ON WAVE-LENGTH TABLES OF THE SPECTBA OF THE ELEMENTS. 165 



Z I RCON I u M — continued. 



Oscillation 



Frequency 



in Vacuo 



24172-0 

 80-2 

 83-4 

 87-7 

 93-7 

 97-5 



24202-6 

 17-5 

 44-3 

 49-1 

 64-0 

 55-5 

 63-1 

 64-7 

 68-7 

 97-2 



24305-7 

 07-3 

 11-1 

 19-2 

 22-8 

 32-5 

 37-6 

 62-6 

 67-4 

 86-4 



24402-4 

 05-2 

 16-4 

 23-0 

 37-2 

 38-9 

 52-9 

 55-8 

 67-7 

 76-0 

 83-3 

 88-2 

 90-9 

 94-5 

 99-1 



24501-1 

 12-0 

 19-5 

 22-7 

 320 

 32-4 

 45-7 

 55-5 

 64-8 

 69-8 

 74-6 

 91-1 



