babus.] CALIBRATION OF ELECTRICAL PYROMETERS. Ill 
Table 16.— Calibration of thermo-couples Xos. 17, 18, 22, 35, 36— Continued. 
No 
t. 
T. 
e ob- 
served. 
e calcu- 
lated. 
5 c. 
too— e. 
e-2o. 
a ami b. 
Time. 
17 
20.0 
21.4 
22.1 
°C. 
448 
448 
448 
Micro- 
volts. 
4062 
4050 
4049 
Micro- 
volts. 
. (4502) 
Micro- 
volts. 
(+2) 
Micro- 
volts. 
Micro- 
volts. 
4058 
4037 
4065 
Microvolts. 
(7. 66) 
(0. 00390) 
h. m. 
71 13 
12 4 
33 
Mean 
21.2 
448 
4054 
3909 
( + 145) 
5 
4059 
17 
20.5 
21.0 
357 
357 
3065 
3068 
(3077) 
(-10) 
3065 
3072 
3 1 
4 37 
Mean 
20.8 
357 
3067 
3012 
+ 55 
2 
3069 
17 
18.5 
19.3 
18.4 
186.5 
186.8 
186.4 
1438 
1433 
1435 
(1420) 
(+14) 
1426 
1428 
1425 
10 14 
51 
1 45 
Mean 
18.7 
18.9 
18.8 
186.6 
1435 
1433 
+ 2 
—10 
1425 
17 
99.9 
99.9 
649.2 
650.6 
(659) 
(-9) 
640.6 
641.3 
12 10 
34 

18.8 
20T5 
20.8 
21.6 
22.1 
99.9 
649.9 
676 
-26 
—9.3 
640.6 
18 . 
930 
930 
930 
930 
9122 
9160 
9122 
9122 
9162 
9131 
9138 
7.973 
0. 002352 
2 35 
3 15 
43 
4 18 
9280 
21.2 
930 
9133 
-147 
5 
9138 
18 
20.0 
21.5 
22.2 
448 
448 
448 
3998 
4004 
4000 
(4005) 
(-4) 
3994 
4012 
4013 
11 30 
12 10 
38 
20.9 
448 
4001 
3883 
+118 
3 
40U4 
18 
20.6 
21.0 
357 
357 
3035 
3037 
(3041) 
(-5) 
3036 
3041 
(7. 64) 
(0. 00367) 
3 6 
4 42 
20.8 
~~ 18.4 
19.3 
357 
3036 
2986 
+50 
(+10) 
2 
3038 
18 
186.5 
186.8 
1422 
1415 
(1409) 
14)0 
1410 
10 10 
55 
18.8 
186.7 
1419 
1420 
-1 
-9 
1410 
18 
18.9 
18.7 
99.9 
99.9 
647.2 
649.2 
(655) 
(-7) 
638.6 
639.1 
12 13 
38 
18.8 
99.9 
648. 2 
669 
-21 
—9.3 
638.9 
22 
20.6 
20.8 
21.6 
22.2 
930 
930 
930 
930 
9198 
9202 
9185 
9181 
9199 
9204 
9194 
9194 
2 40 
3 17 
48 
4 22 
21.3 
930 
9191 
9347 
-157 
6 
9197 
22 
19.8 
21.0 
21.2 
21.9 
22.6 
22.8 
448 
448 
448 
448 
448 
448 
4030 
' 4026 
4026 
4020 
4019 
4011 
(4025) 
(-3) 
4025 
4030 
4031 
4031 
4035 
4029 
7.993 
0. 002409 
11 27 
54 
58 
12 23 
53 
1 15 
Mean 
21,6 
448 
4022 
3895 
+127 
8.6 
4031 
' 
- - — 
... 
_ 
(705) 
