GOING OF THE CHRONOMETERS. 
VII 
distance less than a geographical mile; an amount so trivial, that it was 
not deemed necessary to pursue its further consideration ; and rates, which, 
at the expiration of four months, had produced so very close an accordance 
with the result of so great a number of lunar observations, were judged to 
require no further correction. 
The navigation of 1819 may be considered to have closed on the 6th 
of September, so far as the going of the chronometers is concerned, since 
the coast, to the westward of Winter Harbour, was laid down entirely by 
longitudes determined in the summer of 1820. 
In Table II. is exhibited an account of the going of the six chronometers 
of the Hecla which were selected for the determination of longitude, from 
the commencement of the voyage to the close of the navigation of 1819. The 
actual daily rate of each chronometer, averaged in weeks, is shewn successively 
on every one of the other five. 
In Table III. is shewn the daily rate (also on a weekly average, and for the 
same period) of the remaining chronometers of the Hecla’s complement, on 
mean Greenwich time, as shewn each day at noon by No. 259, with its correc- 
tion applied for rate and original difference. No. 259 has been selected for this 
purpose, because it is believed to have preserved the most steady and uniform 
rate throughout the season ; the ground of this belief is, that its daily longi- 
tudes with the same unchanged rate, were not found to differ from the mean 
longitude of the six chronometers, so much as two minutes in a single instance 
during the four months, and but very rarely so much as one minute ; this fact 
may be examined by a reference to the Table, closing the abstract of latitudes 
and longitudes determined in 1819, in which the daily longitude by each 
chronometer separately is shewn, as well as by their mean. It is considered 
to afford a presumption of very remarkable steadiness. 
Table IV. contains a statement of the going of the chronometers on mean 
time at Winter Harbour, from the end of September 1819, to the end of 
April 1820. 
During the severest months of the winter, the chronometers were 
suspended within five feet of the cabin stove, where they received as much 
advantage as could conveniently be given them from the moderate fire, 
which the necessary attention to economy of fuel permitted to be kept up. 
