268 
MR. J. NORMAN LOCKYER ON SPECTRUM-ANALYSIS 
Plate XI. Strip V. — COBALT (continued). 
Wave-length. 
Length. 
Whether re- 
versed in the 
Solar Spec- 
trum. 
Whether in 
the Spark- 
Spectrum of 
the Chloride. 
Remarks. 
5279-6 
4 
Reversed. 
5267-2 
4 
11 
5265-8 
4 
5234-4 
4 
5230-0 
2 
Not reversed. 
This line is slightly shorter than the others to 
5212-0 
3 
which the number 2 is assigned. 
CD 
f These lines are a little shorter than the others 
4867-0 
4 
Reversed. 1 
a> 
marked 4, and would drop out of the solar spec- 
4839-0 
4 
„ J 
m 
rO 
trum first should a diminution of the thickness of 
-4-3 
the reversing layer occur. 
4813-5 
2 
Not reversed. 
o 
0 
4791-7 
4 
Reversed. 
<D 
This line is also a little shorter than the others 
marked 4. See remarks on 4867-0 and 4839-0 
4778-7 
4 
3 
above. 
4748-5 
Not reversed. 
o 
This line could not be identified. 
4580-8 
2 
This line is coincident with a calcium line, and 
also with one of iron ; in calcium it is long and 
rather faint (intensity 4, Thai^n) ; in cobalt it is 
short and faint (intensity 4, Thales) ; in iron its 
4530-5 
4 
Reversed. 
intensity is unknown. 
Plate 
XII. Strip 
I.— NICKEL. 
6175-7 
3 
Reversed. 
6115-3 
2 
11 
6107-5 
2 
11 
5892-0 
2 
5856-5 
2 
11 
5475-9 
4 
11 
5175-6 
2 
5? 
5168-3 
2 
?? 
5155-1 
2 
?> 
5145-7 
2 
J5 
5142-0 
2 
11 
5136-8 
2 
11 
5114-9 
2 
11 
5099-7 
3 
11 
5098-5 
3 
11 
Ph 
<D 
5080-6 
3 
11 
m 
rO 
5079-7 
3 
11 
-4-3 
5034-6 
2 
11 
O 
0 
5016-5 
2 
11 
O 
4983-3 
2 
11 
4979-6 
2 
11 
3 
4935-1 
3 
11 
o 
4917-6 
1 
Not reversed. 
4903-9 
3 
Reversed. 
4872-9 
1 
Not reversed. 
4865-3 
2 
Reversed. 
4854-7 
3 
4830-2 
2 
4828-4 
2 
4785- 8 
2 
4755-0 
3 
4713-7 
4 
4647-0 
3 
4401-7 
4 
11 
