OF THE VAPOURS OF BENZENE AND ITS HOMOLOGUES. 
513 
Table XIII.—-Absorption Bands in the Spectrum of Metaxylene Vapour at 
Different Temperatures and Constant Pressure. 
Abbreviations:—s., strong; f., feeble; b., broad; v.b., very broad; n., narrow. 
(Photographic Plate 7, 30.3.06.) 
11° C. 
A. 
s 
\ 
}' 
f. 
si 
1 } 
s 
N 
11 . 
S 
N 
2713 
08 
05 
2698 
94 
89 
44 
42 
36 
34 
28 
09 n, 
06 n 
03 
01 
2597 1 
95 J s ‘ 
44 
43 
38 " f. 
34 
3 
06 n 
01 n 
24981 f 
94 J 
94 n 
90 n 
84 n 
82 
79 
75 
73 
71 
22 ] 
191 
18 / 
I 23771 
N 75/ 
26 bands 
40° C. 
A. 
\ 
2673 
71 
70 
68 
67 
64 
51 
45 
42 
39 
36 
\ 
z 
s. 
\ 
s 
32 
30 
28 
25 
22 
19 
18 
16 
13 
10 
081 
04 J 
02 i 
2599 J 
97 
94 
90 " f. 
831 
78/ 
57 
54 
52 
Si 1 
49/ 
46 
41 
40 
37 
35 
30 
27 
04 
01 
2491 
89 
83 
82 
s. 
41 bands 
3 U 
70° C. 
A. 
\2689 
I 791 , 
601 , 
\ 28 / V ' b ' 
| 24201 
\ 18 / 
23661 
64/ 
\ 26 
Between AA 2612 
Between AA 2652 
2481 
and 2504 there 
and 2429 there 
78 
is a strong ab- 
is intense absorp- 
741 
\ 7lj s - 
32 
29 
22 n. 
20 
191 
S 17 j 8 ' 
2379 
sorption band. 
tion. The rays 
from A 2429 to 
2241 are trans¬ 
mitted. 
77 
671 
N 64/ 
7 bands 
6 bands 
100° C. 
A. 
2732 
26 
19 f 
16 
\ 10 
f. 
23681 
64/ 
\ 26 
It is a distinguishing feature of the bands 
in the metaxylene vapour spectrum 
that all more refrangible than A 2600 
are narrower and better defined than 
those in paraxylene, and again the 
bands in the latter are better defined 
and less diffuse, although broad, than 
those in the spectrum of orthoxylene. 
VOL. CCVill.—A. 
