s in the middle
of the day, and 60 degrees at night, on board the ship, and the general
course of the wind as follows, viz.

About sunrise, or sometimes a little before that, a breeze springs up
between South and South-South-East and draws to the eastward as the sun
rises, rapidly increasing in strength, and between 8 and 11 A.M. often
blows a fiery breeze; towards noon it moderates, and rarely lasts until 2
P.M., after which there is a light breeze from North-East which at times
reaches to north; the nights are mostly calm, or a light breeze from the
south-westward; at the full and change of the moon, we found the
south-easterly winds stronger than at other times; dews at times very
copious.

All this part of the coast is subject to the effects of mirage, by which
its outline is at times very much distorted, but generally speaking it
ceases with the strength of the breeze, and as the sun attains a little
altitude. When the effects of mirage was observed in the morning, I
noticed that the winds were much lighter throughout the day, than usual.

During this part of the year, the atmosphere is clear, with a cloudless
sky, and the coast is exempted from the violent East-South-East squalls,
that are of frequent occurrence, while the sun is in the southern
hemisphere, and the land consequently very much heated.

Towards the latter end of August, and in September, the winds are not
quite so regular, and there are occasional intervals of two or three days
of westerly winds.

That part of the North-West coast between the North-West Cape, and the
116th degree of east longitude, seems to be subject to westerly winds at
all times of the year. The prevailing southerly winds that blow along the
west coast, appear to draw round the Cape, and follow the direction of
the land. Between April and October (when the easterly monsoon is blowing
to the northward) they are generally to the southward of west, or between
that point and South-West, but during the westerly monsoon between West
and North-West.

Upon getting to the westward of the North-West Cape, the wind becomes
more southerly, and draws to the eastward of south as the distance from
the land increases, and will be found varying between South-South-East
and East-South-East, generally speaking as far south as the parallel of
30 degrees of south latitude, after which it is mostly to the westward of
south, so that ships making a passage to the southward, along the west
coast o