experiments made with an invariable pendulum. 
41 
Observation of Coincidences at Port Bowen (ist Series) — continued. 
Morning, June 23rd, 1825, Port Bowen. r s Temp . ^ f r Begg . zgM6 mer . ^ 0 1 =29 . 749 mean cor. 
Clock gaining at a mean rate 69*. 88. • ( Dew P*^ 0 . ar ’ ( Ends. 29.686 — 45° i 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 seconds 
of Clock. 
Observed vibrations in 24 h. 
Correct, 
for Arc- 
Vibra. in 24 h. cor. for Arc. 
Disappearance. 
Mean of Disap. 
and Re-app. 
Disappearance 
Mean ofDisap, 
and Re-app. 
Disap. 
Disap. & 
Reapp. 
48,9 
46,0 
46.0 
48.2 
49 ’S 
S°,o 
49,8 
50.0 
J0,0 
50.2 
b. m. s. 
1 7 35 
l 9 '3 
3 o 53 
42 36 
54 15 
2 5 S 3 
l 7 33 
29 12 
40 51 
52 31 
m. s. 
7 40 
19 20 
31 00 
42 42 
54 22 
6 2 
17 42 
29 24 
41 2 
52 43 
m. s. 
7 37>5 
19 16,5 
3° 5 6 >5 
42 39 
54 18,5 
5 57’5 
*7 37’5 
29 1 8 
40 56,5 
52 37 
0 
, * I 5 
1.07 
0.99 
0.94 
0.88 
0.82 
075 
0.70 
0.65 
0.61 
0 
1. 110 
1.03° 
O.965 
O.9IO 
O.850 
O.785 
O.725 
0.675 
O.63O 
698 
700 
703 
699 
698 
700 
699 
699 
700 
s. 
699 
700 
702.5 
699.5 
699 
700 
700.5 
698.5 
700.5 
86222,1 16 
86222,823 
86223,878 
86222,470 
86222,1 16 
86222,823 
86222,470 
86222,470 
86222,823 
86222,470 
86222,823 
86223,703 
86222,647 
86222,470 
86222,823 
86223,000 
86222,293 
86223,000 
vib. 
2.OI4 
1-735 
I.522 
1-354 
1.178 
1.007 
0.859 
0.745 
0.649 
86224,130 
86224,558 
86225,400 
86223,824 
86223,294 
86223,830 
86223,329 
86223,215 
86223,472 
86224,484 
86224,558 
86225,225 
86224,001 
86223.648 
86223,830 
86223^59 
86223,038 
86223.649 
48,86 
1,14 
Mean. 
•p , . nr „ 0 Correction for Temp. i°.i4. 
Dm. to 50. r T 
Vibrations in 24 h. at Temp. 50°. 
86223,895 
— 0,482 
86224,032 
— 0,482 
86223,413 
86223,550 
Forenoon, 23rd June, 1825, Port Bowen. r r Te mp. 50°. JBeg^. 29700 mer. 45 0 ) = 29.767 mean cor. 
Clock gaining at a mean rate 69 s . 88. ' (Dew P*. 37 0 . ‘ (End. 29709 — 45°-5 } to temp, of pend. 
49>5 
49,0 
48,2 
4 8 >5 
48.8 
49,0 
49,0 
48,8 
48,8 
48.9 
9 18 41 
30 18 
4 i 57 
53 3 6 
10 5 17 
16 57 
28 37 
40 17 
5 i 59 
n 3 42 
18 44 
30 24 
42 2 
53 44 
5 24 
*7 4 
28 45 
40 27 
52 10 
3 52 
18 42,5 
30 21 
4 1 59^5 
53 4 ° 
5 20,5 
17 00,5 
28 41 
40 22 
52 4,5 
3 47 
1. 18 
1.09 
1. 01 
0.94 
0.88 
0.82 
0.76 
0.71 
0.66 
0.62 
1-135 
I.050 
O.975 
O.9IO 
O.85O 
O.79O 
°-735 
0.685 
0.640 
697 
699 
699 
701 
700 
700 
700 
702 
703 
698,5 
698.5 
700.5 
700,5 
700 
700.5 
701 
702.5 
702,5 
86221,760 
86222,470 
86222,470 
86223,176 
86222,823 
86222,823 
86222,833 
86223,527 
86223,878 
86222,293 
86222,293 
86223,000 
86223,000 
86222,823 
86223,000 
86223,176 
86223,703 
86223,703 
2.106 
1.803 
1-554 
1-354 
1.178 
1.020 
0.883 
0.766 
0.670 
86223,866 
86224,273 
86224,024 
86224,530 
86224,001 
86223,843 
86223,706 
86224,293 
86224,548 
86224,399 
86224.0 96 
86224,554 
86224,354 
86224.001 
86224,020 
86224,059 
86224,469 
86224,373 
« -** 
OO 
- 3 ? 
Mean. 
Correction for Temp. i°.ic. 
DifF. to 50°. ^ 3 
Vibrations in 24 h. at Temp. 50°. 
86224,120 
— 0,486 
86224,258 
— 0,486 
86223,634 
86223,772 
MDCCCXXVI. * G 
