r part of the cliffs is
argillaceous and stratified, splitting in layers of different
thicknesses, from that of a shilling to two or three feet; and the strata
dip to the westward, about 15 deg.. On breaking some pieces out of the
cliffs, I found them curiously marked with the representation of flowers
and trees, owing, as I am told, to manganese or iron ore inserting itself
partially into the fissures. The layers are of a reddish colour,
resembling flat tiles, and might, I conceive, be used as such, almost
without any preparation; there are enough of them to cover a whole town,
and the sand stone at the top of the cliffs is equally well calculated
for building the walls of the houses.
The upper surfaces of these islands are barren; but in the vallies, down
which ran streams of water at this time, there is a tolerable soil. One
of these vallies, at the south end of Cotton's Island, might be made a
delightful situation to a college of monks, who could bear the heat of
the climate, and were impenetrable to the stings of musketoes. Here grew
the wild nutmeg, in abundance, the fig which bears its fruit on the stem,
two species of palm, and a tree whose bark is in common use in the East
for making ropes; besides a variety of others, whose tops were overspread
with creeping vines, forming a shade to the stream underneath. But this
apparently delightful retreat afforded any thing rather than coolness and
tranquillity: the heat was suffocating, and the musketoes admitted not of
a moment's repose.
Upon Pobassoo's Island, near the stream of water at the back of the
beach, Mr. Good, the gardener, planted four of the cocoa nuts procured
from the Malays; and also some remnants of potatoes which were found in
the ship.
The _latitude_ of Malay Road, from two not very satisfactory
observations, was 11 deg. 533/4' S.
_Longitude_ by the survey from Caledon Bay 136 deg. 27' E.
From observations made on shore in the artificial horizon, the
time-keeper No. 520 was differing from its Caledon-Bay rate, 15.4" of
longitude per day, to the east, but No. 543 only 9.8"; and when the
longitude of this last is corrected by the proportion afterwards found
necessary, it will agree with the survey to less than half a mile.
No observations were taken for the _variation_ of the compass, but I
judge it to have been about 1 deg. east, when not affected by any local
attraction. Near the north-east end of Cotton's Island, and at the
south-west p
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