ON WAVE-LENGTH TABLES OF THE SPECTRA OF THE ELEMENTS. 279 
BLUE SPECTRUM OF ARGON—continued. 
Wave-length 
Kayser 
(a) 
6172°3* 
6140°9 
6114-1 
Fder & 
Valenta (b) 
6032:69* 
5928-61* 
5912-48* 
5889:02* 
5834-63* 
5772°52* 
5739-87*F 
5691-94* 
5690:19* 
5682:26* 
5659:47* 
5651-03*t 
5649-02* 
5641-74* 
5639°39* 
5635:01* 
5624:06* 
5618:30* 
5607°44*+ 
5597:89*+ 
5582°20*+ 
5577-98 
5572°87*+ 
5559-93*+ 
5559:02*+ 
5554:37 
5534:73* 
5529:18* 
5525°27*+ 
5506-43*+ 
5498-55 
5496°16*+ 
5490:37* 
5473-76* 
5467°41* 
5457°75* 
5454-71 
5451-95*} 
5443-544 
5442-54" 
5440:28*+ 
5421-68*+ 
5410-76* 
5407°70 
5402-95 
-5397-90 
5394-20* 
5375:76* 
5306-04 
5287-24+ 
526505 
5254-79* 
Intensity 
HR ORE RE DDN D RD EN EDN REP RP RON KUNDEN ON RNP WOR EE RRR ONE RP EDR RP Re Eb 
Previous 
Observations 
6173 Crookes 
6120 % 
Reduction to 
Vacuum Oscillation 
——| Frequency 
1 in Vacuo 
AF = 
1°68 4:4 16197°1 
1:67 bs 16279°9 
1°66 | ...,, 16351°2 
1°64 4:5 16571°8 
161 46 16862 7 
< 3 16908°8 
| 1°60 ” 16976°2 
| 1:59 4:7 17134:°3 
io vaplewe 17318°8 
1°56 e 174173 
1°55 48 | 17563°9 
F - 175690 
” 99 17593°8 
1°54 % 176647 
pe a 17691°1 
= 17697'3 
ms ie 17720°2 
ms S 177276 
“ - 17738°6 
CET rad 17776:0 
6 - 17794°2 
wb 4:9 17828°6 
¥ 2 17859°0 
1°52 “4 17909°2 
a 17922°7 
z = 17939°2 
y Pe 17980°9 
Fs - 17983°8 
. 17998°9 
e is 18051°0 
‘ ‘ 18093°8 
1:50 i 181556 
5:0 18181°6 
a i 18189:0 
4 i 18208:0 
1:49 “s 18264:0 
ie is 183852 
se a 18317°6 
" fe 18327°8 
es ie 18337°1 
3 + 18365°4 
“ x 18368°7 
¥ 4 1837674 
1:48 Fe 18439°5 
zs Fs 18476°7 
ss "A 18487°1 
. * 18503°4 
~ 35 18533°3 
i i 18603'8 
1:45 a 18841°3 
ba 5-2 18908°3 
“ :! 19025°1 
