experiments made with an invariable pendulum. 
31 
Observation of Coincidences at Port Bowen (ist Series ) — continued. 
Night, 17th June, 1825, Port Bowen. ^ C 
Clock gaining at a mean rate 69'. 8 8. 1 
Temp. 52 0 . t> 5 Begs. 29.828 mer. 45°.5. 7 29.905 mean cor. 
Dew P ( . 36°. ' £End&. 29.847 — - 47 0 . J to temp, of pend. 
Temp. 
Time of 
Disappear- 
ance. 
Time of 
Re-appear- 
ance. 
Mean of Dis- 
appearance 
and Re-ap- 
pearance. 
Arc of 
vibra- 
tion. 
Mean 
Arc. 
Interval in se- 
conds of Clock. 
Observed vibrations in 24 h. 
Correct 
for Arc 
Observed vibra. cor. for Arc. 
Disappearance 
Mean of Di sap. 
and Re-ap. 
Disap. 
Disap. & 
Re-ap. 
Disappearance 
Mean of Disap. 
and Re-ap. 
0 
5 1 
5^5 
52,5 
5«>5 
h. in. s. 
9 22 52 
3+ 29 
46 5 
57 41 
10 9 18 
20 56 
32 34 
44 11 
55 48 
11 7 26 
m. s. 
22 56 
34 33 
46 1 1 
57 49 
9 2 7 
21 5 
32 43 
44 22 
56 1 
7 4 ° 
m. s. 
22 54 
34 31 
46 8 
57 45 
9 22,5 
21 00,5 
32 38 5 
44 1 6 ,5 
55 54,5 
7 33 
O 
1. 19 
I. IO 
1 .02 
O.95 
0.88 
0.82 
0 75 
0.70 
0 .66 
0.62 
O 
I-I 45 
I.060 
O.985 
O.915 
0.850 
O.785 
O.725 
O.680 
O.64O 
s. 
697 
696 
696 
697 
698 
698 
697 
6 97 
698 
s. 
697 
697 
697 
697.5 
698 
698 
698 
698 
698.5 
86221,760 
86221,403 
86221,403 
86221,760 
86222,1 16 
86222,1 16 
86221,760 
86221,760 
86222,1 16 
86221,760 
86221,760 
86221,760 
86221,938 
86222,1 16 
86222,1 16 
86222,1 16 
86222,1 16 
86222,293 
vib. 
2.143 
i - 8 37 
1.586 
1.369 
1.178 
1.007 
0.859 
0.756 
0.670 
86223,903 
86223,240 
86222,989 
86223,129 
86223,294 
86223,1 23 
86222,619 
86222,516 
86222,78 6 
86223,903 
86223,597 
86223,346 
86223,307 
86223,294 
86223,123 
86222,975 
86222,872 
86222,963 
51.62 
1.62 
Mean. 
Correction for Temp. i°.62. 
Diff. to 50°. 
Vibra. in 24b. at Temp. 50 0 . 
86223,066 
-f- 0,685 
86223,264 
+ 0,685 
86223,751 
86223,949 
Mcrr 
Clo< 
ting, 1 8th June, 1825, Port Bowen. r 
:k gaining at a mean rate 69 s .88. j 
Temp. 51°. C Beg?. 29.841 mer. 46°. 7 — 29.908 mean cor. to 
Dew P . 40°. £ Begs. 29,841 — • 46°. j temp, of pend. 
5 1 
52 
S ' >5 
Si 
12 55 15 
1 651 
18 27 
3 ° 3 
41 40 
53 18 
2 4 54 
16 22 
28 11 
40 47 
55 19 
6 56 
18 33 
30 10 
4 i 47 
53 25 
5 3 
16 42 
28 21 
41 OI 
55 17 
6 53,5 
18 30 
3 ° 6,5 
4 i 43,5 
53 21,5 
4 58,5 
16 37 
28 16 
40 54 
1. 15 
1.07 
0.99 
°-93 
0.87 
0.80 
0.75 
0.70 
0.65 
0.60 
1. 1 IO 
I.030 
0.960 
O.9OO 
O.835 
o -775 
0.725 
0.675 
0.625 
696 
696 
696 
697 
698 
696 
698 
699 
696 
696,5 
696,5 
696.5 
697 
698 
697 
698.5 
699 
698 
86221,403 
8622 1,403 
86221,403 
86221,760 
86222,1 16 
86221,403 
86222,1 16 
86222,470 
862 21,403 
86221,582 
86221,582 
8622 1,582 
86221,760 
86222,1 16 
86221,760 
86222,293 
86222,470 
86222,1 16 
* 
2.014 
1-735 
i- 5°7 
1.324 
1.138 
0.982 
0.859 
0.745 
0.638 
86223,417 
86223,138 
86222,910 
86223,084 
86223,254 
86222,385 
86222,975 
86223,215 
86222,041 
86223,596 
86223,317 
86223,089 
86223,084 
86223,254 
86222,742 
86223,152 
86223,215 
86222,754 
SI , 37 
i ,37 
Mean. 
Correction for Temp. i°.37. 
Diff. to 50°. 
Vibra. in 24 h. at Temp. 50°. 
86222,935 
+ °>579 
86223,134 
+ °>579 
86223,514 
86223,713 
