958 REV. T. R. ROBINSON ON SPECTRA OE ELECTRIC LIGHT. 
Table VII. — Iron. 
Air. 
Nitrogen. 
Oxygen. 
Hydrogen, 
Carb. oxide. 
C.P. 
E. 
C.P. 
E. 
C.P. 
E. 
C.P. 
E. 
C.P. 
E. 
1. 
32 
37-1 nf. 
36-8* 
2. 
a, 
38-4 »)= 
38-4* 
38-4 vb. 
1387 vfo. 
3. 
a' 
40 c. 
40-3 of. 
39-8 n. 
39'7 *0. 
...... 
397 vf. 
4. 
41-5 b. 
42-3 c. 
42-9 of. 
427 vf. 
43'3 vfo. 
5. 
|8 
45-5 c. 
44-8 f. 
44-9 vf. 
6. 
00 
47-5* 
47-5 of. 
47-8 » 
47-9 vb. 
47‘8 vfo. 
7. 
50-2 b. 
50- 1 f. 
49 8 c. 
49-8 f. 
49-4 b. 
507* 
8. 
52-4 f. 
51-1 f. 
517 f. 
51-4 
517n. 
9. 
54-4* 
53-5 J 
If. 
10. 
y 
55 -if- 
57-3 vf. 
55-3 c. 
557* 
55 '3 wb. 
11. 
32 
59-7 f. 
60-3.vf. 
59-3 c. 
0-8 c. 
07 vn. 
58 f. 
58-6 b. 
many 
seen. 
12. 
33 S 
4-2* 
2 
nb. 
4-7 
2-6 
lb. 
double. 
3-3 
u 
5 
lb. 
13. 
6 1 » 
5-8 nc. 
6'2 bw. 
6 
b. 
6 b. 
14. 
7-7 
8-7 vb. 
7 Jn 
8 
b. 
15. 
9'5 Tery 
10-4 b. 
10 
b. 
many 
seen here. 
16. 
11-7 
10-7 
In. 
11-4 f. 
11-8 
117 nc. 
12 
fb. 
107 nb. 
11-4 
b. 
17. 
14 vb. 
14 f. 
13-4 1 n. 
b. 
13 7 1 nb. 
18. 
15 1 vb. 
15-4 
15'4 In. 
15-8 c. 
14-8 w2f. 
147 
b. 
15'4 Inb, 
19. 
? 
17/vb. 
16-7 
18 
ff. 
17-7 J n. 
167 J 
b. 
17-4 J nb. 
20. 
20 vb. 
19 2 f. 
20 nf. 
20 f. 
21-8 
20 
21. 
22-4 vb. 
22:8 1 n. 
22-8 c. 
2M 
23-4 j 
22. 
24'8 #w2. 
24-7* 
241 
23-7* 
25-3 / n. 
24-2 b. 
25-4 
247 J * 
23. 
26-7 vf. 
26-1 
nb. 
26-1 vf. 
24. 
28-7 vf. 
29-4 f. 
297 vf. 
301 vb. 
29 4 wb. 
25. 
31-5 f. 
30-7 f. 
30-8 
lb. 
32-8 vf. 
32-3 vn. 
32-7 c. 
32-8 vb. 
32-8 vf. 
31-8 J 
nvf. 
26. 
6 
34 * 
33'4 # 
double. 
double. 
27. 
35-5 f. 
35-8 vb. 
34‘8 vn. 
35-1 vf. 
28. 
36-5 c. 
36-8 f. 
37-5 vf. 
36‘2 vfn. 
36-1 vb. 
many. 
others 
seen. 
29. 
39 c. 
39-7 f. 
39-4 f. 
38-3 nf. 
38'8 vn. 
37-5 nf. 
30. 
40-5 e. 
41-1 b. 
40-8 nf. 
40-8 b. 
39-8 nc. 
407 
41 '2 #w®. 
40- 1 vf. 
31. 
44-7 b. 
44-1 » 
43-8 b. 
437 nc. 
44-1 f. 
1 
43-4 1 * 
447 J n. 
32. 
45-5 1 c. 
45 
lb. 
46-5 jc. 
46-7 
fb. 
467 
33. 
48-5 1 
f. 
48 vf. 
...... 
34. 
49-3 
f. 
491 i 
nb. 
49-3 1 nf. 
35. 
51-3 
c- 
50-3* 
507 vfw. 
51-3 
* 
50-3 Inf. 
36. 
1 
52-4 * 
53-7 b. 
53-6 
f. 
53'3 wb. 
52-8 nc. 
53-3 
nb. 
52-3 J nf. 
37. 
55 b. 
55‘6 * 
54-3* 
55 '2 nc. 
- 
55-3 
y-tf- 
38. 
K 
566 * 
56-6* 
seen. 
...... 
39. 
k' 
57-3* 
57‘2 vn. 
57-8 » 
57 
nc. 
40. 
33k" 
59-3* 
58-5# 
58-8 J 
* 
41. 
34 
1-2 c. 
1-7 
b. 
1-1 vf. 
...... 
many. 
42. 
\ 
4‘5 c. 
3-6 
b. 
3-8 i n. 
43. 
5-2 
b. 
5-9 vb. 
... 1 ... 
5-8 c. 
57 c. 
6-2* 
44. 
8-7 b. 
7-5 f. 
7-3 fn. 
8-8 ] 
nb. 
8-2 1 vf. 
45. 
10-1 ] 
* 
9-8 ) n. 
101 J 
" nb. 
101 Uf. 
46. 
12 * 
11-4 J 
'' * 
12-8* 
127* 
12-4 J vf. 
many. 
47. 
15-5 b. 
14 1 
f. 
15-4 1 no. 
48. 
16-8 « 
18-7 
16-3 
18-6 
20-9 
f. 
f. 
fi. 
15-4 ] n. 
18 }.n. 
17-3 n. 
16-8 wf. 
17-9 stwL 
177 w. 
167 1 
18-6 
b. 
167 Uc. 
18-6 J nc. 
V 
20 vb. 
21'9 vb. 
19‘3 J n. 
18-8 c. 
21-8 nc. 
21-3 
b. 
22'6 nc. 
23-7 vb. 
23-9 
f. 
24-8 nb. 
26'5 vb. 
28-2 f. 
26-2 j 
f. 
265 
27-3 nb. 

25-8* 
1 
30'8 *w3. 
29-8* 
31-4 f. 
30-4 f. 
32-5 b. 
37 f. 
34-7 f. 
33-1 nc. 
35-7 b. 
34-4 f. 
33-8 b. 
34-4c. 
33 7 c. 
36 f. 
0 
39 f. 
39 f. 
d7‘8 1 n. 
377 c. 
42-3 f 
— 
40-8 f. 
41'6 c. 
42-3 
44-2 nc. 
... f... 
44-2 f 
51-5 
47-5 
46-8 J f. 
47-3 
50-2 
52 1 
These are beautiful spectra, the red brilliant, the violet part specially so, but the 
yellow often feeble. In air and CO, C.P., the green has a very great number of close 
narrow lines. In CO, E., the bright lines are very brilliant, the others unusually faint. 
N and CO were taken with Duboscq. 
