in the length of the pendulum vibrating seconds. 4,67 
August 31, A. M. at Leith Fort. — 1st. Series 
Clock gaining 26 ', 85 in a mean solar day. Barometer 
29.95 inches. 
Temp. 
Time of coin- 
cidence. 
Arc 
of vibra- 
tion. 
Mean 
Arc. 
Interval 
in 
seconds. 
No. of 
vibrations. 
Observed 
vibrations 
in 24 hours. 
Correc- 
tion for 
Arc. 
Vibrations, 
in 24 hours. 
0 
56,5 
5,67 
h. m. S. 
7.2 9- 9 
37-21 
45.35 
54.49 
8. 2. 2 
10.17 
1S.32 
26.46 
35. 0 
43.16 
51 30 
O 
lao’ 
1,06 
1,02 
0,97 
0,93 
0,88 
0,85 
0,82 
0,78 
0,75 
0,73 
0 
1,08 
1,04 
0,99 
0,95 
0,90 
0,86 
0,83 
0,80 
0,76 
0,74 
492 
494 
494 
493 
495 
495 
494 
494 
496 
494 
S. 
1,91 
1,77 
l,6l 
1,48 
1,33 
1,21 
1,13 
1,05 
0,94 
0,89 
56,6 
Mean 
I 
494,1 
492,1 
86077,01 
1,33 
86078,34 
August 31, P. M. 
Barometer 29,85 inches. 
53,6 
59 2 
1 33.24 
4 1 .36 
49.48 
58. 0 
2. 6.13 
14.26 
22 38 
30.52 
39 5 
47.18 
55.31 
1,17 
1,12 
1,07 
1,03 
0,98 
o ,94 
0,89 
0,86 
0,83 
0,80 
0,77 
1,14 
1,09 
1,05 
1,00 
0,96 
0,91 
0,87 
0,84 
0,81 
0,78 
492 
492 
492 
493 
493 
492 
494 
493 
493 
493 
2,13 
1,95 
1,80 
1,64 
1,51 
1,36 
1,24 
1,16 
1,08 
1,00 
58,9 
Mean 
492,7 
490,7 
86076,02 
1,48 
860/7,50 
MDCCCXIX. 
3P 
» 
