The tides were then neaped, and the
remark made by Captain Cook, that 'they had only one high tide in
twenty-four hours' seemed to apply in this bay; for, although the sloop
was got up as high as the strength of the crew would admit, yet she
righted a full hour and a half before the night tide had done flowing,
and shortly after one man haled her off. The superior rise of the night
tide was well known, and advantage taken of it, at Port Jackson: it also
rose the highest at Western Port, round the southern promontory of New
South Wales. The time of high-water in the river preceded the moon's
passage over the meridian by two hours and a half, and Mr. Flinders did
not think the highest rise of the tide was more than seven, or less than
five, feet.
On Wednesday the 31st, having a moderate breeze at S by W with fine
weather, they got under weigh with the weather tide, and beat out of the
river. Having passed fifteen days in Glass-House Bay, Mr. Flinders was
enabled to form his judgment of it.
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