338 
On the Measure oj Temperature f 
It now only remains, in order to verify the accuracy of the preceding law, to 
compare it with the different series included in the table we have given above. Let 
us begin with that in which the surrounding matter was at 0° ; in this case we 
must put m — 2,037, and we shall have 
V = 2,073 (a* — 1) 
in which a = 1,0077 
Excess of temp, 
of thermome- 
ter, or values 
of t. 
Observed 
values of V. 
Calculated 
values of V. 
240° 
10°, 69 
10°, 68 
220 
8 ,81 
8 ,89 
200 
7 ,40 
7 ,34 
180 
6 ,10 
6 ,03 
160 
4 ,89 
4 ,87 
140 
3 ,«8 
3 ,89 
120 
3 ,02 
3 ,05 
100 
2 ,30 
2 ,33 
80 
l ,74 
1 ,72 
Let us now take the series observed when the surrounding mass was at 20°, the 
preceding coefficient of (at — 1) must be multiplied by = 1,165, we shall then 
have 
V — 2,374 («* — 1) 
Excess of temp, 
or values of t. 
Observed 
values of V. 
Calculated 
values ofV. 
240° 
12°, 40 
12«>,46 
220 
10 ,41 
10 ,36 
200 
8 ,58 
8 ,56 i 
180 
7 ,04 
7 ,01 
160 
5 ,67 
5 ,68 
140 
4 ,57 
4 ,54 
120 
3 ,56 
3 ,56 
100 
2 ,74 
2 ,72 
80 
1 ,99 
2 ,00 
60 
1 ,40 
1 ,38 
40 
0 ,86 
0 ,85 
20 
0 ,39 
0 ,39 
We may now proceed to the series in which the surrounding matter was at 40*'; 
the preceding coefficient of (at — I) must again bo multiplied by a a0 = 1,165, 
thus, 
F= 2,766 (at — 1) 
Excess of temp, 
or values of t. 
Observed 
values of V. 
Calculated 
values of V. 
240° 
14°, 35 
114°44 
220 
11 ,98 
2 ,06 
200 
10 ,01 
9 ,97 
180 
8 ,20 
8 ,17 
160 
6 ,61 
6 ,62 
140 
5 ,32 
5 ,29 
120 
4 ,15 
4 ,14 
100 
3 ,16 
3 ,17 
80 
2 ,30 
2 ,33 
60 
1 ,6.2 
1 ,61 
