58 
Lieutenant Foster's account of 
Observation of Coincidences at Port Bowen [2nd Series) — continued. 
P.IVL July io, 1825, Port Bowen. 
Clock gaining at an assumed rate 
69 s .88 in 24 h. 
Hve r 5 Tem P- 5 °°- 
| Dew P t .42°. 
Bar r 
< Begs. 29.714 mer. 48°.5. ) = 29.774 mean cor. 
) Ends. 29.714 — • 49 0 . J to temp, of pend. 
Temp, 
o 
49,8 
+9,8 
50,0 
50,0 
50.0 
50.1 
5°»5 
5 °>7 
50,6 
5°»5 
Time of 
Disappear- 
ance. 
S 6 
7 
l 9 
3 l 
42 
54 
6 
17 
29 
4.1 
Time of 
Re-appear- 
ance. 
56 22 
8 1 
*9 3 8 
3 i >7 
42 58 
54 36 
6 16 
17 55 
29 36 
41 16 
Mean of Dis- 
appearance 
and Re-ap- 
ance. 
m. 
5 6 
7 
*9 
3 i 
42 
54 
6 
J 7 
29 
4 i 
s. 
20.5 
5 8 >5 
36 
14 
53>5 
32.5 
12.5 
5°)5 
30.5 
10.5 
Arc of 
vibra- 
tion. 
1. 21 
1. 12 
I.04 
O.98 
O.92 
O.85 
O.79 
0-73 
0.68 
0.63 
Mean 
Arc. 
Interval in seconds 
of Clock. 
Disap. 
o 
1.165 
I.080 
1 . 010 
0.950 
0.885 
0.820 
0.760 
0.705 
0.655 
697 
698 
697 
698 
700 
700 
697 
699 
700 
Disap. & 
Re-ap 
698 
697)5 
698 
699,5 
699 
700 
698 
700 
700 
Observed vibrations in 24 h. 
Disappearance 
86221,760 
86222,1 16 
86221,760 
86222,1 16 
86222,823 
86222,823 
86221,760 
86222,470 
86222,823 
Mean of Disap 
and Re-ap. 
86222,1 16 
86221,938 
86222,1 16 
86222,647 
86222,470 
86222,823 
86222,1 16 
86222,823 
86222,823 
Correct, 
for Arc. 
vib. 
2.219 
i. 9 °7 
1.666 
1.476 
1.280 
1.099 
0.944 
0.812 
0.701 
Vibra. in 24 h. cor. for Arc. 
Disappearance, 
86223,979 
86224,023 
86223,426 
86223,592 
86224,103 
86223,922 
86222,704 
86223,282 
86223,524 
Mean of Disap 
and Re-ap. 
86224,335 
86223,845 
86223,782 
86224,123 
86223,750 
86223,922 
86223,060 
86223,635 
86223,524 
50,20 
0,20 
Mean. 
Diff. to 50°. 
Correction for Temp. o°.20. 
Vibra. in 24 h. at Temp. 50°. 
86223,617 
-J- 0,086 
86223,775 
+ 0,086 
86223,703 
86223,861 
Table I, [2nd Series .) 
Times by Clock at Transits of Stars, at Port Bowen, July, 1825. 
Stars. 
6 th. 
7 th. 
8th. 
9th. 
10th. I 
Arcturus . 
a. Lyrse 
h. in. s. 
4 2 5 42,54 
8 48 32,41 
h, m. s. 
4 22 56,58 
8 45 46,75 
h. m. s. 
4 20 10,95 
8 43 °°)93 
h. in. s. 
4 1 7 24,54 
8 40 14,81 
h. m. s. 
4 14 38,80 
8 37 28,75 
