soo 
Mr. Fisher on the errors in longitude 
between the rates on board the ships and what they would 
have been had they been on shore. 
m 
Chronometers. 
Error, Greenwich time. 
Difference. 
Interval. 
Mean Rates 
at Sea. 
Mean Rates 
on Shore. 
No. I. Earnshaw. 
/ It 
April 11,+ 7-4°.i 
Aug. 25, + 26.32.2 
/ /✓ 
+ I8.52 I 
days. 
136 
// 
+ 8.0 
II 
+ 3 8 
2. Arnold. 
/ II 
April 11, — 0.42 
Aug. 25,-4.15 
/ // 
~ 3-33 
136 
1 
// 
—*•5 
* 
— 5.2 
3. Arnold. 
/ II 
May 7, —1.44 
July 2, —3.36 
/ ✓/ 
1.52 
56 
✓/ 
— 2.0 
// 
— 6.5 
4. Barraud. 
/ ✓/ 
April 1, — 0. 1 
Aug. 25,+ 5.55.5 
* v 
+ 5-56-5 
I46 
// 
+ 2.5 
// 
+ 1.2 
5. Arnold. 
/ // 
April 15, —0.38 
Aug. 25, — 28.48 
/ n 
— 28.10 
I32 
// 
— 12.8 
II 
22.4 
6. Earnshaw. 
. 1 " 
April 1 1, + 1. 1 3 
Aug. 25, + 0. 2.2 
✓ // 
— 1.10.8 
i 
136 
// 
—0.5 
II 
— 0.93 
7. Pennington. 
/ // 
April 11, + 0. 53 
Aug. 25, + 13.57 
/ // 
+13-3-5 
136 
// 
+ 5 - s 
— 0.63 
8. Arnold. 
' / // 
April 13, — 0.24 
Aug. 25,-15.53.5 
/ " 
+ 16.17.5 
*34 
// 
+ 7.3 
II 
— 2.5 
i 9. Baird. 
1 
/ // 
April 15, + 0.25.1 
Aug. 25, + 5.12.5 
/ // 
+ 4-47-4 
*32 
// 
+ 2.2 
It 
— 5.15 
