464 Capt. Kater’s experiments for determining the variation 
August 17, A. M. Portsoy . — 2d Series. 
Clock gaining 42s,! 8. Barometer 30,15 inches. 
Temp. 
Time of coin- 
cidence. 
Arc 
of vibra- 
tion. 
Mean 
Arc. 
Interval 
in 
seconds. 
No. of 
vibrations. 
Observed 
vibrations 
n 24 hours. 
Cotrec- 
tion for 
Arc. 
Vibrations 
in 24 hours. 
59,5 
60,2 
h . m. 8, 
7.18.34 
26.29 
34.24 
42.19 
50.15 
58.11 
8. 6. 7 
14. 3 
21.59 
29.55 
37-52 
O 
1,27 
1,22 
1,17 
1,12 
1,07 
1,02 
0,99 
0,95 
0,91 
0,88 
0,84 
0 
1,24 
1,19 
1,14 
1,09 
1,04 
1,00 
0,97 
0,93 
0,89 
0,86 
475 
475 
475 
476 
476 
476 
476 
476 
476 
477 
s. 
2.53 
2,32 
2,13 
1,95 
1,77 
1,64 
1.54 
1,42 
1,30 
1,21 
59,8 
Mean 
475,8 
473,8 
86078,82 
1,7 S 
86080,60 
August 17, P. M. Barometer 30,16 inches. 
61,0 
61,5 
1.28.27 
36.21 
44.16 
52.10 
2. 0. 4 
8. 0 
15.55 
23.51 
31.46 
39.42 
47.38 
1,30 
1,23 
1,18 
1,13 
1,09 
1,04 
1,00 
0,95 
0,92 
0,88 
0,84 
1,26 
1,20 
1,15 
1,11 
1,06 
1,02 
0,97 
0,93 
0,90 
0,86 
474 
475 
474 
474 
476 
475 
476 
475 
476 
476 
2,60 
2,36 
2,17 
2,02 
1,84 
1,71 
1,54 
‘ 1,42 
' 1,33 
1,21 
61,2 
Mean 
1 
475,1 
473,1 
86078,21 
1,82 
86080,11 
