IN THE OBSERVATORY OF GREENWICH. 
481 
Exp. Q. August 28th p.m. Dent making 86466.40 vibrations. 
No. of 
Coincid. 
H 
S) 
P 
53 
o 
Times of 
Arc of 
Vibra- 
tion. 
Mean 
Therm. 
Mean 
Interval. 
Mean 
Gauge. 
Correc- 
tion for 
Arc. 
Vibrations 
in 24 hours. 
Disap. 
Reap. 
Coincidence. 
1 
40 
o 
56.3 
55.6 
in. 
1.13 
2.17 
m s 
14 33 
55 24 
m s 
14 43 
55 54 
h m s 
6 14 38 
10 55 39 
o 
1.38 
0.51 
f 55.95 
l + 0.75 
L 56. 70 
432.33 
1.650 
+ 2?07 
86068.45 
Exp. R.. August 28th p.m. to August 29th a.m. Dent making 86466.44 vibrations. 
1 
72 
55.6 
56.0 
in. 
0.85 
2.52 
m s 
9 24 
41 51 
m s 
9 37 
42 37 
h m s 
11 09 30.5 
19 42 14 
O 
1.32 
0.20 
r 55°80 
J + 0.75 
l 56.55 
433.29 
1.685 
+ 1J5 
86068.45 
Exp. S. August 29th a.m. to August 29th p.m. Dent making 86466.43 vibrations. 
1 
53 
56.0 
57-6 
in. 
0.935 
2.09 
m s 
3 13 
18 19 
m s 
3 35 
18 49 
h m s 
20 3 24 
2 18 34 
O 
1.25 
0.34 
f 56°80 
y + 0.75 
L 57.55 
432.89 
1.512 
+ 1?40 
86068.34 
Slider removed to 1.566 &c. from the middle towards the weight. Planes 
examined^ and found horizontal. Pendulum replaced, Weight above. 
Exp. T. August 29th p.m. Dent making 86466.40 vibrations. 
1 
49 
58.0 
56.5 
0.985 
1.460 
m s 
42 13 
28 37 
m s 
42 23 
29 12 
h m s 
4 42 18 
10 28 54.5 
1.20 
0.41 
f 57°25 
J + 0.75 
433.26 
1.222 
+ 1°50 
86068.76 
L 58.00 
Exp. U. August 29th p.m. to August 30th a.m. Dent making 86466.39 vibrations. 
1 
82 
5§.6 
55.9 
in. 
0.960 
1.960 
m s 
41 17 
26 35 
m s 
41 27 
27 27 
h m s 
10 41 22 
20 27 01 
O 
1.32 
0.17 
f 56°25 
j + 0.75 
433.81 
1.460 
+ 1-09 
86068.83 
(_ 57-00 
3 q 2 
