THE PROPERTIES OF WATER AND OF STEAM. 
123 
Determination of the Weight of the Smallest Quantity of Water. (A.)—(continued). 
Temperature. 
Volume. 
‘ 
Pressure. 
p. V. 
Weight. 
Mean weight. 
1 1 
Here more water rose in the tube and increased the weight. 
O 
cub. centims. 
millims. 
g-rms. 
grm. 
250 
1-7160 
2819 
4837 
0-002679 
1-5577 
3114 
4851 
0-002686 
1-4091 
3403 
4795 
0-002655 
1-1585 - 
4155 
4813 
0-002665 
0-002671 
260 
1-7165 
2872 
4930 
0-002678 
1-5580 
3144 
4899 
0-002662 
1-4094 
3478 
4902 
0-002663 
1-1588 
4220 
4890 
0-002657 
0-002665 
270 
1-7169.. 
2918 
5010 
0-002672 
1-5585 
3196 
4981 
0-002657 
1-4099 
3529 
4975 
0-002654 
1-1591 
4283 
4964 
0-002648 
0-002656 
General mean, 0'002664. 
These results can be verified by taking the weight at 270° as a standard, and calcu¬ 
lating the smaller weights by the equation 
p.v. p'v f 
273 + t : 273 + t' 
W : W' 
identical numbers with those found are obtained. 
Hence the largest weight at 250°, 260°, and 270° is 0'002664 grm. ; 
the second weight at 250°, 240°, and 230° is 0*002588 grm.; 
the first weight at 220° and 230° is 0‘002547 grm. 
The first weight holds also for lower temperatures. 
These data are adduced as a proof of the relative accuracy of the determinations 
which follow. 
