188 H. A. Rowland—Relative Wave-lengths 
(4) 5624-696 4508°417 (16) 
5896°080 5624:°198 4501°393 4222°328 
4691°517 1027-657 (24) 5624°696 
5862°506 7023-686 6322°825 5624194 
@ (4) 52707431 4215°612 
7039°975 5270°431 
4691:532 6322°825 
TABLE II. 
Wave Lengths of Standard Lines. 
Wt. WwW. LL. Wits) Wel: Wits. SiWewilas 
1 3169°4 8 4376°039 © 4 4978°712 
1 3261°6 2 4391-089 2 4980°292 
1 3347°9 2 4407-797 2 4981-836 
1 3329°50 2 4447°848 2 4994-251 
i 3406°50 ) 4494°667 2 4999°626 
‘] 3540°24 Sd(?) 4496:984 2 5005°838 
1 3545°31 1 4499:()22 2 5006:239 
1 3549°97 1 4499°267 3 5007-370 
1 3564°64 ) 4501°384 2 5014°350 
1 3747-09 S 4508-400 3 5020°139 
1 3754°63 2 4554154 2 5036°029 
1 3897°54 2 4571°214 3 5049-944 
1 3916°82 2 4572°092 S) 5060°188 
1 3924-70 2 4578°663 S 5064-773 
1 3925°38 4 4588°320 Ss) 5068°879 
1 392581 4 4590°055 2 5083-460 
1G 3926715 2 4602°107 2 5090°897 
2 394254 2 4611°376 2 5097°071 
1 3950°45 2 4629: 445 3 5105°663 
i 3953°93 2 4630°218 4 5109-760 
1 3984:08 2 4643°580 4 51107502 
1 398554 2 4668°230 2 5115°495 
1 3987-000 S 4673'970 2 §121°730 
1 4005-261 5 4683°683 Z 5126°309 
1 4035-164 8 4686°344 2 5127°468 
2 4048°821 S 4690°262 4 5133°812 
2 4055°626 8 4691°520 3d 8139-472 
2 4073°837 4 4703°110 2 5141°845 
3d 4083-748 2 4703:910 2d 5142-986 
3 4107578 2 4727-565 3 5146612 
3 4114°530 2 4754-159 3 5150°957 
2 4157°893 2 4805186 2 5154°157 
2 4184992 S 4823°630 2. 5155°864 
2 4199°190 8 4824°256 3 5159-171 
$ 4215°613 N) 4859-864 6 5162-486 
Ss) 4222°323 S) 4861-428} 2 5165°518 
3 4254-452 2 4890°885 2d 5167-499t 
1 4267-974 1 4900-039 2d  5169-:094§ 
4 4293°201 1 4900°237 3 5171-714 
2d  4307-961* S 4903-409 2 5172-795] 
2 4318-782 1 4907-869 3 5173-838 
4d 4325°924 2 4915°111 3 5183-735 q@] 
2 4337:143 3 4920-632 2d 5188°892 
2 4343°304 Ss) 4924°050 2 5193:071 
3d 4352°865 ) 4924°887 2 5198°819 
2d(?) 4359-715 2 4934°181 3 5202°422 
4369°887 4 4973-294 2 5204°646 
* Fraunhofer’s G. + Fraunhofer’s F. t Fraunhofer’s 64. 
§ Fraunhofer’s 63 || Frauuhofer’s 62. {| Fraunhofer’s 0. 
