480 CAPTAIN SABINE ON THE LENGTH OF THE SECONDS PENDULUM 
Exp. M. August 26th p.m. to August 27th a.m. Dent making 86465.98 vibrations. 
No. of 
Coincid. 
a 
*4 
-C 
d 
to 
P 
rj 
O 
Times of 
Arcs. 
Mean 
Therm. 
Mean 
Interval. 
Mean 
Gauge. 
Correc- 
tion for 
Arc. 
Vibrations 
in 24 hours. 
Disap. 
Reap. 
Coincidences. 
1 
118 
O 
56.7 
56.75 
in. | m s 
1.24 51 10 
1.99 56 22 
m s 
51 19 
56 57 
h m s 
5 51 14.5 
19 56 39.5 
O 
1.27 
0.21 
r 56.73 
J + 0.75 
433.55 
1.615 
O 
+ 0.91 
86067.99 
L 57-48 
Exp. N. August 27th a.m. Dent making 86466.06 vibrations. 
Barom '{ ending " S 29.508 5+0 } 29>5 14 5 +- 019 Ca P iU -i -0.76 to 32° = 29.457. 
1 
24 
25 
26 
O 
57.5 
57.5 
— 
m s 
47 23 
28 51 
m s 
47 31 
29 15 
h m s 
20 47 27 
j-23 36 05.75 
O 
1.17 
0.30 
O 
| 57.50 
421.61 
— 
O 
+ 0.95 
86056.84 
— 
42 58 
43 19 
The Pendulum was then removed ; the planes examined, and found truly 
horizontal ; and the Pendulum replaced with the Weight above. 
Exp. O. In Atmospheric Pressure. August 28th a.m. Dent making 86466.25 vibrations. 
Barom. j 29 -^ 2 j 29.426 55°.5 j +.019 Capill. ; -.069 to 32° =29.376. 
No- of 
Coincid. 
Therm. 
Gauge. 
Times of 
Arc of 
Vibra- 
tion. 
Mean 
Therm. 
Mean 
Interval. 
Mean 
Gauge. 
Correc- 
tion for 
Arc. 
Vibrations 
in 24 hours. 
Disap. 
Reap. 
Coincidence. 
1 
25 
56.0 
56.1 
— 
m s 
18 52 
06 35 
m s 
19 02 
07 35 
h m s 
20 18 57 
23 07 05 
O «-* 
- k>° 
CO 0 
O 
j 56.05 
420.33 
— 
O 
+ 1.11 
86055.95 
Exp. P. August 28th p.m. Dent making 86466.35 vibrations. 
O 
in. 
m 
s m 
s 
1 
55.5 
0.895 
46 
52 47 
01 
2 
55.7 
54 
03 54 
13 
42 
56.3 
42 
3242 
56 
43 
56.3 
i.990 
49 
4550 
1 
08 
h m s 
00 50 32.25 
5 46 20.25 
O 
1.29 
f 55.95 
.J + 0.75 
432.88 
1.442 
O 
+ 1.82 
86068.67 
0.48 
[_ 56.70 
