THE STRUCTURE OF THE SERIES OF LINE- AND BAND-SPECTRA. 
17. Sulphur. 
Ist TRIPLET Series (1st Component). 
log a, = 4°96004 — 10 
} EO) 5 
log b, = 463201 - 10 gee 
i 
v obs. Obs. — R-P. 
(m+ 1) (red. to vac.) LN ae Comp. |(/.c. p. 87). 
4°5 14794:6 | 14794:5| 4-0-1 +0:1 
5:5 16516°3 | 16517:0| —-0-7 —0°5 
6:5 17519°3 | 17519°5| -0-2 +01 
io 18153:1 | 18152°9| +0°2 +0°5 
85 18578:-2 185782 0:0 +0°1 
95 18877°4 | 18877:4 0:0 +02 
2nd Tripter SER1Es (1st Component). 
log a,=4°95431 — 10 
Mmeee45976,-10 =~ 200804 
v obs. Obs. - | R-P. 
(i+ 1) (red. to vac,)| ” °°™P: Comp. he p. 88) 
5:0 15582°6 | 15582°7) -0-1 +0:1 
6:0 16973-1 | 16973:2| -0-1 -0:1 
70 178062 | 17805°9|} +0:3 +04 
8-0 18343°6 | 18344:0| -0-4 +01 
18. Selenium. 
Ist TRipLer Szrizs (1st Component). 
log a, = 4°97128 - 10 
log b, = 481092 - 10 wee eeer se 
4 v obs. Obs. — R-P. 
+ 1) (red. to vac.)| ”°°™P- | Comp. (dc. p. 94). 
4°5 141562 | 141564) -0-2 0:0 
55 158050 | 158048 +0-2 0-0 
65 16769°2 | 16769°8,; -0-6 0:0 
75 173796 | 173816) —2-0 —1:2 
85 17794'9 | 17793°3| +1-6 + 2°2 
9°5 18083-2 | 180830} +0-2 -—0°6 
105 18293°9 | 18294-:7; -—0-8 -18 
565 
Selenium—continued. 
2nd Tripter Series (1st Component). 
log a, = 4°95145 — 10 19286°2 
Vo = 
log 6, =3°40040 — 10 
(se) v obs, ek Obs, — R-P. 
P \(red. to vac.)| ” P- | Comp. |(i.c. p. 95). 
50 14818°2 | 14818-2 0-0 0:0 
60 16182°4 | 16182°3, +01 0:0 
(0) 17005°4 | 17005°3} +0:1 0-0 
80 175381 | 17539°5| -1-4 -17 
19. Helium. 
Ist PRINCIPAL SERIES. 
log a, = 495902 - 10 
20 = 38465" 
log b, = 311561 - 10 é aoe 
Obs. — 
(m+p)| — v obs. VCE. | Can K-R. 
214 25715°3 | 25715°3 0-0 0:0 
314 31369-2 | 31369-2 0-0 0-0 
4i4 33953°1 | 33953°2,| — 0-1 0-0 
_ oF4 35345°8 | 35345°6| +0°2 +0°2 
614 36180-°7 | 361805} +0:2 -O1 
w44 36720°8 | 36720°2| +06 -01 
814 37088°3 | 37089°1| -0°8 -07 
9214 37352°5 | 37353:2| -0°7 —0°3 
1034 375475 | 375467} —0°8 +0°3 
lst Sussrp1ary SERizs (2nd Component). 
log a,=4°95913 —10 
= 29231: 
log b, = 2°60695, — 10 Var seal 6 
(m+ p)| — v obs. vy comp. ae K-R 
30 17018°8 | 17018°8 0:0 0:0 
4:0 22363°5 | 22363°3; +02 0:0 
5:0 24836:5 | 24836°3| +0°2 0:0 © 
6:0 26180°0 | 26179:5|; +0°5 -—01 
7:0 26989°4 | 26989°4 0:0 —0°3 
8:0 97515:0 | 27514:°9) +01 —0°5 
9:0 97875:3 | 278752) +0°1 -07 
10:0 28133°3 | 28133°0} +0°3 -—1'1 
11:0 28323°8 | 283236] +0°2 - 1:0 
12:0 98468'7 | 284686} +01 —1:0 
13:0 2858173 | 28581:°5) —0°2 -—10 
14:0 28670°7 | 28670°9| —0-2 —12 
15-0 28743°3 | 28743°3 0:0 -1:2 
16:0 28802°7 | 28802°5) +0°2 —1:0 
17:0 928851°3 | 28851:°5) —0°2 a i 
18:0 288900 | 28892°5) -—2°5 — 3-4 
19:0 28927°3 | 28927°3 0:0 -07 
