190 H. A. Rowland—Relative Wavelengths, etc. 
Wt. W. L. Wt. W. L. Wt. W.L. 
2 6293-077 4 6722°005 1 7090°612 
2 6296°066 3 6726°835 1 7122-431 
2 6314:798 S 6750°325 1 7147-893 
S) 6318-160 4 6752-876 1 7148-276 
S 6322-830 5 6767:945 1 71687134 
8 6335°479 5 6172479 2 7176°279 
8 6336°968 2 6787°051 1 7184-401 
2) 6344:297 2 6807°007 4 7184:705 
5 6355°184 4 6810-432 2 7186°470 
4 6358°834 4 6828°770 il 7194-805 
2 6380°889 2 6841:518 ] 7199°689 
5 6393°751 3 - 6855 348 1 7200°673 
2 6400°453 3 6867.382+ 1 7216693 
5 6408°163 3 686-717 1 7219289 
6 6411°793 2 68707123 2 7223830 
4 64207103 4 6875°742 1 7227-686 
7 6421:498 2 6876°879 i 7232-419 
6 6430°993 2 6877-797 S 7233-092 
5 6439-224 6 6879°212 Ss 7234-868 
2 6449:95] 6 6880°102 S 7240°879 
"7d 6462-762 10 6883-992 2 7243-800 
2 6471:°805 | 6 6885°925 8 7247°590 
9} 6480°198 6 6886°898 1 7264-770 
4 6482°031 1 6896-211 1 7265°750 
5 6493°921 2 6897-7103 2 7273°133 
5 6495:127 2 6901-032 il 72877590 
4 6499-896 2 6909°597 1 7289°844 
2 6516:226 4 6919-160 il 7290°621 
3 6518°514 il 6923°488 2 7299-993 
4 6532°496 4 6924-340 2 7304°382 
4 6534-090 2d 6929-687 © 2 7318678 
5 6546°400 4 6947-685 1 7331101 
2 6552°758 4. 6956°609 2 7335.532 
SS 6562°965* 4 6959°634 il 7442-574 
S 6564:338 5 6961437 2 7445.94] 
Hf 6569 360 2 6978°586 2 7495248 
2 6572°245 6 6986°755 il 7511.188 
2d 6575-090 2 6989172 2 7545°817 
2 6592°725 © 3 6999:104 2 71593-9758 
6 6593:068 2 7006-069 2 7621°183]| 
8 6594-016 2 7011-481 2 7623-425 
5 6609°253 8 7015-253 2 7624-7 3H 
2 6633°898 3 7015-639 1 7627°259 
6 6643°787 4 7016-616 1 7628-605 
2 6663°601 S 7023-675 1 7659°550 
6 6678141 S 7027°659 il 7660679 
5 6703°719 S 7635°083 ld ‘665-683 
5 6705-262 2 7038°398 IG Sani aes, 
4 6717-833 S 7039°968 
* Fraunhofer’s C. 
+ First line in what may be cailed the head of Fraunhofer’s B. 
t Single line between what may be called the head and tail of B. 
S Edge of what may be called the head of A. 
|| Single line between the head and tail of A. 
