462 Capt. Kater’s experiments for determining the variation 
August 15, A. M. Portsoy. — 2d Series. 
Clock gaining 42 s , 18. Barometer 30,25 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. 
59,9 
60,3 
h. m. s. 
7.16.40 
24.35 
32.31 
40.26 
48.22 
56.18 
8. 4.14 
12.11 
20 . 7 
28. 4 
36. 1 
1,29 
1,23 
1,18 
1,13 
1,08 
1,03 
0,99 
0,96 
0,91 
0,87 
0,83 
0 
1,26 
1,20 
1,15 
1,10 
1,05 
1,01 
0,97 
0,93 
0,89 
0,85 
475 
476 
475 
476 
476 
476 
477 
476 
477 
477 
' s. 
2,60 
2,36 
2.17 
1,98 
1,81 
1,67 
1,54 
1,42 
1,30 
1.18 
60,1 
Mean 
476,1 
474,1 
86079,05 
1,80 
86080,85 
August 15, P. M. Barometer 30,25 inches. 
61,4 
61,9 
1.11. 5 
19. 0 
26.54 
34.50 
42.44 
50.40 
58.36 
2. 6.31 
14.27 
22.23 
30.19 
1,21 
1,16 
1,11 
1,07 
1,02 
0,98 
0,94 
0,90 
0,87 
0,84 
0,79 
1,18 
1,13 
1,09 
1,04 
1,00 
0,96 
0,92 
0,88 
0,85 
0,81 
475 
474 
\ 76 
47 4 
476 
476 
475 
476 
476 
476 
2,28 
2,09 
1,95 
1,78 
1,64 
1,51 
1,39 
1,27 
1,18 
1,08 
61,6 
Mean 
475,4 
473,4 
86078,51 
1,62 
86080,13 
