120 
DRS. W. RAMSAY AND S. YOUNG ON SOME OF 
Appendix. 
Volumes (Vapour pressures) and Compressibility of Liquid Water at various 
Temperatures. 
Tempera¬ 
ture. 
Divisions 
of tube. 
Pressure. 
Actual 
volumes. 
Tempera¬ 
ture. 
Divisions 
of tube. 
Pressure. 
Actual 
volumes. 
O 
millims. 
cub. centime. 
o 
millims. 
cub. centims. 1 
100 
256-85 
760 
1-1503 
210 
288-00 
17,488 
1-2937 
256-50 
19,651 
1-1488 
287-50 
31,467 
1-2912 
110 
258-80 
1,073 
1T546 
287-00 
43,405 
1-2888 
120 
260-95 
1,484 
1 1682 
220 
292-30 
17,622 
1-3138 
130 
263-10 
2,019 
1-1775 
} • 
292-00 
27,251 
1-3128 
140 
265-70 
2,694 
1-1900 
291-50 
39,432 
1-3105 
150 
268-25 
3,568 
1-1998 
230 
297-00 
21,085 
1-3367 
160 
271-05 
4,652 
1-2126 
296-50 
31,745 
1-3343 
170 
274-00 
5,937 
1-2267 
296-00 
42,249 
1-3319 
180 
277-10 
7,478 
1-2416 
240 
302-00 
25,276 
1-3584 
190 
280-60 
9,837 
1-2583 
301-50 
32,452 
1-3563 
280-50 
12,813 
1-2579 
301-00 
41,614 
1-3543 
280-00 
30,029 
1-2555 
250 
307-20 
30,059 
1-3801 
279-50 
39,904 
1-2532 
307-00 
36,040 
1-3793 
200 
284-20 
15,014 
1-2755 
306-50 
43,925 
1-3773 
284-00 
18,695 
1-2746 
260 
313-40 
35,028 
1-4059 
283-50 
30,513 
1-2723 
31300 
40,210 
1-4043 
210 
283-00 
288-05 
43,901 
14,404 
1-2698 
1-2942 
270 
319-50 
43,433 
1-4334 
Vapour-pressures of Water.—Individual Observations. 
Temperature. 
Pressure. 
Mean 
corrected.* 
Pressure.f 
Temperature. 
Pressure. 
Mean 
corrected.* 
Pressure.f 
o 
millims. 
'millims. 
millims. 
millims. 
millims. 
millims. 
120 
1,482 
140 
2,691 
1,484 
2,701 
1,483 
1,484 
1,445 
2,703 
2,694 
2,658 
1,493 
2,695 
1,483 
2,700 
130 
2,024 
150 
3,555 
2,022 
(Jacket 
3,552 
2,021 
2,019 
1,950 
C 6 H 5 Br) 
3,559 
3,553 
3,475 
2,018 
3,558 
2,022 
3,569 
* For deviation from Boyle’s law, and for vapour-pressure of mercury. In previous work the measure¬ 
ments of pressure were made rapidly ; after the volume had been increased to its maximum, it was 
diminished by stages, and pressure was read at each stage. The correction for vapour-pressure of mercury 
is in such a case not admissible. But in this research the temperature was allowed to remain constant 
for at least an hour before taking the first reading. 
t Observed with a much smaller quantity of liquid present—nearly all vapour. 
