DETERMINATION 
The weighings are supposed to be correct to *1 mmillim., and in the mean of any two 
OF THE SPECIFIC HEAT OF WATER. 
observations the second decimal may be retained as having some significance. 
temperature and pressure corrections were calculated for safety to 001 millim., and 
it was found more convenieut to carry out the calculations to that place, cutting off 
the unnecessary figure at the end. 
THE temperature was measured by subdividing a thermometer division of 0°02 to 
(4.) Temperature Observations. 
the 100th part by the eye; each reading is probably right to 0°-0004. 







Time. Temperature. Time. Temperature. 
h. m. h. | 
11 48 17: 2200 12 11 | Main cirenit broken 
9 30 Auxiliary circuit made 
50 one 12 19-7512 
1 2312 
| : 3 24, 
2 60 
: 4, 56 
3 96 5 80 
4 24.32 6 9 
BY 80 f 
: 7 7616 
6 2516 
8 40 
7 60 9 76 
8 2604 
20 96 
2 2 1 | 7712 
12 00 86 
1 Circuit made 2 | 36 
si 3 56 
4 | 80 
| 

By the methed of least squares, we obtain from the preceding observations :— 
Mean rate of rise per minute in the first period 
Temperature at 12" 1™ 
Mean rate of rise per minute in ie ‘third Daried 
Temperature at 12512 . 
0°:00406 
17-2722 
0°'00227 
19°°7508 
The readings of the centiampere balance at equal intervals of time were 
or a mean reading of 61°26. 
MDCCCXCV.—A. 
62°06 
61°86 
61°46 
60°56 
60°36, 
3 0 

