The _latitude_ of our anchorage, from the mean of three meridian
altitudes to the north, was 23° 29' 34" south.

_Longitude_ from twenty-four sets of distances of the sun and moon, the
particulars of which are given in Table I. of Appendix No. I. to this
volume, 151° 0' 28"; but from fifty other sets, reduced by the survey
from Broad Sound, the better longitude of the anchorage is 150° 58' 20"
east.

According to the time keepers the longitude would be 150° 57' 43"; and in
an interval of six days, they were found to err no more than 5" of
longitude on the Port-Jackson rates.

From three compasses on the binnacle, lieutenant Flinders observed the
_variation_ 6° 48', when the ship's head was north, and 5° 47' when it
was south-south-east. This last being reduced to the meridian, the mean
of both will be 6° 47' east, nearly the same as in Bustard Bay; but 2°
less than was observed off Gatcombe Head. At the different stations round
Keppel Bay whence bearings were taken, the variation differed from 5° 10'
to 6° 30' east.

Whilst beating off the entrance, I had 7° 52' east variation, from
azimuths with the surveying compass when the head was N. W., and from an
amplitude, with the head N. by W., 6° 54'; the mean reduced to the
meridian. will be for the outside of the bay 6° 16' east.

Captain Cook had 7° 24' near the same situation, from amplitudes and
azimuths observed in 1770, with the Endeavour's head W. N. W.

The rise of _tide_ in the entrance of Keppel Bay seems to vary at the