354 
DR. W. M. HICKS; A CRITICAL STUDY OF SPECTRAL SERIES. 
[48846-60] 
-e [41532] 
-2e(<l) 34216 '08 * 
-e-t;(2) 37105 --02 
S(7). 
[50624-50] 
-e [43310] 
-2e (4) 35998 --08 * 
[51439-80] 
-e [44125] 
-2e (1) 36809 -08 * 
There seems clear evidence of displacement here producing a separation of about 2 , which is the same 
as that by on e. The - 2 e soundings give S 3 - Si = 1777 - 90 + 815 -12, which is correct, but 35998 is 2 
in the opposite direction. The lines in the list are therefore deduced from this set, using as sounders 
6 + e (— Sj), e + e (Si), e + e (— 61). 
[49351-72] 
-e [42037] 
-e-v(2 ) 37606 
-14 
-e-ti{3) 37901 
-11 
-2v{2n) 40497 
- -11 
values of t/X = - 00 for the set. 
S( 8 ). 
[51129-62] 
-e [43815] 
-6-^(1) 39386 -02 * 
- e - K (3«.) 39683 - -06 
[51944-92] 
-e [44630] 
-e-?;(l) 40199 -12 
-e-M(27i) 40497 00 * 
The linkage separation gives for the -e-v 1780-83 + 813 • 41 = ju + j '2 + " 29. 
„ „ „ „ -e-M 1783-19 + 813-95 = n + "2 + 3-19. 
The separations about 1780 are very common and will be discussed more completely under the D series, 
but here the origin must be a different one. For S ( 1 ) the sounder - e (- Sj) - m is taken. 
The - 24> link for Si is probabl}^ spurious. The line comes under S 3 as well. This is because of the 
numerical coincidence + + = 11448-95 and e + u = 11447-28. It appears in m = 9, 10 also. 
[49699-55] 
-6 [42385] 
-2e (1) 35072 --05 * 
-e-t;(l) 37953 -18 
-2'y (1) 40841 -10 
Only one reliable value - 2 e for Si. 
S(9). 
[51477-45] 
-e [44163] 
-2e (1) 36842 -24 
[49949-21] 
-e [42635] 
-e--y(l) 38203 -16 * 
-2i;(l) 41091 -07 
S(10). 
[51727-11] 
-e [44313] 
-2e(l) 36998 -00 * 
[52292-75] 
-e [44978] 
-e-M (1) 40841 -16 
[52542-41] 
-6 [45228] 
-2e(2) 37916 -17 
-e-a(l) 41091-56 -13 
The - e -in Si, - 2e in S 2 , ew in S 3 give 1781-53 + 811-70 = j'i + i' 2+-28 the modified ^i. For Si 
and S 3 the modified m(- 6 i), v{-^i) are taken. The line 37916 under S 3 is also (ei;)Di 6 ( 8 ), 
considered later. 
[50134-46] 
-e [42820] 
-e-M(l) 38687 --02 
- 2e - v(<l?i) 31076 -05 
S(ll). 
[51912-36] 
-e [44598] 
-e-M(2) 40468 --28 
[52727-66] 
-e [45413] 
-2e-M(l) 33968 --08 
-2e-v(3) 33674 --12 
