94 
CAPTAIN SABINE ON THE DIFFERENCE IN THE VIBRATIONS 
Table C. Vibration of Pendulum 12 at Greenwich, May and June 1828. 
Exp. 1 . May 15th, 1828. Clock making 86406.34 Vibrations in a Mean Solar Day. 
Barom. ^ 09*75 1 29.765. Observer, Mr. T. G. Taylor. 
Therm, j 
No. of 
Coincid. 
Times of 
Disapp. 
Re-app. 
Coincidence. 
O 
m s 
in s 
h m s 
59-4 
1 
6 07 
6 09 
9 6 08.0 ~1 
h m s 
59-6 
2 
12 37 
12 39 
9 12 38.0 
> 9 12 38 
59-7 
3 
19 07 
19 09 
9 19 08.0 
60.4 
21 
16 21 
16 34 
11 16 27-5 n 
60.6 
22 
22 52 
23 05 
11 22 58.5 
>11 22 58.5 
60.7 
23 
29 23 
29 36 
11 29 29.5 J 
r 
Arc and 
Correction. 
Mean 
Interval. 
Reduct, 
to 62 °. 
Corrected Vibra- 
tions in a Mean 
Solar Day. 
0 . 96 " 
0.45 
■ + 0.76 
391.02 
-0.83 
85964.31 
Exp. 2. Fresh impulse given. Barom 
/ 29.761 
' \ 29.75 J 
29.755. Observer, Mr. T. G. Taylor. 
m 
S 
111 
S 
h 
m 
s 
61.2 
1 
49 
03 
49 
05 
11 
49 
04.01 
h 
m 
S 
61.3 
9 
/V 
55 
33 
55 
36 
11 
55 
34.5 
!>n 
55 
34.33 
0°.94l 
61.4 
60.8 
3 
21 
02 
59 
03 
14 
02 
59 
06 
25 
12 
1 
02 
59 
04.5 J 
19-51 
1 + 0.74 
S 
390.81 
S 
-0.36 
85964.52 
61.0 
22 
05 
45 
05 
57 
2 
05 
51.0 
> 2 
05 
50.5 
0.44 J 
61.2 
23 
12 
15 
12 
27 
2 
12 
21.0 J 
Exp. 3. 
May 17tli. Clock making 86405.93 Vibrations. Barom. ^09 j 1 29.705. 
Observer, Mr. T. G. Taylor. 
Therm. 
No. of 
Coincid. 
Times of 
Arc and 
Correction. 
Disapp. Re-app. 
Coincidence. 
m s 
m s 
h m s 
59-2 
1 
29 42 
29 43 
18 29 42.51 h m S 
59.4 
2 
36 13 
36 15 
18 36 14.0 >18 36 13.67 
0.94- 
59-5 
3 
42 43 
42 46 
18 42 44.5 J 
V J (\*7A 
60.0 
21 
40 00 
40 12 
20 40 06.01 
60.0 
22 
46 31 
46 43 
20 46 37.0 >20 46 37.17 
0.44 
60.1 
23 
53 02 
53 15 
20 53 08.5 J 
Reduct, 
to 62 °. 
Corrected Vibra- 
tions in a Mean 
Solar Day. 
-0.99 
85963.91 
Mean 
Interval. 
391.175 
Exp. 4. 
Fresh impulse given. Barom. | ^ 29.715. 
Observers : 1 — 3 Mr. T. G. Taylor : 21 — 23 Captain Sabine. 
60.2 
60.3 
60.5 
610 
61.0 
61.1 
1 
2 
3 
21 
22 
23 
8 59 
15 29 
21 59 
19 14 
25 44 
32 16 
m 
9 
15 
22 03 
19 24 
25 57 
32 28 
h 
21 
21 
21 
23 
23 
23 
m 
08 
s 
59.5-] 
15 30.0 >21 
22 
19 
01.0 J 
19-0-] 
25 50.5 >$ 
32 22.0 J 
m s 
15 30.17 
0°.95- 
> + 0.74 
s 
391.017 
— 0.56 
85964.14 
25 50.5 
0.43_ 
