Table V.
Rate of Sidereal Standard Clock in 1891.
323
Rate at
Period.
Rate.
Temp.
Period.
Rate.
70°
Temp.
Rate at 70°
B
O
S
▸
January,
1-11
-0.20
65.5
-0.48
July,
.10-20
-1.94
$1.9
.11-21
-0.08
64.8
-0,40
20-30
1.93
82.1
*
-- 1.19 -1.16
71
.21-31
"
+0.01
65.6
-0.26
...30-9
-1.96
81.7
- 1.22
11
.31-10
+0.03
64.9
-0.29
??
August,
9-19
-1.88
82.5
- 1.09
February,
10-20
+0.01
65.1
-0.29
.19-29
- 1.87
83.9
- 1.00
20- 2
+0.01
67.3
-0.16
29- 8
-1.66
88.4
-0.82
"
March,
2-12
0.00
65.8
-0.26
Sept.,
8-18
- 1.59
82.6
-0.79
12-22
0.00
63.6
-0.27
.18-28
- 1.50
82.0
-0.71
27
""
>>
...22. 'I
-0.06
65.8
-0.32
.28- 8
- 1.48
81.7
-0.74
77
April,
1-11
-0.17
66.3
-0.40
October,
8-18
- 1.73
82.1
-0.96
.11-21
-0.40
69.7
-0.42
.18-28
- 1.84
81.3
- 1.13
..21- 1
-0.64
70.0
-0.64
.28-7
- 1.73
78.4
- 1.20.
19
May,
1-11
-0.72
73.8
-0.48 Nov.,
7-17
clock cleaned.
..11-21
- 1.09
76.7
-0.67
.17-27
+0.41
69.7
+0.39
*
22
21-31
-1.10
79.9
-0.48
27-7
+0.85
66.6
+0.64
37
ور
...31-10
- 1.28
81.6
-0.55 Dec.,
7-17 +0.90
67.7
+0.75
"
June,
.10-20
— 1.42
79.4
-0.88
31
>>
20-30 .30-10
-1.59
80.7
-0.92
53
17-27 .27- 6 +1.24
+1.13
66.4
+0.90
66.0
+0.99
- 1.79
81.7
- 1.05
17. As stated in the time-ball notice published in the Government Gazette on the 10th January, 1885, the time-ball was not dropped on Sundays and Government Holidays, but since November last, we have begun to do so also on Sundays. It is to be regretted that the ball was not dropped either so regularly or accurately as heretofore and that this was due to lack of care and skill on behalf of the assistants, who attended to it. While Mr. F. G. FIGG, assisted in the Time-Service the probable error did not amount to more than Os.15.-From February 28th till March 3rd inclusive the ball was not dropped as the assistant did not attend to the work. On June 29th and July 1st, the ball failed to drop owing to the piston not resting on the lock. From July 4th till the 8th inclusive the ball was not hoisted as the covered wires in the electro-magnets had been fused in a great thunderstorm (although out of circuit). On the 1st August, the ball failed owing to a corroded wire in the reversing galvano- meter. From the 17th till the 19th August, the ball was not dropped owing to repairs to the crank, which broke on the 17th when the assistant allowed the pawl to slip. On the 20th August, the assistant did not attend. On the 24th and 25th August, the crank was away for alterations and the ball could not be hoisted. On the 28th August, the ball was not hoisted as the current failed on trial. On the 2nd September, the assistant did not attend, and on the 9th, the ball failed owing to the discharge wire being broken.
Table VI. Errors of Time-Ball in 1891.
—means too late.
+means too early.
Date.
Jan.
Feb. March. April,
April. May. June. July. Aug. Sept.
Oct. Nov.
Dec.
1,
+0.6
2,
3,
•
-0.7
0.2
6,
-0.3
33333
0.1
+0.7
0.1
+0.9
0.1 +0.4 -0.3 +0.3 +0.4
-0.3
0.1
-0.2
0.1
0.1
0.1
–0.5
0.1
0.1
-0.2
-0.2
0.1
0.1
0.1
0.1 +1.0
-0.5 +0.5
0.2
-0.8
0.1
0.1
0,1
0.1 +0.7
0.1
0.1
-0.2
0.2
-0.2
0.1
0.1
7,
-0.4
0.1
0.1 +1.4 +0.2
+1.2 +0.2 +0.9
0.1
-0.3
.0.2
-0.4.
0.1
-0.3
-0.2
.0.2
-0.3
8;
0.1
+1.6 +0.3 +1.4
+0.2
0.1
+0.5
0.2 +0.2
9;
0:1
0,1
.0.1 +0.4
+1.7
+0.2
+0:4
-0.3 +0.3
10,
0.1
0.1
0.1
0.1
+1.9
0.1
+0.2 +0.2
+0.5
0.1 +0.2
11,
0.1
0.1
0.1
+1.0 +0.7
0.1
0.1 +0.3
-0.3 +0.2
12,0
0.1
0.1
0:1
+1.4
0.1
0.1
+0.1 +0,3
-0.7 -0.3
13,
0.1
0,1
0.1 +0.4
+0.9
+0.3
0.1
0.1
0.1
0.1
+0.2
14,
0.1
0.1
0.1 +0.6
0.1
+0.7
0.1
0.1
0.1
15,
-0.2
+0.7
0.1
+0.4
0.1
0.1
0.1
0.1
16,
-0.2
0.J
17,
-0.2
0.1
18,
0.1
19,
-0.4
+0.2
20,
21.
-0.5 -0.6
+0.2
+0.2
22,
23,
+0,2
24,
+0.2
25,
+0:2
ឥតគ
26,
0.1 +0.2
333888:8888
+0.9
0.1
0.1
-0.2
0.1
0.1
0.1
0.1
+1.0
0.1
0.1
0.1
+0.2
0.1
0,1
+1.2
0.1
0.1
0.1
0.1
+1.5
+1.8
+2.1
+2.4
:88888
:
+0.2
0.1
0.1
0.1
0.1
0.1.' -0.2
0.1
0.1
0.1
0.1 -0.2
0.1
0.2
0.1 -0.3
0.1
0.1
-0:3
0.1
0.1
-0.2 -0.2
+0.3
0.1
-0.2
0.1 +0,2
0.1
-0.2
+0.4
0.1
-0.2
0.1
+2.7
+0.3
0.1
+0.2
0.1
-0.3
-0.2
0.1
+3.0
+0.3
0.1
+0.4
1
0.7
0.1
0.1
0.1
-0.2
+0.5
0.1
1.0
27,
-0.2 +0.2
+1.4
0.1
+0.5
0.1
-0.4
0.1
1.4
0.1
28,
-0.2
+0.3
0.1
0.1
0.1
0.1
29,
0.3
+0.4
0.1
0.1
-0.7
-0.2
30,
0.3
+0.6
+0.2
0.1
0.1
0.1
31,
0.1
+0.5
0.1
1.0
Reek
-1.8
0.1
0.1
0.1
0.1
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