PORCELAIN AIR THERMOMETRY. 
207 
"are collected in Table 55, and obtained as before by graphic interpo- 
ition. The results are inserted here because of the non-re-entrant form 
f bnlb employed. 
Table 54.— Comparison of air thermometer and thermo-couple. 
In glazed 
bulb Xo 
9 S va = 
282^ 
20" 
Therm o-coupl6 No. 37, 
r 1 
Ti 
2?o 
T 
Time. 
hours. 
^0 
e 20 
Time. 
Gas- 
cock. 
cc. 
"C. 
cm. 
°C. 
°C. 
microvolt. 
hours. 
147. 
24.3 
76.46 
333 
1.12 
22. 4 
3039 
1.05 
2 
149.7 
24.3 
76.46 
345 
1.17 
22. 6 
3534 
1. 22 
2 
154.3 
24.3 
76.46 
366 
1.28 
22.8 
3743 
1.34 
2 
157.0 
24.6 
76.46 
379 
1.38 
23.1 
3906 
1.48 
o 
160.4 
24. 8 
76.46 
396 
1.55 
23.6 
4110 
1.78 
2 
163. 1 
25. 5 
76.46 
409 
1.88 
23.7 
4104 
1.92 
o 
163.4 
192.5 
25.4 
,6.1 
76.46 
76.46 
411 
621 
1.98 
2.28 
24.8 
7160 
2.33 
3 
196.0 
26.2 
76. 46 
655 
2.37 
24.9 
7455 
2.42 
3 
201.9 
28.6 
76.46 
716 
2.78 
25.4 
7926 
2.07 
3 
202.5 
26.7 
76.46 
722 
2.84 
25.8 
8076 
2.81 
3 
211.7 
26.9 
76.46 
841 
3.12 
26.6 
10270 
3.17 
3.5 
216.0 
27.0 
76.46 
907 
3.33 
26.8 
10621 
3.30 
3.5 
216.6 
26.9 
76.46 
919 
3.47 
27.0 
10748 
3.42 
3.5 
217.4 
27.1 
76.46 
931 
3 67 
27.4 
10940 
3.58 
3.5 
219. 
26.9 
7646 
960 
3.82 
28.1 
11602 
3.87 
3.7 
220.7 
26.8 
76. 46 
994 
3.J8 
28.3 
11793 
3.95 
3.7 
222. 2 
27.1 
76. 46 
1019 
4.13 
28.4 
12052 
4. 05 
3.7 
223. 0, 
27. 
76. 46 
1036 
4. 25 
28.6 
12364 
4.20 
3.7 
223. 2 
26.9 
76. 46 
1041 
4.40 
28.6 
12170 
4.37 
3.7 
220. 
26.5 
76. 46 
985 
4.58 
29.1 
10480 
4.65 
1 
215. 
26.0 
76.46 
903 
4.68 
29.3 
9563 
4.73 
210. 
25.8 
76.40 
828 
4.78 
29.3 
8807 
4.81 
205. 3 
25. 5 
76. 46 
767 
4.87 
29.3 
8155 
4.88 
200.2 
25. 3 
76. 40 
707 
4.97 
29. 4 
7.''3C 
5. 00 
189. 8 
25.0 
76.46 
602 
5.20 
29.1 
6404 
5. 18 
180.8 
25.2 
76. 53 
528 
5. 42 
29. 
5649 
5. 33 
5a 
170.0 
25.2 
76. 53 
452 
5.68 
28.8 
5009 
5. :o 
1 T. 
160. 2 
25. 1 
76. 53 
396 
5.93 
28.7 
4275 
5. 73 
5 
154.8 
25.0 
76. 53 
369 
6. 0.5 
28.0 
3835 
5.88 
145.3 
24.8 
76.53 
325 
6.30 
28.6 
3589 
5.98 
140.4 
24,8 
76.53 
3(17 
6.42 
28.6 
334 I 
6.08 
129. 8 
24.0 
76.53 
267 
6.68 
28.4 
2979 
6.27 
124.9 
23. 7 
76.53 
251 
6.80 
28. 2 
27.6 
2759 
2325 
6. 38 
6. 65 
) 
(861) 
