in the length of the pendulum vibrating seconds , 
443 
Shanklin Farm, 10th May, 1S19, A. M, O’s U. L. 
Chronometer. 
Level. 
Readings, &c. 
h. m. s. 
8.39.32 
8.41. 3 
8.42.56' 
8.44.44 
+ 18 
+ 11 
+ 12 
+ 13 
—15 
— 19 
—19 
—17 
0 1 11 
First Vernier - 204.40.35 
Second - 20 
Third - 10 
Fourth - 30 
Mean - - 8.42. 3,75 
True time - 8.37-24,90 
+ 54 
—70 
Mean - - 204.40.23,7 
Level - — 19,2 
Index - - + 13,0 
Chron. fast - 4.38,85 
' 
4) 204.40.17,5 
(+51-70) " 
Observed Z. D. - 51.10.4,35 
Ref. and Parall. + 1. 5,0 
Semidiam. - + 15.51,4 
True Z. D. - 51.27. 0,75 
Shanklin Farm, 10th May, A. M. O’s U. L. 
Chronometer. 
Level. 
Readings, &c. 
h. m. s. 
8.50 33 
8.5-2.14 
8.56.23 
8.5757 
+ 20 
+ 17 
+ 22 
+ 14 
— 10 
— 13 
— 5 
— 14 
0 1 n 
First Vernier - 197.31.50 
Second - 35 
Third - 30 
Fourth - - 50 
Mean - - 8.54 16,75 
True time - 8.49.36,90 
+ 73 
—42 
Mean - - 197.31.41,2 
Level - - + 37,2 
Index - - + 13,0 
Chron. fast - 4.39,85 
4)197-32.31,4 
Observed Z. D. - 49.23. 7,85 
Ref. and Parall. + 1. 1,2 
Semidiam. - + 15.51,4 
(4.73 — 42) " // 
V — , yO A — 1-3? O 
True Z. D. - 49,40. 0,45 
3 M 
mdcccxix 
