36 
Proceedings of the Royal Society 
XYI. Dry Air . — The same air as in the last experiment, both 
compartments of the jacket having been again filled with water 
until the pressure had become constant. 
Time. 
Pressure. 
Time. 
Pressure. 
m. 
s. 
m. 
s. 
0 
0 
. 9085-3 
5 
30 
9107-3 
0 
14 
9084-3 . 
6 
20 
9113-3 
0 
20 
9083-3 
6 
47 
9117-3 
0 
26 
9082-3 
' 7 
25 
9122-3 
0 
36 
9081-3 
8 
0 
9127-3 
0 
53 
9080-3 
8 
0 
r Steam issuing 
1 
5 
9081-3 
i freely. 
1 
14 
9082-3 
8 
31 
9132-3 
1 
40 
9084-3 
9 ■ 
16 
9137-3 
1 
55 
9085-3 
11 
10 
9140-3 
2 
9 
9087-3 
13 
2 
9141-3 
2 
50 
9092-3 
15 
50 
9142-3 
3 
37 
9097-3 
21 
35 
9142-5 
4 
35 
9102-3 
• 24 
0 
9142-5 
XYIL Mixture of Air and Olefiant Gas, containing 1*1 yer cent, 
hy volume of Olefiant (ras.— The absorber being full of the dry air 
of last experiment, both compartments of the jacket were filled with 
running water of temperature 12° G. When the pressure had be- 
come constant, and had the value 9154T, dry olefiant gas was 
driven into the absorber at B (C being kept closed) until the 
pressure had risen to 9256 ’S. Of the gas which the absorber 
contained, therefore 1 T per cent, by volume was olefiant gas. The 
olefiant gas was prepared in the same manner as before, from 
rectified spirit and pure sulphuric acid. 
Time. 
Pressure. 
Time. 
Pressure, 
m. s. 
0 0 
9173-8 
m. s. 
1 25 
9174-3 
0 
11 
9173-2 
1 
38 
9176-3 
0 
24 
9172-2 
1 
47 
9178-3 
0 30 
9171-2 
2 
4 
9181-3 
0 45 
9170-2 
2 
21 
9184-3 
0 55 
9171-2 
2 
30 
9186-3 
1 
7 
9172-2 
2 38 
9189-4 
