THE PROPERTIES OF WATER AND OF STEAM. 
109 
Temperature. 
Volume of 1 
grm. in c.cs. 
Temperature. 
Volume of 1 
grm. in c.cs. 
Observed. 
Smoothed. 
Observed. 
Smoothed. 
C 
100 
1-0432 
1-0432 
o 
190 
1-1412 
1-1407 
110 
1-0510 
1-0513 
200 
1T567 
1T566 
120 
1-0594 
1-0592 
210 
1T734 
1-1733 
130 
1-0678 
1-0678 
220 
1-1915 
11914 
140 
1-0791 
1-0772 
230 
1-2122 
1-2112 
150 
1-0880 
1-0878 
240 
1 2319 
1-2320 
160 
1-0996 
1-0995 
250 
1-2516 
1-2533 
170 
1-1124 
1-1124 
260 
1-2750 
1-2755 
180 
1-1260 
1-1260 
270 
1-3000 
1-2985 
Note.— The pressures are here nearly those of the vapour at the respective temperatures. 
The volumes of 1 grm. of water have been measured by Mendel^eff (‘ Liebig’s 
Annalen,’vol. 119, 1861, p. 10), and by Hlrn (‘ Annales de Chimie’ [4], vol. 10, 
1866, p. 32). The following short Table shows that Hern’s results agree very closely 
with those given by us :— 
Temperature. 
Volume of 1 grm. 
MENDELtEFF. 
Hirn. 
R. and Y. 
o 
100 
1-0428 
1-04315 
1-0432 
120 
• » 
1-05992 
1-0594 
131 
1-0722 
# # 
# # 
140 
. . 
1-07949 
1-0791 
156-8 
1-1016 
. , 
# # 
160 
. , 
1-10149 
1-0996 
180 
. , 
1-12678 
1-1260 
200 
1-15900 
1-1567 
The compressibility of water was measured at 190° and at higher temperatures. 
The results are as follows :— 
