A PENDULUM FOR THE REDUCTION TO A VACUUM 
489 
Table II. — Continued. 
Corrections for 
N' and N". 
Pendulum. 
No. 
Total 
No. of 
Mean 
Interval. 
Coincid. 
Interval. 
Arc. 
Therm. 
Rate. 
See page 407. 
h m s 
49 
5 20 53,0 
29 
663-897 
+ •406 
—5-702 
-•230 
86654-756 
50 
6 26 21,0 
36 
643-916 
•663 
5-830 
•230 
86662-961 
• 51 
7 30 1,0 
42 
642-881 
•614 
6-178 
•220 
86663-005 
No. 5. Lead 
52 
4 24 46,0 
24 
661-916 
•451 
6-460 
•220 
86654-831 
Sphere. 
53 
7 43 10,5 
42 
661-679 
•279 
6-490 
•220 
86654-723 
54 
8 23 4,5 
47 
642-224 
•618 
6-504 
•220 
86662-959 
55 
7 51 29,5 
44 
642-943 
•550 
6-305 
•230 
86662-779 
56 
5 31 4,0 
30 
662-133 
•375 
6-572 
•240 
86654-538 
No. 9- 
Ivory Sphere 
57 
1 13 18,5 
7 
628-357 
+ •296 
—5-816 
+ •200 
86669-683 
58 
2 38 14,5 
18 
527-472 
•440 
5-591 
•200 
86722-649 
59 
2 56 3,0 
20 
528-150 
•354 
5-132 
•200 
86722-602 
on Cylinder. 
60 
1 13 20,0 
7 
628-571 
•306 
4-567 
•200 
86671-208 
No. 8. 
61 
3 13 45,5 
24 
484-396 
+ •401 
—3-965 
+ •230 
86753-400 
62 
5 15 56,5 
40 
473-912 
•632 
3-594 
•230 
86761-893 
Lead Sphere 
63 
6 50 3,5 
52 
473-144 
•608 
3-454 
•230 
86762-601 
on Cylinder. 
64 
3 12 56,5 
24 
482-354 
•408 
4-054 
•200 
86754-797 
No. 10. 
Brass Cylinder, 
with iron wire. 
65 
4 7 38,0 
23 
646000 
+•507 
—4-336 
+ •600 
86664-263 
66 
8 56 58,5 
52 
619-587 
•688 
3-995 
•600 
86676-189 
67 
8 15 37,0 
48 
619-521 
•660 
3876 
•570 
86676-280 
68 
3 25 1,5 
19 
647-447 
•574 
3-905 
•570 
86664-134 
No. 11. 
Brass Cylinder, 
with Brass Rod. 
69 
2 46 37,0 
13 
769000 
+•419 
—3-189 
+•500 
86622-450 
70 
3 51 56,0 
19 
732-421 
•655 
2-858 
•500 
86634-217 
71 
4 4 35,5 
20 
733-775 
•634 
2-556 
•500 
86634-058 
72 
2 21 31,2 
11 
771-927 
•451 
2-522 
•500 
86622-289 
No. 12. 
Brass Cylinder, 
with Brass Rod. 
73 
1 59 48,0 
9 
798-666 
+ •553 
—3-793 
+•520 
86613-640 
74 
4 37 24,5 
22 
756-568 
•740 
3-707 
•520 
86625-933 
75 
4 25 25,0 
21 
758-333 
•728 
3-439 
•520 
86625-669 
76 
1 46 46,0 
8 
800-750 
•632 
3-384 
•520 
86613-568 
No. 13. 
Brass Cylinder, 
with Brass Rod. 
77 
4 5 0,0 
17 
864-706 
+•291 
—4051 
+ •600 
86596-677 
78 
10 14 58,5 
45 
819-967 
•462 
3-289 
•600 
86608-533 
79 
8 12 27,0 
36 
820-750 
•524 
3-116 
•600 
86608-548 
80 
2 24 55,5 
10 
869-550 
•624 
3-254 
•600 
86596-694 
No. 18. Hollow 
Brass Cylinder, 
both ends closed. 
81 
1 17 6,0 
8 
578-250 
+ •574 
—5-012 
+ •490 
86694-885 
82 
4 7 20,5 
29 
511-741 
•655 
5-028 
•490 
86733-788 
83 
3 58 22,0 
28 
510-786 
•503 
5-459 
•450 
86733-797 
84 
1 55 37,0 
12 
578-083 
•462 
5-331 
•450 
86694-500 
No. 15. Hollow 
Brass Cylinder, 
both ends open. 
85 
1 32 52,0 
12 
464-333 
+ •442 
-6029 
+ •580 
86767-140 
86 
87 
88 
3 8 39,0 
3 8 54,5 
1 25 11,0 
27 
27 
11 
419-222 
419-796 
464-636 
•584 
•714 
•410 
6014 
5-845 
5-696 
•580 
•580 
•580 
86807-342 
86807-078 
86767-199 
No. 16. Hollow 
89 
1 58 39,0 
11 
647-182 
+ •692 
—5-058 
+ •660 
86663-298 
Brass Cylinder, 
90 
4 6 45,5 
26 
569-442 
•578 
4-493 
•660 
86700-200 
top open, bottom 
91 
3 47 50,0 
24 
569-583 
•641 
4-425 
•660 
86700-256 
closed. 
92 
1 5S 48,5 
11 
648-045 
•416 
4-479 
•660 
86663-246 
No. 17- Hollow 
93 
1 40 36,5 
14 
43M78 
+ •402 
—5-102 
+ •430 
86796-493 
Brass Cylinder, 
94 
3 2 57,0 
28 
392-036 
•746 
4-930 
•430 
86837-026 
top closed, bottom 
95 
3 29 34,5 
32 
392953 
•694 
4-434 
•540 
86836-540 
open. 
96 
1 33 33,5 
13 
431-808 
•565 
4-202 
•540 
86797 081 
