JUNE 19, 1923 WALTERS: REGULARITIES IN ARC SPECTRUM OF IRON 247 
TABLE 1—Continued 
no.| AIA. INT. pvac. opah ZEEMAN PATTERN a gs pach iw a 
6/3442 .676 2 29038.87 | IIIA 
3446 . 966 1 29002 .73 390.58 
3473 .497 it 28781 .22 252 .04 
7|3466.501 2 28839.29 | IIIA 2+3+3 
3483 .012 4 28702.58 | IITA 
3513 .822 5 28450.93 II 448 .50 
3521. 264 5r | 28390.79 I 351.28 
3526. 167 5 38351 .32 II 25 iis 
3558 .522 5r | 28093.55 II 
3565 .383 6R | 28039.50 I 388 .36 
3570.102 7R | 28002.438 I 311.80 
8|3540.715 2 28234.85 | IIIA 1424343 
3554.121 4 98128 .34 | IIIA 
3585 .322 6r | 27883.56 1gt 351.28 
3585.708 5 27880 .57 II 257.72 
3586 .989 6r | 27870.61 uel 168.91 
3608 . 860 6R | 27701.70 I 
3618 .769 6R | 27625.84 i 474.92 
3631 .464 6R | 27529.29 i 354.28 
3647 .845 6R | 27405.65 I 244.78 
(0)3 
9/3687 .458 6R | 27111.27 I oa 2+4434+3-+2 
(0)3 
3709 . 250 6r | 26952.00 II re 448.49 
(?)3 
3727 .622 6R | 26819.15 iff Hew, 351.29 
(0)3 
3734. 869 OR | 26767 .12 if i 257.73 
(2, 0)4, 2, 0 
3743 .356*| 3r | 26706.35 TA Saget 168.90 
0)4 
3749 .487 8R | 26662.76 Il on 
(0)5 
3758 . 234 7R | 26600.71 II a 344.14 
(0)2 
3763 .792 6R | 26561.42 Il a 289 .24 
3767 .194 6R | 26537.43 ih Unaffected 218.44 
: (2, 0)4, 2, 0 
3887 .880 6R | 26392.53 II late t= 144.92 
3795 .004 6r | 26342 .98 AEE complex 
* Given by Burns as a pair but measured three times as a reversed line. 
