44)4 Capt. Kater’s experiments for determining the variation 
Shanklin Farm, 10th May, A.M. O’s L. L. 
Chronometer, 
Level. 
Readings, &e. 
h.m. s. 
9.3. 1 
9.4. 9 
v 9.5.37 
9.6.36 
+ 21 
+ 9 
+ 21 
+ 20 
— 6 
—20 
— 6 
— 6 
° II 
First Vernier - 191 30. 0 
Second - - 2:*.30 
Third - - 29.40 
Fourth - - 30. 0 
Mean - - 94.50,75 
True time - 9.0.10 40 
+71 
—38 
Mean - - 191.29.47,5 
Level - - + 39,6 
Index - + 13,0 
Chron. fast. - 4.40,35 
4)191.30.40,1 
(+71—38) « „ " 
Observed Z. D. - 47.52.40,05 
Ref. and Parall. + 58,5 
Semidiam. - + 15.51,4 
' ’ '■ 0 A'*;* — 
2 -r 
True Z. D, - 48. 9.30,0 
