199 
as determined by chronometers at sea. 
In the other chronometers the alteration was less sudden, 
but was ultimately not less considerable ; and they were 
several days on shore before they acquired a steady rate, as 
will appear by the following table of their rates, during the 
interval of the respective dates. 
Table of Rates of Chronometers immediately when landed , 
August gth, 1818. 
No. 1 . Earnshaw. 
2 . Arnold. 
4. Barraud. 
5 . Arnold. 
Clock. 
August 9 
/✓ 
// 
// 
✓/ 
+ 12,0 
—0,2 
+ 8,1 
— - 33>5 
1 1 
+ 10,2 
O, 
+ 7>9 
— 3 + 2 
12 
—36,2 
II 
16 
+ 7 » 9 8 
— I,8S 
+ 0,8 
+ 70,60 
+ 6,2 
— 5 »i 
+ 7 >i 
— 4°>9 
+ 69,03 
20 
+ 5> 6 3 
— S*2 
+ 2,8 
— 37>7 
+ 69,12 
23 
+ +02 
6,14 
+ 4>3 
—41,5 
+ 69,29 
26 
The rates from August 12 to 26, were determined by the 
sun's transit, and those from August 9th (the day on which 
the chronometers were landed) to the 12th, by a comparison 
with the clock, supposing its mean rate -\-6gfg t as no obser- 
vation occurred during this interval ; and by this table it 
appears, that the chronometers when landed were rapidly 
diminishing their gaining rates, and increasing their losing 
ones. In the others the effect was almost immediate. 
The clock and chronometers were likewise landed upon 
a small island in Fair Haven, on the north coast of Spitzbergen, 
on the 30th June ; and, as the same circumstances occurred, 
it will be needless to detail them. 
The following table is intended to show the difference 
