156 
PROFESSOES W. RAMSAY AND S. TOUYG 
Volumes Larger than Critical Volume. 
Volume. 
Temperature. 
130“ 
1.50° 
180° 
200° • 
220° 
230° , 240° 
1 
250° 260° 
263°'64 
270° 
280° 
C.CS. 
o 
4 
5 
6 
7 
8 
9 
10 
12 
14 
16 
18 
20 
25 
30 
40 
50 
60 
80 
100 
120 
140 
170 
200 
2,258 
1,955 
3,898 
3,321 
2,876 
2,391 
2,063 
♦ • 
7,780 
6,695 
5,210 
4,252 
3,606 
3,120 
2,590 
2,224 
12,474 
9,998 
8,299 
7,109 
5,504 
4,488 
3,796 
3,283 
2,724 
2,332 
17,660 
15,340 
13,430 
10,656 
8,818 
7,523 
5,798 
4,724 
3,985 
3,447 
2,857 
2.439 
21,130 
19,800 
18,480 
15,940 
13,910 
10,985 
9,078 
7,730 
5,945 
4,842 
4,080 
3,528 
2,923 
2,493 
25,710 
23,910 
22,220 
20,7.30 
19,310 
16,540 
14,390 
11,314 
9,337 
7,937 
6,092 
4,960 
4,175 
3,610 
2,990 
2,547 
30,.390 
29,430 
27,270 
25,190 
2.3,310 
21,660 
20,130 
17,150 
14,860 
35,190 
34,000 
32,650 
31,360 
28,820 
26,470 
24,390 
22,580 
20,950 
17,750 
15,340 
11,972 
9,856 
8,351 
6,386 
5,196 
4,365 
3,772 
3,122 
2,6.54 
38,120 
38,120 
37,960 
37.280 
36.280 
.34,940 
33,480 
43,000 
41,680 
40,850 
39,610 
38,190 
36,580 
34,920 
33,.300 
30,380 
27,776 
25,480 
23,510 
21,780 
18,350 
15,820 
50,660 
47.280 
45,380 
43.280 
41,200 
39,150 
.37,180 
35,230 
31,940 
29,040 
26,570 
24,440 
22,600 
18,950 
16,300 
12,630 
10,375 
8,765 
6,680 
5,432 
4,555 
3,935 
3,255 
2,762 
These pressures agree very well with those read dkectly from the isotherms, except 
near the condensing point at low temperatures, and to a much smaller extent at high 
temperatures. The greatest error is at the lowest .pressure at 150°, and amounts to 
1’45 per cent. 
The approximate critical temperature of propyl alcohol is 263°'7, the approximate 
critical pressure 38,120 mms., and the approximate volume of 1 grin. 3'6 c.cs. The 
first two of these constants must be very nearly correct; the third ca.nnot be deter¬ 
mined with nearly the same accuracy. 
