ON WAVE-LENGTH TABLES OF THE SPECTRA OF THE ELEMENTS. 
Wave- 
length 
(Rowland) 
5422-93 
5418°61 
5410-97 
*5408°55 
#5391°92 
5389°70 
5380°75 
5369°63 
*5360°20 
5357°27 
#5355°10 
#5352°85 
5340°71 
5338°19 
5325°38 
531760 
5309-41 
5295°71. 
#529275 
5287°66 
5285°77 
528234 
5270°13 
5268°38 
5255°62 
#5250°82 
5232°80 
#*5220°25 | 
¥*5218°45 | 
5208°37 
520374 
*5201'14 
*5153°40 
*5 144-40 
513903 
513386 
5130-97 
5124-70 
512000 
5112-18 
*5105°75 
5095-08 
5094-29 
5089-54 
*5076-49 
5067-33 
5060'86 
5059°58 
5053-02 
#5034-49 
501699 
5013-40 
5007-49 
500538 
500150 
CoPpPpER (SPARK SPECTRUM)—continued. 
Intensity 
and 
Character 
Previous Measurements 
(Rowland) 
5293'1 Thalén 5293:0 Neovius 
\ sais + ie BTL eh 
51533 ,, ~«©5153°6 + 
51055 =, = 51059 ” 
309 
Reduction 
to Vacuum 
| Frequency | 
18435°2 
Oscillation 
in Vacuu 
18449°9 
18476:0 
184842 
18641:2 
18548'8 
18579:7 
186182 
186509 | 
186611 | 
18668:7 
186765 
187190 
187278 
18772'9 
18800°4 
18829°4 
18878-0 
18888°6 
18906°8 
18913°5 
18925°8 
18969°7 
18976:0 
190221 
19039°4 
19105:0 
19151:0 
19157°6 
191946 
192116 
192213 
19399°4 
19433:3 
19453°6 
194732 
194842 
19508-0 
19526:0 
19555°7 
19580°4 
19621-4 
196244 | 
196427 
19693:2 
19728°9 
197541 
19759°1 
19784:7 
19857-6 
19926°8 
19941:0 
199646 
19973-0 
19988:5 
