DR. W. M. HICKS : A CRITICAL STUDY OF SPECTRAL SERIES. 
353 
In the case of Si it appears as if the e = 7315 is much superior. But, as it happens, the value of S 3 (3) 
as calculated from S-i (3) by is 42151'20, and so is very close to Si ( 1 ). It will be shown that for this 
the 7314 link gives very close values. 
and the linkage 
probably belongs to S 3 (3). 
The 
-e-u is 
doubtful. 
S( 2 ). 
25936 
27714 
28530 
-e(3) 18622 -00, --19 
-v{2) 23282 
-51 7;(2) 32958 
- 00 , 
•17 
-e + ir(10) 22755 -08, -16 
-v(-28i) 
-00 
-2e [15441-84] 
In Si the intensity of 22755 would suggest that its linkage is a coincidence. L.D. 
^ive a 
line 15447 
which may possibly be ( - 2 e) Si, for their 
measures are only to the nearest A.U. 
S(3). 
39559 41336 
[42151] 
See S 3 ( 1 ) -c(< 1 ) 34022 
--03, --10 
-e(<l) 34836t 
-02, 
- -05 
+ (<1) 38155 
--03, --06 
-2c (4) 27523 
-00, 
- -17 
-e - (1) 29892 
--20, --31 
-e-u{3) 30700 
•22, 
•14 
-e + v{<l) 38453 
--16, --22 
-e-u{-28i) „ 
•01 
-2e + M(l) 30843 
--14, --16 
t Si (1) and S 3 (3) are very close. This 
sounder probably is correct here and does not hold 
for Si(l), 
for which it differs by about 3. 
S(4). 
[44481-06] 
[46258-43] 
[47073-48] 
■ -e{ln) 37166 
•02 * 
-e(l) 38940 
•16 
-e (In) 39763 --15 
or (<1) 39754 -23 
-e-u(3) 33030 
•17 
-2e(l) 31628 
•09 
-e-'y(l) 35333 --08 * 
-c-w(- 2 Si) „ 
•00 
-e-u(i) 34810 
•02 
* 
-e-?^(<l) 34518 
- -08 
The 38940, 39763 are too far out to be dependent on 
e links. 
They could be dependent respectively 
e ( - 281 ) and e (+ 28i). 
Or more 
probably the lines 38940, 39754 may be S 2 (4) (- 28).e, S 3 (4) (- 28).e. 
[46799-33] 
-e (171) 39491 -28 
-e-7i(l) 35350 -08 * 
46805-45 
-e{ln) 39491 
S (5). 
[48577-23] 
-e(l) 41257 --23 
-e-7;(<l) 36832 -11 
-2c(l) 33948 -01 * 
1779-80 48585-01 
-e(3) 41271-15 
[49392-28] 
= 46805 - 45. It is curious, however, 
815-52 49400-53 
-e-u{\) 37593-25 
[56665-97] 
- e [43352] 
-e-M(l) 39218 -00 * 
S(6). 
[48072-77] [49850-67] 
-e (2) 40758 -02 * -e [42536] 
-e-v(lm) 38108 -00 * 
3 c 2 
39491 is too far out for a link. It would give a reading for Si 
to notice that we have sounders for a set ^vith this value, viz.:— 
