




438 PROFESSOR A. SCHUSTER AND MR. W. GANNON ON A 
TABLE V. 
1. ilk, IQUE, | IV. 
| | 
Comparison. Ty. : of A. 
1 | 12-585 +0:0072 +0:0010 
| 2 | 12-643 | +0:0068 +0:0014. 
| 3 | 12-885 | +0:0073 +0:0006 
4 12-923 | +0:0051 | +0-0028 
5 13-068 | +0:0068 +0:0010 
6 13315 | +0:0099 —0-0014 
7 13-393 +0°:0088 —0-0013 
8 13 687 +0:0071 +0-0001 
9 14-023 | +0:0075 —0-0006 
10 14-108 +0:0096 —0:0027 
| 11 14-171 | +0:0074. —0-0006 
12 14-184 +0:0075 —0:0007 
| 13 14590 + 0:0067 —0-0008 
14. 15:132 | +0:0076 —0:0017 
15 15°194 + 0:0065 —0:0006 
16 15°538 +0:0052 +0-0004 
17 15-981 +0:0057 —0:0005 
18 16:018 +0:0035 +0-0017 
| 19 16534 | +0:0037 +0-0010 
| 20 17-226 | +0:0062 —0-0021 
| 21 17:322 +.0:0037 +.0:0030 
99 17-964 | +0:0035 —0-0001 
93 17:997 | —0-0005 +0:0039 
24 18-032 +0:0026 +0:0008 | 
| 25 18°593 +0:0032 —0-:0003 | 
26 18-999 +0:0026 —0:0001 || 
27 19°107 | +.0:0023 +0:0001 | 
28 19-464. +0:0015 + 00006 | 
29 19:997 | +0:0041 —0-0025 | 
30 20-011 | +0:0006 +0:0010 
31 20-055 | +.0:0021 —0-0005 
32 20-545 | + 0:0006 | +0:0005 
33 21-065 | -+0.0028 —0:0021 
3 21-103 +0:0005 | +0:0001 
35 21-485 | +.0:0006 —0:0003 
36 21:501 +0:0008 | —0-0005 | 
| 37 92-054 +.0:0004. | —0-0006 | 
| 38 29-145 —0-0036 +0:0033 
| 39 99-451 —0-0010 +.0:0004 

40 22-831 | —0-0011 +0:0002 

In the comparison of the calorimetric and standard thermometers, the two were 
always treated exactly in the same manner, and exposed simultaneously to the same 
temperatures ; hence we may assume that their zeros varied equally, and, as the zero 
of the standard was assumed that corresponding to the steady state of the thermo- 
meter after it has been exposed for a sufficiently long time to the temperature of 
comparison, the correction found for the Baudin applies to the ultimate reading of 
that thermometer at any temperature. As it has been shown that we must in our 
experiments take the zero to be halfway between its initial and final positions, the 
