222 
MEASUREMENT OF HIGH TEMPERATURES 
[HULL. 51 i 
Table 63. — Comparison of air thermometer and thermo-couple. Series II. Method ii 
constant pressure. 
Re-entrant bulb No. 2. v 
= 286. t 
= 14°. 7. 
1 
Tkerino- 
couple No. 
37. 
Vi 
Ti 
i'o 
T 
Time. 
No. 
t 
^20 
Time. 
cc. 
°C. 
cm. 
°a 
hours. 
°C. 
microvolt. 
hours. 
223.7 
24.7 
77.14 
1021 
2.18 
37 
22.1 
12654 
2.22 
225.4 
25.2 
77.14 
1048 
2.30 
37 
22.6 
13095 
2.38 
227.0 
25.6 
77.14 
1075 
2.47 
37 
23.6 
13341 
2.53 
227.5 
25.9 
77.14 
1080 
2.60 
37 
23.8 
13372 
2.63 
224.8 
25.8 
77.14 
1027 
2.77 
37 
24.6 
11592 
2.82 
219.8 
25.7 
77.14 
934 
2.85 
37 
24.8 
10479 
2.92 
214.9 
25.3 
77.14 
858 
2.95 
37 
25.1 
9560 
3.00 
210.1 
25.3 
77.14 
789 
3.04 
37 
25.5 
8793 
3.08 
205.2 
25.3 
77.14 
726 
3.15 
37 
25.8 
7997 
3.18 
200.3 
25.2 
77.14 
671 
3.25 
37 
25.8 
7326 
3.28 
195.0 
25.1 
77.13 
618 
3.38 
37 
26.2 
6662 
3.40 
190.2 
24.8 
77.13 
575 
3.49 
37 
26.4 
6106 
3.52 
185.1 
24.7 
77.13 
534 
3.62 
37 
26.6 
5444 
3.67 
180.4 
24.6 
77.13 
499 
3.73 
37 
26.5 
5067 
3.77 
175.0 
24.4 
77.13 
462 
3. 85 
37 
26.6 
4643 
3.90 
170.0 
23.8 
77.14 
433 
3.97 
Table 64. — Comparison of air thermometer and thermo-couple. Series III. Method 4 
constant pressure. 
Re-entrant bulb No. 2. v { 
= 279. 
<=13 3 . 
Thermo-couple No. 39. 
Vi 
T, 
B 
T 
Time. 
hours. 
t 
e-2o 
Time. 
Gas- 
cock. 
cc. 
°C. 
cm. 
°C. 
°C. 
microvolt. 
hours. 
223. 5 
23.9 
76.62 
989 
2.58 
21.4 
11544 
2.48 
4 
224.9 
23.8 
76.62 
1019 
2.73 
21.7 
12198 
2.66 
4 
225.5 
24.0 
76.62 
1028 
2.83 
22.2 
12509 
2.78 
4 
226.7 
24.1 
76.62 
1051 
3.02 
22.4 
12710 
2.90 
4 
227. 
24.3 
76.62 
1055 
3. 12 
22.8 
12909 
3.07 
4 
224.8 
23.8 
76.60 
1017 
3.27 
24.1 
11567 
3.33 
) 
220.0 
23.6 
76.60 
929 
3.37 
24.1 
10453 
3.42 
214.8 
23.4 
76.60 
846 
3.47 
24.2 
9536 
3.50 
209.8 
23.2 
76.60 
778 
3.56 
24.6 
8769 
3.57 
205.2 
23.0 
76.60 
721 
3.65 
24.8 
7454 
3.75 
SB 
1 o 
200.0 
22.8 
76.60 
664 
3.77 
24.9 
7067 
3.82 
195.2 
22.7 
76.60 
616 
3.87 
25.1 
6443 
3.93 
190.4 
22.6 
76.60 
573 
3.99 
25.2 
5920 
4.05 
184.8 
22.4 
76.60 
527 
4.13 
25.3 
5343 
4.18 
180.4 
22.5 
76.60 
494 
4.23 
25.2 
4977 
4.28 
175.1 
22.5 
76.60 
458 
4.37 
25.1 
4564 
4.41 
170.0 
22.4 
76. GO 
426 
4.48 
25.1 
4214 
4.52 
J 
165.2 
22.4 
70.62 
403 
4.60 
(876) 
