ON AVAVE-LENGTH TABLES OF THE SPECTBA OF THE ELEMENTS. 209 



IBON (Arc SPEcrnvM')— continued. 



Miiller and 

 Kempf 



Oscillntion 

 Frequency 

 in Vacuo 



27740-8 

 27741-7 

 27743-6 

 27749 

 27752-2 

 27771-3 

 27774-8 

 27776-2 

 27778-3 

 27786-3 

 27790-8 

 27797-6 

 27800-0 

 27802-0 

 27804-7 

 27810-2 

 27818-7 

 27819-9 

 27823-7 

 27824-8 

 27826-5 

 27830-2 

 27835-2 

 27837-9 

 27840-4 

 27845-0 

 27848-7 

 27849-9 

 27852-5 

 273540 

 27856-3 

 27863-2 

 27865-7 

 27867-3 

 27869-2 

 27872-9 

 27875-8 

 27879-0 

 27882-1 

 27882-9 

 27884-9 

 27887-2 

 27895-3 

 27897-6 

 27902-9 

 27906-4 

 27909-3 

 27911-0 

 27914-2 

 27933-8 

 27936-2 

 27939-8 

 27948-7 

 27954-8 

 27959-7 



1891. 



