the length of the pendulum at Madras. 169 
July 27. 
Clock losing i s ,i5. Barometer 30,01 inches. 
Temp. 
Time of coin- 
cidence. 
Arc 
af vibra- 
tion. 
Mean 
Arc. 
Interval 
in 
seconds. 
Number 
of vibra- 
tions. 
Observed 
vibrations 
in 24 hours. 
Correc- 
tion for 
Arc. 
Vibrations 
in 24 hours. 
O 
h. m. s. 
0 
O 
67,2 
I 2 27 
1,22 
s. 
1,12 
1622 
2,06 
29 29 
1,02 
0,94 
1630 
*.45 
5 6 39 
0,86 
0 >79 
I 6 33 
1,02 
2 33 52 
°>73 
0,67 
1638 
o .73 
67,8 
51 10 
0,62 
67»5 
Mean 
1630,75 
1628,75 
86292,89 
1,32 
86294,2) 
July 28. 
Clock losing 1,05 
Barometer 30,01 inches. 
O 
b. m. s. 
O 
O 
67,8 
0 50 41 
1,19 
1,09 
1614 
*.95 
* 17 35 
1,00 
0,92 
1624 
*.39 
44 39 
0,84 
0,78 
163° 
1,00 
2 11 49 
°>73 
0,67 
1627 
o .73 
68,4 
38 56 
0,62 
68,1 
Mean 
*623.75 
1621,75 
86292,53 
1,27 
86293,80 
July 29. 
Clock losing i’,o7. 
Barometer 30,01 inches. 
O 
h. m. s. 
O 
0 
67,9 
0 47 l 
1,21 
1,11 
1616 
2,02 
* 13 57 
1,02 
0,94 
1620 
*»45 
40 57 
0,86 
o ,79 
1625 
1,03 
282 
°>73 
0,68 
1630 
0,76 
68,8 
35 * 2 
0,63 
68,3 
Mean 
1622,75 
1620,75 
86292,45 
1.3* 
86293,76 
mdcccxxii 
Z 
