than fifteen feet. The variation of the
compass was 9 degrees 5 minutes East, off Cape Clinton, but at Entrance
Island, according to Captain Flinders, it was 7 degrees 40 minutes East.
NORTHUMBERLAND ISLANDS. In the direction of North 8 degrees East
(magnetic) and five miles and a half from the 3rd Island, is a low rock
which, at high water, is very little above the surface of the sea; it is
very dangerous because it is in the direct track of vessels steering
towards the Percy Isles. It escaped the observation of Captain Flinders.
In the direction of South 42 degrees West (magnetic) and ten miles from
the west end of Percy Island Number 1, are some rocks, but I am not aware
whether they are covered: they were seen by Lieutenant Jefferies in 1815.
Another patch of dry rocks was seen by me from the summit of a hill at
the west end of Percy Island Number 1, whence they bore South 60 degrees
West (magnetic) and were supposed to be distant about eight or nine
miles. The variation of the compass here is between 7 and 8 degrees East.
The PERCY ISLES have also been described by Captain Flinders; the bay at
the west end of Number 1 is of very steep approach and not safe to anchor
in, excepting during a south-east wind: the anchorage at Number 2, inside
the Pine Islets, is bad, since the bottom is rocky; the ground is,
however, clearer more to the southward; on the whole this anchorage is
not insecure, since there is a safe passage out either on the north or
south sides of the Pine Islets. Wood may be procured with facility, and
water also, unless the streams fail in the dry season. Captain Flinders
was at these islands at the latter end of September, and found it
abundant. The flood-tide comes from the north-east; at the anchorage in
the channel, between the pine islets and Number 2, the flood sets to the
south, and the ebb to the north; the maximum rate was one and a quarter
knot. High water occurred at the latter place two hours and a half before
the moon's passage; but on the following day did not precede it more than
one hour and a half. Captain Flinders mentions high water taking place on
shore at eight hours after the moon's passage. (Vide Flinders volume 2
page 82.) The tide rose twelve feet when the moon was thirteen days old.
The north-west end of Number 1 is in latitude 21 degrees 44 minutes 50
seconds, longitude 150 degrees 16 minutes 40 seconds; south-west end of
Number 2 is in latitude 21 degrees 40 minutes 50
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