OS WAVE-LENGTH TABLES OF THE SPECTRA OF THE ELEMENTS. 



11; 



Indium (Ultra-violet Spark Spectrum). 

 Exner and Haschek, 'Sitzber. kais. Akad. Wissensch. Wien,' cviii. (2), 1899. 



Beryllium (Ultra-violet Spark Spectrum). 

 Exner and Haschek, ' Sitzber. kais. Akad. Wissensch. Wien,' cviii. (2), 1899. 



Wave-length 



4572-88 

 3321-51 



21-23 

 3131-20 



30-56 

 2650-71 

 2494-84 



94-69 

 2348-72 



48-58 



Intensity 



and 

 Character 



I 



1 

 3 

 3 

 15 



20r 

 double 



sr 



3 

 1 



Previous Observations (Rowland) 



4572-9 Thal6n 

 3321-5? Hartley 



3130-2 



2650-2 „ 

 2493-9 



