experiments made with an invariable pendulum. 
29 
Observation of Coincidences at Port Bowen (1st Series ) — continued. 
Night, .6th June, .825, Port Bowen. f Temp. ^ r Begs. 29 . 79+ mer . 4; o. , _ 2 <, 8s9 mean cor . 
Clock gaining at a mean rate 6p s .88. ' (Dew P l . 35 0 . ' ( Ends. 29.793. — 45 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. 
nterval in seconds 
of Clock. 
Observed vibrations in 24 h. 
Correct, 
for Arc. 
Vibra. in 24 h. cor. for Arc. 
Disappearance. 
Mean of Disap. 
and Re-ap. 
Disappearance. 
Mean of Disap, 
and Re-ap. 
Disap. 
Disap. & 
Re-ap. 
0 
49,2 
49 
49 
49,2 
49 > ! 
0,9 
h. m. s. 
9 47 H 
59 53 
10 11 32 
23 1 1 
34 5 ° 
45 3 ° 
57 9 
11 8 49 
20 29 
32 10 
m. s. 
47 1 7 
59 57 
11 37 
23 17 
34 57 
45 3 8 
57 19 
9 00 
20 39 
32 21 
ra. s. 
47 J 5>5 
59 55 
11 34-5 
23 14 
34 53>5 
45 34 
57 14 
8 54,5 
20 34 
22 15,5 
0 
1 19 
I. IO 
1.02 
0.94 
0.88 
0.82 
0.76 
0 71 
0.67 
0.62 
0 
I.I45 
I.060 
0.980 
O.910 
0.850 
O.79O 
Q -735 
0.690 
0.645 
s. 
699 
699 
699 
699 
700 
699 
700 
700 
701 
s, 
699,5 
699,5 
699,5 
699.5 
700.5 
700 
700.5 
699.5 
701.5 
86222,470 
86222,470 
86222,470 
86222,470 
86222,823 
86222,470 
86222,823 
86222,823 
86223,176 
86222,647 
86222,647 
86222,647 
86222,647 
86223,000 
86222,823 
86223,000 
86222,647 
86223,352 
vib. 
2.I43 
1-837 
I.570 
i -354 
1.178 
1.020 
0.883 
0.776 
0.681 
86224,613 
86224,307 
86224,040 
86223,824 
86224,001 
86223,490 
86223,706 
86223,599 
86223,857 
86224,790 
86224,484 
86224,217 
86224,001 
86224,178 
86223,843 
86223,883 
86223,423 
86224,033 
Mean. 
0 Correction for Temp. o°.g. 
Diff. to 50. r y 
Vibrations in 24 h. at Temp. 50°, 
86223,937 
— 0,381 
86224,095 
— 0,381 
86223,556 
86223,714 
Morning, 17th June, 1 825, Port Bowen. r ^Temp. 46°. g ar r J Begs. 29.796 mer. 42 0 . ) = 29.859 mean cor. 
Clock gaining at a mean rate 69\88. ^ * (Dew P*. 37 0 . ar ‘ (End?. 29.792 — 42°.) to temp, of pend. 
46 
46 
46 
46 
1 32 51 
44 3 i 
5 6 13 
2 7 55 
19 37 
31 20 
43 4 
54 47 
3 6 32 
18 17 
32 55 
44 3 8 
56 18 
8 2 
19 45 
31 29 
43 14 
54 57 
6 43 
18 27 
32 53 
44 34.5 
56 15,5 
7 5 8 >5 
19 4 i 
3 ‘ 24,5 
43 9 
54 52 
6 37,5 
18 22 
1. 16 
1 .08 
1 .00 
°-93 
0.87 
0.81 
0.75 
0.70 
0.65 
0.60 
1. 1 20 
1.040 
0,965 
0.900 
0 840 
0.780 
0.725 
0.675 
0.625 
700 
702 
702 
702 
703 
7°4 
7°3 
705 
705 
701.5 
701 
703 
702.5 
703.5 
704.5 
703 
705.5 
704.5 
86222,823 
86223,527 
86223,527 
86223,527 
86223,878 
86224,227 
86223,878 
86224,576 
86224,576 
86223,352 
86223,176 
86223,878 
86223,703 
86224,053 
86224,402 
86223,878 
86224,750 
86224,402 
2.051 
1.768 
1.522 
1.324 
1. 154 
0.995 
0.859 
0-745 
0.638 
86224,874 
86225,295 
86225,049 
86224,851 
86225,032 
86225,222 
86 224,737 
86225,321 
86225,214 
86225,403 
86224,944 
86225,400 
86225,027 
86225,207 
86225,397 
86224,737 
86225,495 
86225,040 
46 
4,0 
Mean. 
„ Correction for Temp. 4°.o. 
Diff. to 50°. r 
Vibra. in 24 h. at Temp. 50 0 . 
86225,066 
— 1,692 
86225,183 
— 1,692 
86223,374 
86223,491 
