Gravity in South Africa. 
109 
Date, 17.1.10. 
Place : Roy. Obs. 0. G. H. 
Pendulum No. 23. 
Thermometer No. 53, 16-07 to 16-02 =-- 21-70° Cent. 
Barometer, 756*5. 
Amplitude, 8-2 to 7'2 = 7*7 = 26-2'. 
Doubled Distance, 3'0. 
Rate of Clock (Carroll), 1-0028685. 
Coincidences — 
h. 
21 
m. 
54 
h. m. s. 
DifE. 
05-7 
22 24 31-1 
1825-4 
42-2 
07-3 
•1 
18-6 
44-0 
•4 
55-1 
20-2 
•1 
31-6 
57-1 
•5 
08-0 
33-1 
•1 
44-7 
10-3 
•6 
21-0 
46-0 
•0 
58-0 
23-5 
•5 
34-0 
59-0 
•0 
Mean 1825-27 
c = 36-5054 ) 
2c-l ^ 72-0108 "^'^^ 
.5 = 0-5083976 sidereal 
It = +17 
a = ~ 19 
t = - 1069 
<J = - 499 
S = 0-5082406 
