Gravity in South Africa. 
123 
Date, 18.7.10. 
Place: Observatory, Johannesburg. 
Penduluna No. M. 
Thermometer No. 53, 11'48 to 11-40 = 14-28° Cent. 
Barometer, 619'7. 
Amphtude, lO'S to 9-5 = 9-9 = 19-6'. 
Doubled Distance, 5-2. 
Rate of Clock (Riefler mean time), correct = 1*0027379. 
Coincidences — 
h. 
12 
m. 
15 
s. 
37-8 
10-0 
44-8 
16-8 
51-0 
23-6 
58-0 
30-1 
04-5 
36-7 
Diff. 
1665-9 
(i-O 
5 0 
Mean 1665-49 
c = 33-3098 
2c-l = 65-6196 
mean tmie 
6 = 0-5090094 sidereal 
// = 0 
a = - 10 
/ - -704 
<l = -420 
S = 0-508S960 
