356 PROF. A. FOWLER AND MR. C. C. L. GREGORY ON THE ULTRA-VIOLET 
Data for the consideration of the regularity in these series are collected in 
Tables I. and II., the first referring to a, ft, y, and the second to S, e, £ The wave- 
Table I. — The Series a, ft, y. 
cc series. 
ft series. 
' 
y series. 
A, I.A. 
v, vac. 
ch. 
d 2 . 
A, I.A. 
i>, vac. 
ch. 
d 2 . 
A, I.A. 
vac. 
d x . 
d 2. 
3450-36 
28,974-34 
28-33 
3450•36 
28,974-34 
28-33 
46-99 
29,002-67 
28-05 
- 3 
46-99 
29,002-67 
28-13 
-2 
43•66* 
030*72 
27-77 
- 3 
43-65* 
030*80 
27-85 
-3 
40-37* 
1 
058-49 
27-81 
0 
40-35* 
058-65 
27-91 
1 
3440-33 
29,058-82 
28-23 
37-08* 
086-30 
27-95 
1 
37-05* 
086-56 
28-03 
1 
36-99 
087-05 
28-30 
1 
33-78 
114-25 
28-00 
1 
33-74 
114*59 
28-25 
2 
33-65 
115-35 
28-43 
1 
30-48 
142-25 
28-32 
3 
30-41 
142-84 
28-40 
2 
30-30 
143-78 
28-66 
2 
27*15 
170-57 
28-45 
1 
27-07 
171-24 
28-80 
26-93 
172-44 
28-97 
3 
23-81 
199-02 
28-86 
4 
23-69 
200-04 
29-12 
3 
23-53 
201-41 
29-20 
2 
20-43 
227-88 
29-00 
1 
20-28 
229-16 
29-17 
1 
20-11 
230-61 
29-52 
3 ! 
17-04 
256-88 
29-13 
1 
16-87 
258•33 
29-49 
3 
16-66 
260-13 
29-84 
3 
13-64 
286-01 
29-37 
2 
13-43 
287-82 
29-89 
4 
13-18 
289-97 
30-22 
4 ! 
10-22 
315-38 
29-60 
2 
09-95 
317-71 
30-28 
09-66 
320-19 
30-47 
3 i 
; 06-78 
344-98 
29-92 
3 
06-43 
347-99 
30-44 
2 
06-12 
350-66 
30-88 
4 
3403-31 
374-90 
30-24 
3 
3402-90 
378-43 
30-78 
3 
3402-54 
381-54 
31-20 
3 j 
3399-81 
405-14 
30-39 
2 
3399-34 
409-21 
31-09 
3 
3398-93 
412-74 
31-72 
5 
96-30 
435-53 
30-54 
2 
95-75 
440-30 
31-50 
4 
95-27 
444-46 
31-93 
2 
92-78 
466-07 
30-85 
3 
92-12 
471-80 
31-83 
3 
91-58 
476-39 
32-64 
7 
89-23 
496-92 
30-76 
- 1 
88-46 
503-63 
32-25 
4 
87-84 
509-03 
32-87 
2 
CO 
o< 
o 
527-68 
30-64 
- 1 
84-76 
535•88 
32-50 
3 
84-07 
541-90 
33-65 
8 1 
82-19 
558-32 
30-44 
_ 2 
81-04 
568-38 
33-09 
6 
80-22 
575-55 
34-43 
8 
78-71 
588-76 
29-63 
- 8 
77-26 
601-47 
34-40 
13 
76-29 
609-98 
35-99 
16 
75 • 33 
618-39 
27-58 
-21 
73-34? 
635-87 
72-19? 
645-97 
72-19? 
645-97 
* Unresolved; separations assumed. 
