142 



REPORTS ON THE STATE OF SCIENCE. 



Tantalum — continued. 



Arc Spectrum 



Wave-length 



Kiitteu and 

 Morsch 



3087-855 



87-624 

 85-630 

 82-543 



81-950 

 80088 



78-335 

 77-334 



76-483 

 75-429 

 73-495 



73-451 



69-342 

 66-876 



Exuer and 

 Haschek 



3087-85 

 87-61 

 85-64 

 82-57 



81-95 

 80-08 

 79-67 

 79-40 

 78-34 

 77-33 



76-50 

 75-39 

 73-52 

 73-11 

 72-48 

 70-66 



69-32 

 66-87 



Intensity 



and 

 Character 



Spark Spectrum 



Wave-length 



Reduction to 

 Vacuum 



2 

 2 

 2 

 1 



2 

 2 

 1 

 1 

 2 

 3 



1 

 1 

 1 



1 

 1 

 1 



Exuer and 

 Haschek 



Intensity 



and 

 Character A. -f- 



1 



Oscillation 



Frequency 



in Vacuo 



3082-3 



76-96 



6l)-9 



64-7 

 64-0 



65-7 



44-87 



27-008 



27-Cl 



39-9 



32-88 



28-51 



