experiments made with an invariable pendulum. 
39 
Observation of Coincidences at Port Bowen ( 1st Series') — continued. 
Morning, Z2d June, 1825, Port Bowen. ( 
Clock gaining at a mean rate 695.88. Hyg . < 
'Temp. 50°. R (Begs- 29.672 mer . 45°.5. 
Dew P l . 36°. Ends. 29.67 11 — 46°. 
) = 29.735 mean cor. 
) 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 
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-ap. 
Disappearance. 
Mean of Disap. 
and Re-ap. 
Arc. 
Disap. 
Disap. & 
Re-ap. 
0 
So 
5°,5 
50,8 
So.o 
5 C 5 
h. m. s. 
0 49 43 
1 X 20 
12 58 
24 34 
3 6 '3 
47 53 
59 3 i 
2 11 13 
22 51 
34 3 o 
m. s. 
49 48 
1 26 
13 6 
24 44 
36 24 
48 4 
55 44 
1 1 24 
23 3 
34 43 
m. s. 
49 45,5 
1 23 
13 2 
2 4 39 
36 18,5 
47 58,5 
59 37,5 
11 18,5 
22 57 
34 36,5 
0 
1. 12 
I.O4 
O.97 
O.9O 
O.84 
O.78 
0-73 
0.68 
0.64 
0.60 
O 
I.080 
I.005 
o -935 
0.870 
0.810 
0 755 
0.705 
0.660 
0.620 
s. 
69 7 
698 
696 
699 
700 
698 
702 
698 
699 
s. 
697.5 
69 9 
697 
6 99>5 
700 
699 
701 
698.5 
6 99>5 
86221,760 
86222,1 16 
86221,403 
86222,470 
86222,823 
86222,1 16 
86223,527 
86222,1 16 
86222,470 
86221,938 
86222,470 
8622 1,760 
86222,647 
86222,823 
86222,470 
86223,176 
86222,293 
86222,647 
1 
vib. 
1.907 
I.650 
1.429 
I.237 
I.073 
O 932 
0.812 
O.712 
0.628 
86223,667 
86223,7 66 
86222,832 
86223,707 
86223,896 
86223,04-8 
86224,339 
86222,828 
86223,098 
86223,845 
86224,120 
86223,1 89 
86223,884 
86223,896 
86223,402 
86223,988 
86223,005 
86223,275 
50,56 
0,56 
Mean. 
Diff to 50° Correction for Temp. o°.56. 
Vibra. in 24 h. at Temp. 50 0 . 
86223,465 
+ 0,237 
86223,623 
+ 0,237 
86223,702 
86223,860 
Forenoon, 22d June, 1825, Port Bowen. 
Clock gaining at a mean rate 69S.88. -^2 • 
( Temp. 50°. T> r J Begs. 29.700 mer. 45 0 . 
(DewP 4 , 42 0 . 1 Ends. 29.693 — 44 0 . 
) =; 2 9-759 mean cor. 
J to temp, of pend. 
50.2 
48,5 
48.2 
48,2 
9 3 i 13 
42 52 
54 27 
1067 
17 48 
29 29 
4 1 4 
52 51 
11 4 32 
16 13 
31 18 
42 5 6 
54 34 
6 14 
17 55 
29 3 6 
41 11 
53 00 
4 43 
16 23 
3 i i 5>5 
42 54 
54 3°>5 
6 10,5 
17 5*>5 
29 32,5 
4 1 7*5 
52 55>5 
4 37,5 
16 18 
1. 10 
1.02 
0.95 
0.89 
0.83 
0.77 
0.72 
0 67 
0.62 
0.58 
1 060 
0.985 
0.920 
0.860 
0.800 
0.745 
0.695 
0.645 
0.600 
699 
695 
700 
701 
701 
695 
707 
701 
701 
698.5 
696.5 
700 
701 
701 
695 
708 
702 
700.5 
86222,470 
86221,046 
86222,823 
86223,176 
86223,176 
86221,046 
86225,269 
86223,176 
86223,176 
86222,293 
86221,582 
88223,823 
86223,176 
86223,1 76 
86221,046 
86225,615 
86223,527 
86223,000 
1-837 
I.586 
1.384 
I.209 
1.046 
0.907 
0.788 
O.680 
0.589 
86224,307 
86222,632 
86224,207 
86224,385 
86224,222 
86221,953 
86226,057 
86223,856 
86223,765 
86224,130 
86223,168 
86224,207 
86224,385 
86224,222 
86221,953 
86226,403 
86224,207 
86223,589 
48,77 
1,23 
Mean. 
Diff. to 50°. Correction for Temp. x°.23. 
Vibra. in 24 h. at Temp. 50°. 
86223,931 
— 0,519 
86224,029 
— 0,519 
86223,412 
86223,5 10 
