>ARU8 -i porcelain air thermometry. 205 
Table 52.— Comparison of air thermometer and thermo-couple.— Cont'd. 
ho = 14.66™'. Bulb No. 4. 
. Thermo-couple No. :J7. 
H 
T 
Time. 
t 
620 
Time. 
cm. 
°C. 
hours. 
°C. 
microvolts. 
hours. 
58.77 
850 
4.35 
28.3 
8254 
4.12 
59. 55 
866 
4.43 
28.8 
10260 
4.33 
65.67 
985 
4.65 
29.0 
10357 
4.37 
67.88 
1031 
4.72 
29.3 
10459 
4.43 
69.95 
1072 
4.77 
29.3 
12622 
4.68 
29.3 
13472 
4.75 
29.3 
13902 
4.78 
28.92 
271 
1.43 
27.8 
3596 
1.45 
31.89 
327 
1.49 
27.8 
3925 
1.50 
33.58 
360 
1.53 
27.8 
4127 
1.53 
35.38 
394 
1.59 
27.8 
4457 
1.60 
37.10 
426 
1.68 
27.8 
4723 
1.70 
38.19 
448 
1.78 
27.8 
4847 
1.78 
38.77 
459 
1.87 
28.8 
5100 
2.00 
39.13 
466 
1.95 
28.8 
5100 
2.03 
39.45 
472 
2.03 
28.8 
6144 
2.17 
41.00 
502 
2.14 
28.8 
6507 
2.20 
45.46 
588 
2.27 
28.8 
7045 
2.30 
46. 73 
613 
2.33 
29.3 
7281 
2.37 
47.87 
635 
2.40 
29.3 
7455 
2.42 
48.80 
653 
2.48 
30.3 
8270 
2.75 
50. 18 
680 
2.58 
30.8 
8153 
2.88 
51.32 
703 
2.69 
30.8 
8872 
3.00 
51.29 
702 
2.85 
31.3 
9651 
3.12 
. 52. 59 
727 
2.99 
31.3 
9910 
3.17 
54.81 
771 
3.08 
31.8 
10375 
3.33 
56.69 
808 
3.16 
32.6 
10289 
3.50 
58.56 
845 
3.28 
33.0 
13021 
3.73 
58.95 
852 
3.49 
33.3 
13423 
3.83 
65.49 
982 
3.69 
33.8 
13427 
3.92 
68.40 
1040 
3.79 
33.8 
14297 
4.00 
68.86 
1049 
3.87 
33.8 
14677 
4.05 
69.87 
1070 
3.98 
34.3 
15191 
4.12 
72.03 
1112 
4.05 
34.3 
15511 
4.17 
73.72 
1146 
4.10 
34.3 
15732 
4.22 
75.68 
1186 
4.17 
34.4 
15852 
4.30 
76.85 
1209 
4.22 
34.6 
15963 
4.42 
77.69 
1227 
4.26 
78.62 
1245 
4.33 
79.11 
1255 
4.39 
79.47 
1262 
4.44 
In spite of the care taken with these observations the results do not 
low the uniformity and accuracy expected; this appears from a graphic 
■[presentation of the following correlative values, Table 53, taken from 
lable 52. 
(859) 
