ON WAVE-LENGTH TABLES, OF THE SPECTRA OF THE ELEMENTS. 293 
BLUE SPECTRUM OF ARGON—continued. 
Reduction to 
Wave-length ad Wacnnn Oscillation 
Intensity ; requency 
ee Eder & y Observations < i TmvatO 
(a) Valenta (b) | A 
2103°6 1 065 | 148 | 47523 
209271 1 » | 1£9 | 47784 
2078'3 1 » | 15:0} 48101 
2077°2 1 % | 5; 48126 
2063°9 1 064 | 15:2 | 48437 
2057-6 1 ore Nhedatte 48585 
2050°5 1 » | 153) 48753 
Tiranium (Arc SPECTRUM) 
Hasselberg : ‘ Kong]. Svenska Vetenskaps—Akadem. Handl,’ Bd. 28, No. 1, 1895. 
* Coincident with a solar line. 
ren eee. 
Reduction to 
Wave- Intensity | Previous Observations i es fis - Oscillation 
length and (Rowland) TTY Wa pea Frequency 
(Rowland) | Character Bes we in Vacuo 
A 
*5899°56 6 5900°2 Thalén 161 | 46 16945°8 
5880-55 3 160 % 17000°6 
*5866°69 7 5866°5 * . mo | 17040°8 
5823°95 3 159 | 4:7 17165°8 
*5804-45 6n 1°58 3 17223°5 
*5786:21 6n be ee 17277°8 
*5781-04 3 it w= | 17293°2 
*5774:27 6 1°57 Pine al 173135 
*5766°56 5n 2 et 17336°7 
*5762°52 5n fo 9 17348°8 
*5757-08 3 cf ae | 173652 
*5740°20 3s 1-56 Tet 17416°3 
*5739°69 5 57392 + r teal 174178 
*5720°70 4s 3 4:8 174756 
5716-71 4 5 mul 17487'8 
*5715°30 5 5715-2 Pe Ss - 174921 
571412 4 4 5: 174957 
*5712:07 4s ra 3 17502°0 
5708°46 4 as 3 17513:1 
*5702°92 5 67027 —si,, 1°55 5 17530'1 
*5689°70 6 5689°8 5 “2 As 17570'8 
*5680°15 4 5680°3 - i * 17600°4 
*5675°61 vg 56757 =, re Foe 176145 
*5663°16 4 1:54 Slee | 176532 
*5662:°37 6 5662°8 a - x 176556 
*5648°81 5 56483, 35 * 17698-0 
*5644:37 6 56443, .. Pe 177120 
*5565'70 6 5566-0 e 152 | 4:9 17962°3 
*5514'78 6 , 1:50 + 18128:2 
*5514-58 6 \ S148, ” i 18128°8 
4 *5612-72 6 5513-2 s A i lvoe 181350 
