PENDULUM AT THE ROYAL OBSERVATORY, CAPE OF GOOD HOPE. 163 
Observations with the pendulum (Continued). 
1829- 
Attached. 
Therm. 
Barom. 
Thermometers. 
A. | B. 
No. of 
Coin. 
Disapp. 
Re- 
app. 
Time of 
Coincidence. 
Arc. 
inches. 
m 
S 
m 
s 
h 
m 
S 
T 7 / 
72.0 
30.035 
72.4 
73.0 
1 
51 
16 
51 
31 
15 
51 
23.5 
1.12 
Jan. 7 < 
73.5 
30.020 
73.0 
73.6 
21 
36 
20 
36 
34 
17 
36 
27.0 
.62 
/ 
77.5 
29-964 
76.2 
76.8 
1 
34 
22 
34 
36 
21 
34 
29.0 
1.18 
”1 
77-0 
29.919 
74.8 
75.2 
21 
19 
10 
19 
25 
23 
19 
17.5 
.66 
/ 
77.5 
29.919 
75.6 
76.0 
1 
30 
4 
30 
18 
23 
30 
11.0 
1.37 
76.5 
29.900 
74.5 
75.1 
21 
14 
46 
15 
2 
1 
14 
54.0 
•73 
R r 
69.0 
29-952 
69.0 
69.6 
1 
45 
56 
46 
11 
15 
46 
3.5 
1.30 
1 
69.6 
29.951 
70.6 
71.1 
21 
31 
3 
31 
18 
17 
31 
10.5 
•71 
72.0 
29.951 
70.6 
71.2 
1 
36 
41 
36 
56 
17 
36 
48.5 
1.26 
72.5 
29-932 
72.0 
72.6 
21 
21 
45 
21 
58 
19 
21 
51.5 
•69 
f 
72.5 
29-932 
72.0 
72.7 
1 
27 
44 
27 
58 
19 
27 
51.0 
1.23 
”1 
74.0 
29-925 
72.6 
73.4 
21 
12 
43 
12 
58 
21 
12 
50.5 
.66 
74.0 
29.925 
72.3 
73.0 
1 
24 
10 
24 
22 
21 
24 
16.0 
1.49 
”i 
73.0 
29.926 
72.4 
73.1 
21 
8 
59 
9 
15 
23 
9 
7-0 
.83 
73.0 
29-926 
72.3 
72.9 
1 
14 
46 
15 
2 
23 
14 
54.0 
1.19 
73.0 
29.918 
70.9 
71.5 
21 
59 
45 
0 
0 
0 
59 
52.5 
.66 
Mean. . 
73.54 
29.943 
On the morning of the 9th the clock was found stopped, which prevented 
the continuance of this series. 
Observations computed. The clock making on the 7th, 86636.306, and on the 
8th, 86636.215 sidereal vibrations in a mean solar day. 
Number of 
Observations. 
Mean Temp. 
Interval. 
Vib ns in 24 Mean 
Solar Hours. 
Correc. for 
Arc. 
Reduc. to 
62° Fahr. 
Reduced Vib" 3 in 
24 Mean Solar 
Hours at 62° F. 
1 
73?00 
li m s 
1 45 3.5 
86086.539 
+ 1.206 
+ 4.631 
86092.376 
2 
75.75 
1 44 48.5 
86085.228 
1.349 
5.789 
86092.366 
3 
75.30 
1 44 45.5 
86084.746 
1.794 
5.599 
86092.139 
4 
70.08 
1 45 7-0 
86086.756 
1.607 
3.402 
86091.765 
5 
71.60 
1 45 3.0 
86086.408 
1.513 
4.042 
86091-963 
6 
72.67 
1 44 59-5 
86086.058 
1.418 
4.492 
86091.968 
7 
72.70 
1 44 51.0 
86085.359 
2.145 
4.505 
86092.009 
8 
71.90 
1 44 58.5 
86086.015 
+ 1.363 
+ 4.168 
86091.546 
Mean . . 
72.88 
Mean. . . . 
Correction for buoyancy 
86092.016 
+ 5.866 
Number of Vibrations in vacuo, in 24- Mean Solar Hours. . . . 
86097-882 
y 2 
