ON EVAPORATION AND DISSOCIATION. 
325 
Pressure of 
aniline. 
Temperature. 
Volume of 1 gramme. 
Pressure. 
Vapour-density. 
mms. 
O 
c.cs. 
mms. 
386-0 
160 
452-63 
1,846 
16-11 
332-85 
2,484 
16-28 
265-91 
3,085 
16-40 
199-61 
4,049 
16-65 
166-78 
4,777 
16-89 
134-20 
5,855 
17-13 
101-77 
7,505 
17-62 
85 f 58 
8,707 
18-06 
69-42 
10,282 
18-85 
61-29 
11,299 
19-43 
53-22 
12,518 
20-20 
49-97 
12,965 
20-77 
Vapour-pressure 
- 13,011 
204-6 
140 
101-72 
6,890 
18-31 
85-53 
7.878 
19-05 
82-32 
8,024 
19-43 
77-45 
8,046 
20-60 
V apour-pressure 
- 8,056 
Chlorobenzene. 
542-8 
120 
452-17 
1,658 
16-29 
400'64 
1,860 
16-39 
832-51 
2.212 
16-61 
282-31 
2,584 
16-74 
249-01 
2,900 
16-91 
199-41 
3,539 
17-31 
166-61 
4,120 
17-79 
142-15 
4,684 
18-34 
Vapour-pressure 
= 4,705 
292-75 
100 
451-95 
1,560 
16-44 
400-44 
1,739 
16-65 
332-34 
2,065 
16-89 
282-17 
2,391 
17-18 
265-52 
2,496 
17-49 
248-89 
2,591 
18-12 
V apour-pressure 
= 2,597 
Reduction and Arrangement of Results. 
1. Vapour-pressures .—The vapour-pressures determined by us with quantities 
A, B, C, and C', as well as the vapour-pressures calculated from these observations by 
the formula log p = a + ba ( -f c/3 and pressures calculated by Regnault, who also 
employed Biot’s formula, are given in the following Table • 
