74 
MEA8UREMENT OF HIGH TEMPERATURES. 
Table 5.— 
Constancy of temper aturi 
time 
in the later form of sine 
series — Continued . 
doiling-point apparatus 
Date. 
Time. 
h. 
No. of 
thermo- 
couple. 
e 20 . 
r. s 
Tzn. 
Remarks. 
Apr. 18, 1884 
h. m. 
3 00 
0.87 
18 
10020 
915 
990 
10 
1.03 
18 
10110 
920 
995 
Do. 
20 
1.20 
18 
10130 
922 
998 
30 
1.37 
18 
10080 
920 
995 
42 
1.57 
18 
10320 
935 
1013 
Retort begins to leak. 
4 00 
1.87 
18 
10480 
945 
1025 
10 
2.03 
18 
10510 
948 
1026 
20 
2.20 
18 
10500 
946 
1026 
30 
2.37 
18 
10390 
939 
1019 
42 
2.57 
18 
9910 
908 
980 
3 33 
0.00 
18 
7571 
740 
787 
Charge 50 pounds. 
50 
0.28 
18 
7990 
772 
823 
Furnace fired. 
4 00 
0.45 
18 
8230 
790 
844 
Do. 
10 
20 
30 
0.62 
0.78 
0.95 
18 
18 
18 
8570 
8870 
8930 
813 
835 
839 
872 
897 
900 
Do. 
Approaching ebullition. 
Furnace fired. 
43 
1.17 
18 
9100 
851 
914 
Do. 
Apr. 24, 1884 
50 
5 00 
1.28 
1.45 
18 
18 
9120 
9130 
852 
852 
915 
916 
Ebullition. 
Furnace fired. 
10 
22 
33 
1.62 
1.82 
2.00 
18 
18 
18 
9130 
853 
916 
Do. 
Do. 
9140 
854 
917 
Do. 
50 
55 
6 10 
20 
31 
45 
2.28 
2.37 
2.62 
2.78 
2.97 
. 3.20 
18 
18 
18 
18 
18 
18 
Do. 
9130 
852 
916 
Do. 
9180 
856 
921 
Do. 
Do. 
9190 
857 
922 
Superheating ; F. fired. 
55 
7 05 
3.37 
3.53 
18 
18 
9240 
861 
925 
25 pounds distilled. 
Apr. 30, 1884 
1 53 
0.00 
18 
8530 
812 
870 
Charge 50 pounds. 
2 15 
0.37 
18 
8970 
842 
905 
2G 
0. 55 
18 
9080 
850 
912 
Ebullition. 
45 
0.87 
18 
9f40 
854 
918 
3 15 
1.37 
18 
9120 
853 
915 
35 
1.70 
18 
9160 
856 
920 
57 
2.07 
18 
9190 
858 
922 
4 15 
2.37 
18 
9220 
859 
924 
36 
2.72 
18 
9*280 
864 
930 
5 00 
3.12 
18 
9340 
868 
934 
20 
35 
3.45 
3.70 
18 
18 
9270 
9280 
863 
864 
930 
930 
28 pounds distilled. 
May 12, 1881 
3 00 
0.00 
18 
7940 
768 
799 
Charge large. 
20 
0.33 
18 
8520 
811 
868 
30 
0.50 
18 
8760 
828 
887 
38 
0.63 
18 
8880 
837 
896 
40 
0.67 
18 
8900 
838 
900 
45 
50 
0.75 
0.83 
18 
18 
8950 
8960 
842 
843 
902 
904 
Approaching ebullition. 
55 
0.92 
18 
8960 
842 
904 
4 10 
1.17 
18 
8960 
842 
904 
30 
5 00 
1.50 
2.00 
18 
18 
842 
844 
904 
906 
8980 
15 
2.25 
18 
9000 
845 
907 
33 
2.56 
18 
9020 
846 
908 
(728) 
