complete.

(*Footnote. See Mr. Koenig's Paper. Philosophical Transactions volume 104
1814 page 107 etc.)

(**Footnote. Captain King informs me that the soundings in this part of
the coast bring up a very fine quartzose-sand like that cemented in the
breccia.)

ROTTNEST ISLAND, about four hundred and fifty miles south of Dirk
Hartog's Island. Indistinct specimens containing numerous fragments of
shells, in a calcareous cement; the substance of these shells has at
first sight the appearance of chalcedony, and is harder than ordinary
carbonate of lime.

The characters of the shells in Captain King's specimens from this place
are indistinct; but the specimens at the Jardin du Roi, which, there is
reason to suppose, have come from this part of the coast, contain shells
of several species, belonging among others to the genera, corbula, chama,
cardium, porcellanea, turbo, cerithium. M. Prevost, to whom I am indebted
for this account, observes that notwithstanding the recent appearance of
the shells, the beds which contain them are stated to occur at a
considerable height above the sea: and he remarks that the aspect of the
rock is very like that of the shelly deposits of St. Hospice, near Nice.

KING GEORGE'S SOUND, on the south coast, east of south from Cape Leeuwin.
Beautifully white and fine quartzose sand, from the sea-beach. Yellowish
grey granite, from Bald-head. Two varieties of a calcareous rock, of the
same nature with that of Dirk Hartog's Island; consisting of particles of
translucent quartzose sand, united by a cement of yellowish or
cream-coloured carbonate of lime, which has a flat conchoidal and
splintery fracture, and is so hard as to yield with difficulty to the
knife. In this compound, there are not any distinct angular fragments, as
in the stone of Dirk Hartog's Islands; but the calcareous matter is very
unequally diffused.

A third form in which this recent calcareous matter appears, is that of
irregular, somewhat tortuous, stem-like bodies, with a rugged sandy
surface, and from half an inch to an inch in diameter; the cross fracture
of which shows that they are composed of sand, cemented by carbonate of
lime, either uniformly mixed throughout, or forming a crust around
calcareous matter of a spongy texture; in which latter case they have
some resemblance to the trunks or roots of trees. A mass, which seems to
have been of this description, is stated to have come from a height of
about two hundred an