962 
EEV. T. E. EOBINSON ON SPECTEA OE ELECTEIC LIGHT, 
Table X. — Zinc. 
Air. 
Nitrogen. 
Oxygen. 
Hydrogen. 
Carb. oxide. 
C.P. 
E. 
C.P. 
E. 
C.P. 
E. 
C.P. 
E. 
C.P. 
E. 
1. 
o 
32 
37-3 f. 
38 0 . 
2. 
Ct 
38-7* 
38-4* 
38-7 
39-4 
39 * 
39-6 * 0 . 
3. 
a 
40-5 vb. 
39-7 b. 
41-4 n. 
41-3 fo. 
40 
4. 
43 « 
42-9 f. 
42-8 f. 
44-4 n. 
42-5 vfo. 
5. 
p> 
45-9 f. 
45 '9 vf. 
46-4 n. 
6. 
/3' 
48'2 bn. 
48-1 vb. 
48-2 
7. 
50-3* 
50-1 vf. 
511 vf. 
51-4 n. 
50-5 
If. 
8. 
52' 1 vb. 
52-1 f. 
52-6 vf. 
52 f. 
52 vfo. 
9. 
V 
54-7 
54-8 f. 
54'4 * 
53-7 vf. 
54-4 n. 
55 -vf. 
55 fo. 
10. 
56'3 nc. 
56 vf. 
57 vb. 
11. 
58'3 vn. 
57-4 vn. 
12. 
32 
60 b. 
59-6 vb. 
59-5 f. 
13. 
33 
1'6 nb. 
2 '3 vnc. 
14. 
S 
4-5 f. 
3-3 
3-4 n. 
3-8 vf. 
4-5 f. 
4-6 b. 
4 nf. 
15. 
6 b. 
7-4 
6-8 c. 
7 
Ic. 
7 e. 
16. 
t 
9-5 b. 
8-3 b. 
9-4 b. 
9-5 vf. 
9 
fc. 
17. 
t' 
10-8 1 b. 
10-4 
lb. 
10-8 nc. 
18. 
... 
11 
fb. 
11-7* 
11 
11-5 e. 
19. 
e" 
12-7 J b. 
13-5 1 f. 
12-4 b. 
13 
20. 
..... 
... 
14-8 fw2. 
15-5 
14-5 f. 
21. 
% 
18 b. 
16-3 J f. 
17 bw4. 
17-2w2. 
17 
16 vf. 
22. 
20-4 f. 
19-8 n. 
19 
jf. 
20-5 vf. 
23. 
.... 
23-7 
1 b. 
23-4 -I bn. 
23-8 b. 
21 
1 c. 
1 
brightest. 
23 
|c. 
24. 
91 
24-8* 
25‘5 * 
24-4 
251 
J b. 
24-4 [ bn. 
25 vf. 
25-5* 
25 * 
25. 
25-7 nf. 
26-4 J bn. 
26. 

27-1 nf. 
27-1 
27-5 n. 
27. 
29-1 nf. 
291 
28-8 w. 
29 f. 
28. 
3M f. 
31-1 vb. 
311 
30-4 f. 
30 Bv. 
29. 
32-4 n. 
32-1 vn. 
30. 
6 
33-7* 
34-7 f. 
33-5 « 
33-1 
34-4 bn. 
34 c. 
34 * 
34 ri. 
31. 
361 f. 
35-5 
35-8 w. 
32. 
37-8 *w2. 
37-4 i vb. 
37 nb. 
33. 
. . . . 
38-4 Ivb. 
38 vf. 
38 f. 
34. 
40 f. 
391 f. 
39- 1 f. 
39-4 J vb. 
35. 
42 f. 
41-7 w. 
41-7* 
42-4 w^. 
41-3 b. 
42 5|:W^. 
41-5 *w^. 
42 *vb. 
36. 
44-7* 
43-7 
lb. 
43-8 bw. 
44-5 vfh. 
44 b. 
37. 
45-8 c. 
45-7 
lb. 
45 
J b. 
45-9 b. 
45-6 b. 
38. 
46-4 
\h. 
46 fn. 
47 ne. 
39. 
49 * 
48-7 nf. 
47-8 n. 
49-51 
fn. 
48 fn. 
a fine one 
40. 
1 
o0‘3 * 
50-5 f. 
50-3 vf. 
50-3 'i 
c. 
50-9 vn. 
50-6 f. 
50-5 f. 
41. 
52 f. 
52-3 
c. 
52 vf. 
52 
* 
42. 
53 * 
53-6 f. 
52-9 
53-6 vf. 
53 
c. 
43. 
K 
55-6* 
55 f. 
55-9 
55 
c. 
56 f. 
56 f. 
44. 
x' 
56-8 » 
57-2* 
56-6 
c. 
57-4 #w. 
56-8 n. 
57 
n. 
45. 
33*” 
59 * 
58-2 
58-5 nf. 
59-9 vn. 
59 f. 
59 J 
b. 
46. 
34 
1 f. 
2 
b. 
Ml 
bn. 
0-4 * 
1-8 vfw. 
1 ^ 
f. 
1 f. 
47. 
X 
3-1 c. 
3-9 
lb. 
2-6 
^bn. 
4 vfw. 
3 
f. 
48. 
5-8 b. 
5-9 
f. 
5 -9 nc. 
49. 
7 f. 
7-2 vb. 
6-4 f. 
6-8 b. 
6-5 
1-f. 
7 bw. 
double. 
50. 
9-1 f. 
8-5 f. 
8-5 nf. 
8-5 
f. 
51. 
11-3 vb. 
Ill 
10-4 ] nb. 
11 vf. 
11 J 
f. 
52. 
12-7 
u 
12-9 1 nb. 
11-5 vf. 
53. 
13-7 b. 
13-8 1 
f. 
13 * 
13 n. 
54. 
14-2 b. 
15-1 f. 
14-4 i 
f. 
14-9 Jb. 
a fine one 
14 £ 
14 vf. 
00. 
17-7 
f. 
18-31 
b. 
18-4 1 n. 
17 1 
b. 
16-5 vf. 
56. 
V 
20 * 
20 f. 
20-3 
f. 
20-4 
b. 
20-9 in. 
22-8 j 
f. 
21 :t:W®. 
21 c. 
19 
20 c. 
57. 
235 
►f. 
23-2 
nc. 
23-9 J n. 
23-8 f. 
— 
22 
b. 
58. 
24-91 
n. 
24 1 
f. 
24 e. 
59. 
25-5 
vb. 
... 
60. 
27 f. 
2^8] 
27-9 
f. 
28-2 bw4. 
27-8 f. 
27 nc. 
27 
* 
28 c. 
61. 
30 * 
29-8 1 
vb. 
29 '5 nc. 
29 ; 
n 
30-5] 
b. 
62. 
32-1 nc. 
33 f. 
34-1 vb. 
63. 
a 
35 f. 
36’7 vn. 
35-4^ 
nf. 
35-8 f. 
35-5 c. 
35 f. 
36-7 
nf. 
36-4 c. 
65. 
39 f. 
38-6 
f nf. 
66. 
— 
40-6; 
nf. 
40-9 nf. 
42-5 c. 
67. 
45-2 f. 
45-9 nc. 
44-4 nf. 
44 fw. 
68. 
52-5 
49-8 c. 
49-4 f. 
48 
561 vf. 
This is one of the most splendid spectra, especially at the violet end. N, R., is 
remarkable for its brightness and the number of its lines. CO, E,., has the discharge 
lilac-coloured instead of green, as is generally the case in this gas. 
