ON EVAPORATION AND DISSOCIATION. 
93 
Temperature, 220°. 
Volume of 
1 gramme. 
Pressure. 
Volume of 
1 gramme. 
Pressure. 
Volume of 
1 gramme. 
Pressure. 
c.cs. 
mms. 
c.cs. 
mms. 
C.CS. 
mms. 
22-635 
14,886 
9-189 
27,584 
4-028 
37,740 
19925 
16,451 
7-887 
29,708 
3-389 
40,278 
17-219 
18,357 
6-598 
32,123 
3-069 
42,630 
14-513 
20,772 
5-954 
33,325 
2-749 
46,921 
11-836 
23,763 
5-311 
34,715 
2-622 
50,342 
10-505 
25,542 
4-669 
36,201 
2-558 
52,753 
Temperature, 250°. Pressure of bromonaphthalene vapour, 386'35 mms. 
Volume of 
1 gramme. 
Pressure. 
Volume of 
1 gramme. 
Pressure. 
Volume of 
1 gramme. 
Pressure. 
C.CS. 
mms. 
C.CS. 
mms. 
C.CS. 
mms. 
22-651 
16,223 
10-513 
29,074 
5-315 
43,259 
19-938 
18,058 
9-195 
31,741 
4-672 
46,155 
17-231 
20,269 
7-892 
34,815 
4-351 
47,884 
14-523 
23,110 
6-602 
38,513 
4-031 
50,129 
11-844 
26,789 
5-958 
40,664 
3-711 
52,599 
Temperature, 280'35°. Pressure of bromonaphthalene vapour, 758’2 mms. 
Volume of 
1 gramme. 
Pressure. 
Volume of 
1 gramme. 
1 
Pressure. 
Volume of 
1 gramme. 
Pressure. 
C.CS. 
mms. 
c.cs. 
mms. 
C.CS. 
mms. 
22-669 
17,806 
10-521 
33,349 
5-963 
49,552 
19-954 
19,881 
9-203 
36,777 
5-642 
51,598 
17-245 
22,499 
7-899 
41,084 
5-3l9 
53,841 
14-535 
25,834 
7-253 
43,537 
11-853 
30,430 
6-607 
46,552 
At 175° and at 280° the readings of pressure were double, one set being- made with 
rising and the other with falling pressures; the means are given. 
