J48 
A VOYAGE TO 
[North Coast. 
1802 . 
November. 
turtle at that time. For a similar expedition from the opposite part 
of the South Coast, September, October, and November would seem 
to be most proper. 
From the time of first arriving, to that of quitting Sweers’ 
Island, the range of the thermometer on board the ship was between 
8i° and go°, and on shore it might be 5® to io° higher in the day 
time ; the weather was consequently warm ; but being alleviated by 
almost constant breezes either from sea or land, it was seldom op- 
pressive ; and the insects were not very troublesome. The mercury 
in the barometer ranged between 30,06 and 29,70. It stood highest 
with the winds from the sea, between north-east and north-west; 
and lowest when they blew gently off the land, between south-east 
and south-west, but most so from the latter direction. On the South 
Coast the winds from these points had produced a contrary effect : the 
mercury there stood lowest when the northern winds blew, and 
highest when they came from the southward ; they coincided, how- 
ever, so far, in that the sea winds raised, and the land winds de- 
pressed the mercury, the same as was observed at Port Jackson on 
the East Coast. 
The latitude of Inspection Hill, from several 
single and two double observations, was 17° 8' 15" S. 
Longitude from forty-two sets of lunar distances 
taken by lieutenant Flinders, the particulars 
of which are given in Table III. of the Ap- 
pendix No. I. to this volume, - 139 44 52 E. 
The rates of the time keepers were deduced from morning's 
altitudes, taken with a sextant and artificial horizon at the shore 
under Inspection Hill, from Nov. 16 to 29; and the mean rates dur- 
ing this period, with the errors from mean Greenwich time at noon 
there on the 30th, were as under : 
Earnshaw’s No. 54,3, slow 2 h i& 29", 51 and losing 14", 74 per day. 
520 - 3 52 19, 70 - - 20, 01 
The longitude given by the time keepers, with the rates from 
Upper Head in Broad Sound, on our arrival Nov. 16, was by 
