acceleration of the pendulum in different latitudes. 173 
TABLE I. 
Clock No. 1. in London ; Barom. mean height 30.31 in. ; Chron. No. 112, 
losing 0,8 s per diem. 
1818. 
Clock fast 
of 112. 
Daily loss. 
Mean 
arc. 
Mean 
temp. 
Corrections. 
Daily vibra- 
tions. 
Corrections. 
Corrected vi- 
brations. 
Temp. 45 °. 
on 
112. 
on 
Time. 
Arc. 
Temp. 
Elevation. 
Buoy. 
Dec. 24 
1 .CO. 22 
+ 
+ 
18,3 
19,1 
1,6 
46,6 
4,21 
0,702 
86385,812 
2 5 
1.00.03,7 
18,8 
19,6 
1,622 
47*4 
4 > 3 2 7 
DO55 
86385,782 
26 
0.59.44,9 
18,4 
19,2 
1,6 
48 
4,21 
1,32 
86386,33 
27 
0.59.26,5 
17.7 
18,5 
1,6 
48 
4,21 
1,32 
86387,03 
28 
0.59.08,8 
*9 
19,8 
1,6 
49 
4,21 
I >75 
86386,16 
29 
0.58.49,8 
>• + 0,3496 
+ 6,442 
86392,5673 
18,9 
l 9>7 
1,56 
4 8 >5 
4 . 
1 >535 
86385,835 
3 ° 
0.58.39 
18,6 
19.4 
1,51 
47’5 
3.75 
1, 1 
86385,45 
3 1 
0.58.12,3 
1819. 
18 
18,5 
D 5 
47.5 
3>7 
1. 1 
86386 
Jan. 1 
°- 57 - 54>3 
l 9 
19,8 
i »49 
47 ’S 
3.651 
1,1 
86384,951 
2 
°- 57 - 35>3 
l 9>3 
20,1 
1.4 8 S 
47 
3.627 
0,88 
86384.407 
3 
0.57,16 
. 
TABLE II. 
Clock No. 2, in London ; Barom. mean height 29,88 inches ; Chron. No. 112, 
losing T. per diem. 
1819. 
Clock slow 
of 112. 
Clocks gain. 
Mean 
arc. 
Mean 
temp. 
Correction 
Daily vibra- 
tions. 
Corrections. 
Corrected vi- 
brations. 
Temp. 45°. 
on 112. 
Per diem. 
on 
112. 
on 
Time. 
Arc. 
Temp. 
Elevation. 
Buoy. 
March 
m. s. 
s. 
s. 
s. 
0 
O 
S. 
S. 
s. 
s. 
15 Mid. 
13.26 
+ 
+ 
86 
86 
8 5 
1.69 
45 
4.703 
86489,703 
16 
1 2.0 
84 
84 
83 
1 *73 
50 
4,928 
2,18 
86490,108 
*7 
O 
04 
ON 
> + 0,35 
+ 6,34 
86496,997. 
84 
84 
8 3 
1 -73 
5 ° 
4,928 
2,18 
86490,108 
18 
9.12 
21 Noon 
5 - 40.5 
211,5 
84,6 
83,6 
‘•73 
50 
4,928 
2,18 
86490,708 
