



Haschek. 



(Arc.) 









Birge. 



Hicks. 



Be van. 



f 7950-4 

 \ 7806-2 



/ 7950-46 

 1 7805-98 



f 7947-6 

 1 7800-2 





J7950 

 \7811* 



2 



f 7949-03 

 17803-13 



+-oi 















+ •04 





-25 









Exner & 



















Ram age. 





Haschek. 



















1 4215-63 

 1 4202-04 





[4215-75 



1 4215-73 

 1 4201-97 



f 4215-72 

 \4201-98 



3 



/ 4215-72 

 14201-99 



-•01 















1 4202-06 



+ •01 











/ 3591-86 



1 3587-27 





/ 3591-74 

 \ 3587-21 





I 3591-74 

 1 3587-23 



4 



/ 3591-74 

 1 3587-22 



+ •04 



+•20 













+ •02 











/ 3350-98 

 \ 3348-84 





J" 3351 -oo 

 \ 3348-89 





I 3351-03 

 1 3348-86 



5 



i 3350-94 

 1 3348-93 



+ •06 



+ •16 













-•07 





+ -06 





f 3229-26 



1 322818 













f 3229-27 

 1 3228-10 



-•01 



+•08 



-•01 



+ -02 



- -04 











Be van. 



6 













(Absorp- 























tion.) 























f 3158-25t 

 1 3157-69 



7 



f 31 5839 



+•08 



-•22 



+1-00 



-•19 











1 3157 67 



+ •02 





+ -27 



-•03 











~ 3112-95 



8 



3112-95 







-•23 





-•11 











3082-39 



9 



3082-34 



+ •05 



-•65 





+•01 











3060-62 



10 



3060-56 



+ •06 



-•41 





-•01 











3044-33 



11 



3044-47 



-•14 



-•40 





-•20 











3032-20 



12 



3032-25 



-•05 



-•26 





-•11 











3022-70 



13 



3022-74 



-•04 



-•23 





-•09 











3015-16 



14 



3015-20 



-•04 



-•18 





-•11 











3009 03 



15 



3009-11 



-•08 



-•08 





-•15 











3004-11 



16 



3004-12 



-•01 



-•27 





-•08 











2999-96 



17 



2999-98 



-•02 



-•03 





-•08 











2996-51 



18 



2996-51 







-•26 





-•06 











299352 



19 



2993-57 



-•05 



-•21 





-•12 











2991-12 



20 



2991-06 



+ •06 



-•09 





+•01 











2988-94 



21 



2988-89 



+ •05 



-13 





-01 











2987-01 



22 



2987-02 



-•01 



-•14 





-•06 











2985-45 



23 



2985-38 



+•07 









+•02 











2984 05 



24 



2983 94 



+•11 



+ 14 





+ •06 











2982-68 



25 



2V»82 67 



+ •01 



+ •41 





-•05 











2981-51 



26 



2981-53 



-02 



+ •53 





-•08 











2980-52 



27 



2980 53 



-01 







-•07 











2979-62 



28 



2979-62 











-•07 











2978-81 



29 



2978-81 











-•07 











2978-10 



30 



2978-08 



+ •02 







-■05 











2977-39 



31 



2977-42 



-•03 







-•09 



{7800-3 Eder & Valenfca ( Arc )- 



t 3158-7 Saunders. 



Birge has the convergence-frequency 33687*82, Hicks 33687*50, 

 and Bevan 33687*5. 



For Caesium the formulae 

 O.F. = 3U04*31-^ 



109675 



m + '418202 - 



•090052 



m 



?)" 



