ning of the 3rd
the wind veered to the westward, and the mercury began to rise, the
weather also became more moderate, and gradually fine.

On the 8th of the same month, the barometer was 30.05 at 8 P.M. with fine
weather, wind South-East by East, it then commenced to fall, and at 8
P.M. on the 9th was 29.80, and blowing a heavy gale at South-East, which
continued all night, and until 8 P.M. on the 10th, at which time it
became more moderate, and the barometer began to rise.

What a different effect these gales had on the barometer; that from the
North-West causing the mercury to fall nearly 6-tenths, whereas, the
last, from South-East only lowered it 2-tenths, and 5-hundredths; they
were of equal strength and duration, and both accompanied by heavy rain.

...

ON THE NORTH-WEST COAST OF AUSTRALIA.

The great extent of the North-West coast of Australia, lying as it does
between the parallels of 12 and 22 degrees of south latitude, no doubt
subjects it to a variety of winds and weather, that is not experienced on
the north coast; although, on that part of it north of the parallel of 15
degrees, there is probably much similarity.

As I cannot speak with certainty of the winds and weather that prevail on
this extent of coast, at all seasons of the year, the following remarks
will be confined to such portions of it as were visited by the Beagle,
and will apply only to the particular seasons in which she was employed
there.

To the eastward of the meridian of 123 degrees east longitude, and at a
short distance from the land, the east and west monsoons will be found
regular; but the easterly monsoon is very light to the southward of 13
degrees latitude.

Between Clarence Straits and Cambridge Gulf, and during the months of
September, October, November, and December, the wind during the day is a
seabreeze between North-West and West. In September, and until the middle
of October, we found the wind as follows: About sunrise, a light breeze
sprang up from South-East or East which gradually drew to the northward
towards the middle of the day, in the afternoon, a seabreeze from
North-West or west, becoming light towards sunset, but freshening again
soon after that, and blowing a moderate and pleasant breeze between
North-West and South-West all night.

During the latter part of the period (November and December) the winds
were more constantly from the West or West-North-West, blowing from that
quarter throughout the twe