464 CAPTAIN SABINE ON THE LENGTH OF THE SECONDS PENDULUM 
The inference from this day’s experiment is to the same effect as before. 
The multiplier required in this instance is 1.32, altering the result in the 
smallest arcs four hundredths of a vibration, and bringing the others in 
accordance with it. The corrections and the corrected vibrations become 
I. 
II. 
III. 
Corrections 
. . +2.68 
+ 0.77 
+0.17 
86077.11 
86078.98 
86079.60 
Corrected vibrations . . 
. 86079.79 
86079.75 
86079.77 
On February 3rd I made a third series with the pendulum in the same posi- 
tion ; the pendulum of the clock had been shortened since January 29th, and 
was now making about 86371.0 vibrations ; but the temperature being at this 
time very low, its going was less regular than usual. To obviate that incon- 
venience I commenced with a series in large arcs ; made then two series in 
small arcs, and concluded with a second series in large arcs ; and finally took 
a mean between the two series in large arcs and the two series in small arcs, 
as the results to be compared with each other. 
No. of 
Coincid. 
Therm. 
O 
bJQ 
3 
oj 
O 
Times of 
Arcs. 
Mean 
Temp. 
Mean 
Gauge. 
Mean 
Interval. 
Reductions 
Vibrations 
per diem. 
Disapp. 
Reapp. 
Coincidence. 
to 25°. 
to a Va- 
cuum. 
in. 
m s 
m s 
h m s 
O O 
O 
in. 
f 25.0 
1 
25.0 
1.30 
20 07 
20 15 
2 20 11 
1.26X1.05 = 1.32 
J + 0.75 
1.30 
593.04 
+ 0.33 
+ 0.64 
86080.67 
13 
25.0 
1.30 
18 40 
18 55 
4 18 47.5 
0.85X1.05 = 0.89 
L 25.75 
Fresh impulse. 
f 24.8 
1 
24.9 
1.30 
26 23 
26 55 
4 26 39 
0.35X1.05 = 0.37 
J 
+ 0.75 
1.30 
598.29 
+ 0.24 
+ 0.64 
86083.16 
13 
24.7 
1.30 
25 51 
26 46 
6 26 18.5 
0.25X1.05 = 0.26 
> 
L 25.55 
f 24.70 
26 
24.7 
1.34 
35 25 
36 35 
8 36 00 
0.15X1.05 = 0.16 
J 
+ 0.75 
1.32 
598.58 
+ 0.20 
+ 0.65 
86083.27 
L 25.45 
Fresh im 
pulse. 
r 24.90 
1 
24.8 
1.34 
04 03 
04 09 
9 04 06 
1.37X1.05 = 1.44 
J 
+ 0.75 
1.37 
590.87 
+ 0.29 
+ 0.67 
86079.58 
16 
25.0 
1.40 
31 41 
31 57 
11 31 49 
0.80X1.05 = 0.84 
_ 25.65 
_ 
