126 
PROFESSOR W. N. HARTLEY AND MR. W. E. ADENEY 
The Spectrum of Arsenic (continued). 
Scale- 
numbers. 
Description of lines. 
Wave¬ 
lengths. 
Remarks. 
343-00 
Faint, short, nebulous, broad. . . . 
2279-0 
345-66 
Fairly strong , continuous. 
2272-3 
347-54 
Weak, discontinuous. 
2267-5 
362-80 
Fairly strong , continuous, nebulous 
2230-0 
372-30 
Weak, discontinuous. 
2207-0 
382-74 
Weak, discontinuous. 
2182-5 
385-24 
Weak, discontinuous. 
2176-8 
390-40 
Strong, continuous, broad, nebulous . 
2165-4 
394-44 
Strong, short. 
2156-7 
397-06 
Strong, short . 
21510 
398-64 
Strong, short . 
2147-8 
400-13 
Strong, continuous, broad, nebulous . 
2144-5 
404-75 
Strong, discontinuous, broad, nebulous 
2135-2 
415-22 
Strong, continuous, broad, nebulous, 
weak in tbe centre. 
2112-2 
The Spectrum of Antimony. 
Scale- 
numbers. 
Description of lines. 
Wave¬ 
lengths. 
Remarks. 
6-23 
Weak, discontinuous. 
47140 
There are very many strong and 
7-15 
Weak, short. 
4692-5 
nebulous lines in this spec- 
11-46 
Weak, fine, discontinuous. 
4599-0 
trum. Two of the longest and 
11-90 
Weak, short. 
4590-0 
strongest lines which are not 
16-09 
Weak, fine, discontinuous. 
4506-5 
nebulous are those with wave- 
18-75 
Weak, short. 
44570 
lengths 2597'2 and 2527"6. 
20-33 
Faint, short. 
4427-5 
23-10 
Weak, short. 
43750 
24-55 
Strong, short . 
4351-5 
26-62 
Weak, short. 
4316-1 
29-57 
Strong, short. 
4264-4 
32-37 
Weak, short. 
4218-5 
33-86 
Weak, short. 
4194-5 
35-38 
Faint, short. 
41700 
37-33 
Faint, short. 
4140-2 
87-82 
Weak, short. 
4132-8 
45-17 
Faint, short. 
4026-0 
46-05 
Weak, short. 
3984-9 
49-31 
Faint, short. 
3968-4 
49-53 
f Faint, short. 
3964T 
49-87 
\ Faint, short. 
3960-3 
51-86 
Weak, short. 
3933-2 
53-85 
Faint, very short. 
3907-5 
58-38 
Fairly strong , short. 
3849-7 
59-07 
Fairly strong, short. 
3840-2 
60-37 
Faint, short. 
38250 
64-78 
Faint, short. 
3771-0 
67-63 
Vert strong, short. 
3739-0 
69-10 
Weak, fine, continuous. 
3722-4 
