408 



REPORT — 1898. 



Tungsten (Spaek SFEC'imjM)—cmiiimted. 



Wave-length 



Spark 



Spectrum 



(Rowland) 



2382-7 



2382-4 

 2382-0 

 2381-8 

 2381-4 

 2381-2 

 2380-9 

 2380-4 

 2380-3 

 2379-7 

 2378-2 

 2377-1 

 2375-9 

 2374-5 

 2373 7 

 2373-4 

 2372-7 

 2371-9 

 2371-1 

 2370-1 

 23690 

 2368-4 

 2367-8 

 2367-2 

 2366-7 

 . 2365-9 

 2365-5 

 2364-4 

 2364-1 

 2363-5 

 2362-2 

 2361-7 

 2361-3 

 2359-4 

 2358-9 

 2358-1 

 2357-4 

 2356-9 

 2353-7 

 2353-5 

 2351-6 

 2351-3 

 2350-4 

 23499 

 2349-4 

 2348-2 

 2346-5 

 2345-0 

 2344-5 

 2343-7 

 2341-4 

 2339-7 

 2339-1 

 2337-7 

 2336-8 



Intensity 



and 

 Character 



Previous Measurements 

 (Angstrom) 



2b 



Reduction to 

 Vacuum 



A-l- 



0-71 



0-70 



1 

 a" 



Oscillation 



Frequency 



in Vacuo 



