436 SUPPLEMENT TO THE HONGKONG GOVT GAZETTE OF 28TH APR., 1888.
9. The number of transits observed during the past year was 313, and the inclination of the axis was determined 132 times. All the chronometers were cleaned and oiled and their rates satisfactorily ad-. justed in the course of the year by a local firm of jewellers. The sidereal standard clock was stopped on the 7th October, 1887, and its rate corrected. The mean daily rates during ten-day periods are exhibited in the following table, where means gaining, and losing rate :—
TABLE I.
Rate of Sidercal Standard Clock in 1887.
Period.
Rate.
Temp.
Bar.
Period.
Rate.
Temp.
Bar.
December 31-10,.
- 2.$12
62.93
30,ins02
January
10-20,
-2.23
63. 3
29. 98
June July
29- 9,.
-8.73
82.°1
29.ins70
9-19,.
-3.84'
82.8
29. 62
"
20-30,
-2. 20
61.6
29. 92
19-29,
- 3.97
81. 4
29. 47
30- 9,
-2. 18
59. 4
29. 95
29-8,.
-3.96
83.3
29. 63
February
9-19,
-2.05
60.4
30. 15
August
8-18,
-8.91
81.8
29. 73
**
19- 1,.
-2.28
62.3
29. 94
18-28,
3.92
79.9
29. 70
March
1-11,.
-2.32
61.3
29. 97
28-
4.04
81.8
29. 74
""
11-21,.
-2.36
61. 3
29. 95
September 7-17,
4. 23
83. 1
29. 54
29
21-31,.
-2.34
62. 7
29. 94
12
17-27,.
4. 25
82.3
29. 69
31-10,..
-2.48
67.0
29. 94
55
27-7,.
4.12
79.8
29. 76·
April
10-20.
-2.91
73. 1
29. 77
October
7-17,.
+0.51
78.5
29. 91
20-30,
-2.78
69. 7
29. 89
""
17-27,.
+0.60
75.9
29. 93
ני
30-10,
-2.93
72.
29. 79
27- 6,.
+0.81
73. I
29. 99
"
May
10-20,
-3. 11
74. 6
29. 79
November 6-16,
+0.79
71.7
29. 97
20-30,
-3.33
78.0
29. 75
16-26,
+1.00
69.3
30. 06
"
"
30- 9,
-3.49
79.8
29. 69
༥
26 6,
+1.01
68. 1
30. 01
June
9-19, 19-29,
-3.72
82.7
-3.78
83. 2
29. 63 29. 68
December 6-16,. 16-26,.
+1.14
67.3
30. 04
+1.17
65. 1
30. 05
29
10. As stated in the time-ball notice published in the Government Gazette on the 10th January, 1885, the ball is not dropped on Sundays or Government Holidays.
or Government Holidays. The ball was dropped .every working day in the past year, but failed to drop at 1 p. on May 27th, June 25th and October 27th, the failure being caused the first time by a broken covered wire in the polarized relay, the second time by the switch not having been properly turned, and the third time by the battery having become weak in comparison to the elasticity of the spring on the lock. On every occasion the defect was remedied and the ball dropped allright at 2 p.
TABLE II.
Errors of Time-Ball in 1887. means too late.
+ means too early.
Date.
Jan.
Feb.
March. April. May.
June. July. Aug. Sept.
Νον. Oct.
ec.
1.
+0.83
0.81
+0.6
0.'1
0,$1
0.91
0.1
0.1 +0.$2
+0.3
0.1
0.1
0.21
0. 1
0.1
0."1
0.1
:
-0.2
+0.3
0. 1
+0.4
-0.2
0.1
0. 1
0.1
0. 1
0. 1
-0.5
+0.3
0.
+0.
-0.3
0.1
+0.2
0.1
0.1
0.1
0.1
0.1
+0.4
-0.3
0.1
0. I
0.1
0.1
0.1
0.1
0. 1
0.1
6,
0.
0.1
+0.2
0.1
0.1
0.1
-0.2
0.1
0. I
+0.
-0.4
0.1
0.1
+0.3
0.2
...
0.1
-0.3
0.1
-0.3
-0.2
+0.9
-0.
0.1
-0.2
0.1
+0.3
0.1
+0.2
-0.4
9,
0.1
0. 1
+0.2
+0.5
+0.3
0.1
0. 1
+0.5
0.1
10,
-0.4
-0.3
0.1
0. 1
+0.5
0.1
+0.2
0. I
+0.3
11,
+0.3
-0.5
0.1
+0.2
+0.7
+0.3
0.1
0.1
-0.3
12,
+0.6
www..com
-0.8
0.1
+0.7
+0.3
0.
-0.2
+0.6
0. 1
-0.3
0.1
13,
+0.9
+0.9
+0.5
0.1
+0.7
0.1
-0.2
14,
0.1
0. 1.
0.1
+1.2
0.
0.
0.1
+0.2
0.1
-0.2
15,
0.1
0.1
0.
+0.
0.1
0.1
0. 1
0.
0.1
0.1
-0.3
16,
-0.2
0.1
0. I
0.3
+0.2
0.1
0.
0.1
-0. 3
17,
0.
0.1
0.1
0.1
-0.2
0.
-0.2
0. I
0.1
18,
0.
0.1
+0.2
+0.5
0.1
+0.
+0.3
-0.2
0.
0.
19,
0. +0.2
+0.
0.
0. I'
+0.4
-0.3
0.1
0.1
20,
0.
0.1
0.1
+0.5
0.1
0.1
-0.
0.1
21,
+0.4
0.1
0.
+0.6
0.1
0.
0. I
22.
0.1
+0.7
0.1
-0.4
0.1
+0.2
0.
0.1
0.
0.
0. 1
28.
+1.0
-0.2
-0.5
0.
0.1
0.1
0. 1
0.1
0.1
0. I
24,
0.1
-0.3
0.1
0.1
0.1
+0.2
0.1
25,
+0.2
+0.3
-0.7
-0.2
0.1
+0.2
0. I
0.
0.1
*26,
+0.2
0.1
0.1
-0.
0.1
+0.2
+0.4
0.1
0.1
27,
+0.2
0. I
0.1
0. 1
0.1 +0.2
+0.5
0.
28,
+0.2
0.1
29,
+0.3
+0.3 0.1
-0.2
+0.
N
0.
0.1
0.1
+0.2
0.
0.1
0.1
-0.3
-0.) -0.3
+0.4
-0.:
0.1
-0.3
30,
+0.2
0.1
0.
+0.2 0.1
-0.4
+0.2
-0.4
31,
+0.3
+0.4
40 8
0.1
0. I
-0.5