206 



KBPOET — 1892. 



Cadmium (Aec Sfectwjw.)— continued. 



* These lines form a series of triplets for which in the formula 10^ ~ = a 



A 



_ b!i---cn-*, a = 40755-21 for the first line, 41914-60 for the second, and 42456-64 

 for the third, i= 128635 and (• = 1289619. 



t These lines form a series of triplets for which a = 40797*12 for the /»'«^ line, 

 41968 80 for the gecond, and 42510-58 for the third, i = 126146, c = 555137. 



§ Double. 



Barium (Arc Spectrum). 

 Kayser and Runge (' Ueber die Spectren der Elemente,' Pt. IV. 



Berlin, 1891). 



