502 Capt. Kater’s experiments for determining the variation 
Station. As the house could not be seen, I chose a station 
(B) near it, which by measurement was 20 6 feet to the 
north of the clock. The following triangles were then ob- 
served. 
From the North end of the Base to the South end , 90 6 feet. 
North end, 
South end, 
Arbury Hill, 
o / // 
97-37- 5l 
54.30.21 J 
- (27-52-34) 
to Arbury Hill 
1921 feet. 
From the South end of the Base to Arbury Hill, 1921 feet. 
Southend, - 104.24.17 1 f 
Arbury Hill, (34.42. 4) J 3 1011 ' | 2842 feet. 
Station B, - 4 °-53-39 
Adding 206 feet to 2842, we obtain 3048 feet, for the dis- 
tance from the Pendulum to Arbury Hill, which was so 
nearly in the direction of the meridian as to require no cor- 
rection. 
