921 
derived are simply equal to the coefficients of each unknown in its 
own normal equation. 
TABLE II. 
re RE Ens Eens = a 
w a b c | d | 
First approximation 1.245 1.881 0.2946 0.2348 0.18046 | 
Second approximation 1.249 1.8868 | 0.2852 | 0.2388 0.18046 
H | 
Final solution 1.24874 | 1.884918 | 0.289523 | 0.236524 | 0.180648 
Weights S207, . eiitases 4.94 | 7.53 55.6 | 
| | 
| Mean error +.00018 | +.000173 | + .000450 | + .000364 | +.000134 | 
m. e. for formula i 14 21 | 26 20 
| | 
6. Result. Finally Table JI shows the comparison of the resistan- 
ces computed from the definitive constants, with the experimental 
values. It will be seen from the column for W— WW, that the ob. 
servations are represented a little better still. The sum of the squares 
of the deviations shows decrease from 87 to 72. In the last 
column the quantities W— WW, have been transformed into the 
equivalent differences of temperature. Now the uncertainty of a 
determination with the gas-thermometer is stated to be 0.°02, from 
a 
TABLE IV. 
| | 
| | 
fe W tw | aw |) T W sw | AW 
| n | = 8 | he | 
| | | | 
10 | 1.2966 | | || 120 | 51.3535 | | —0.0439 
0.5806 | 5.6938 | 
20 | 1.8772 | +1.2563 || 130 | 57.0473 411 | 
1.8369 — 5.6527 
30 | 3.7141 | 1.4868 || 140 | 62.7000 373 
3.3237 | | | 5.6154 
40 | 7.0378 | 1.1854 || 150-| 68.3154 | | 329 
4.5091 | | | 5.5825 | 
50 | 11.5469 | 0.7336 || 160 | 73.8979 289 | 
| 5.2427 | 5.5536 
60 | 16.7896 | 3180 || 170 | 79.4515 | 254 | 
5.6207 | | 5.5282 | | 
70 | 22.4103 1608 | 180 | 84.9797 | 219 | 
5.7815 | | 5.5063 | 
80 | 28.1918 | + 454 || 190 | 90.4860 | 193 
5.8269 | | | 5.4870 | 
90 | 34.0187 | — 109 || 200 | 95.9730 | 168 
5.8160 | | | 5.4702 | 
100 | 39.8347 349 || 210 | 101.4432 |. 150 
5.7811 | | | 5.4552 
| 110 | 45.6158 | 434 || 220 | 106.8984 | | — 0.0129 
5.7371 | 5.4423 | 
120 | 51.3535 | —0.0439 || 230 | 112.3407 | 
| | | 
