252 
DR. H. T. BARNES ON THE CAPACITY FOR HEAT OF WATER 
Summary of the Specific Heat of Water from Smoothed Curve. 
Temperature ° C. 
d. 
J. 
o 
5 
+ -00250 
4-2105 
10 
- -00050 
4-1979 
15 
- -00250 
4-1895 
20 
- -00385 
4-1838 
25 
- -00474 
4-1801 
30 
- -00523 
4-1780 
35 
- -00545 
4-1773 
40 
- -00545 
4-1773 
45 
- -00520 
4-1782 
50 
- -00480 
4-1798 
55 
- -00430 
4-1819 
60 
- -00370 
4-1845 
65 
- -00310 
4-1870 
70 
- -00245 
4-1898 
75 
- -00180 
4-1925 
80 
- -00114 
4-1954 
85 
- -00043 
4-1982 
90 
+ -00025 
4-2010 
95 
+ -00090 
4-2038 
Mean value .... 
4-18876 
Variation of the Specific Heat of Water in Terms of a Thermal Unit at 
16° C. = 4-1883 joules. 
Temperature ° C. 
Observed values from 
curve. 
Calculated values from 
formulae. 
o 
5 
1-00530 
1-00446 
10 
1-00230 
1-00206 
15 
1-00030 
1-00024 
20 
1-99895 
0-99894 
25 
0-99806 
0-99807 
30 
0-99759 
0-99757 
35 
0-99735 
0-99735 
40 
0-99735 
0-99735 
45 
0-99760 
0-99757 
50 
0-99800 
0-99807 
55 
0-99850 
0-99894 
60 
0-99910 
0-99910 
65 
0-99970 
0-99972 
70 
1-00035 
1-00036 
75 
1-00100 
1-00100 
80 
1-00166 
1-00166 
85 
1-00237 
1-00233 
90 
1-00305 
1-00301 
95 
1-00370 
1-00370 
Mean value . . 
1-00012 
