_twenty-seven_ sets of distances taken whilst a prisoner there, I made
it, when corrected for the errors of the tables, 57 deg. 29' 57" east.

In appreciating the degrees of accuracy to which a small or larger number
of lunar distances may be expected to give the longitude, I suppose the
observer to be moderately well practised, his sextant or circle, and time
keeper to be good, and his calculations to be carefully made; and it is
also supposed, that the distances in the nautical almanack are perfectly
correct. As, however, there may still be some errors, notwithstanding the
science and the labour employed to obviate them, it cannot be too much
recommended to sea officers to preserve all the data of their
observations; more especially of such as may be used in fixing the
longitudes of places but little, or imperfectly known. The observations
may then be recalculated, if requisite; the corrections found to be
necessary may be applied; and the observer may have the satisfaction of
forwarding the progress of geography and navigation, after having
contributed to the safety of the ship, and benefit of the particular
service in which he may happen to have been engaged.

The following tables, set out in the book, are not reproduced in this
text version of _A Voyage to Terra Australis_--refer to the _html_
version, available from http://gutenberg.net.

Table I. (Reference from Chapter III., "_Longitude_ from thirty-one sets
of distances of the sun east and west of the moon, of which the
particulars are given in Table I. of the Appendix to this volume")
LONGITUDE OF THE OBSERVATORY IN PRINCESS ROYAL HARBOUR, KING GEORGE'S
SOUND

Table II. (Reference from Chapter III, "The _longitude_ from sixteen sets
of distances of the sun east and west of the moon, of which the
individual results are given in Table II. of the Appendix to this
volume")
LONGITUDE OF THE SOUTH POINT OF LUCKY BAY, ARCHIPELAGO OF THE RECHERCHE

Table III. (Reference from Chapter V., "_Longitude_ of the point, deduced
from twenty-two sets of distances (see Table III of the Appendix to this
volume)")
LONGITUDE OF THE ANCHORAGE IN FOWLER'S BAY

Table IV. (Reference from Chapter VI., "The _longitude_, from thirty sets
of distances of the sun and stars from the moon (see Table IV. of the
Appendix to this volume)")
LONGITUDE OF THE TENTS, AT THE HEAD OF PORT LINCOLN

Table V. (Reference from Chapter IX., "Point Nepean is in _latitude_ 38 deg.
18' south. The _l