so the aspect of the trap-formation. The
strata in Lacrosse Island, at the entrance of the Gulf, rise toward the
north-west, at an angle of about 30 degrees with the horizon: their
direction consequently being from north-east to south-west.

(*Footnote. I use the term Old Red Sand Stone, in the acceptation of
Messrs. Buckland and Conybeare, Observations on the South Western Coal
District of England. Geological Transactions Second Series volume 1.
Captain King's specimens from Lacrosse Island are not to be distinguished
from the slaty strata of that formation, in the banks of the Avon, about
two miles below Clifton.)

From hence to Cape Londonderry, towards the south, is an uniform coast of
moderate elevation; and from that point to Cape Leveque, although the
outline may be in a general view considered as ranging from north-east to
south-west,* the coast is remarkably indented, and the adjoining sea
irregularly studded with very numerous islands. The specimens from this
tract consist almost entirely of sandstone, resembling that of Cambridge
Gulf, Goulburn Island, and the Gulf of Carpentaria; with which the
trap-formation appears to be associated.

(*Footnote. The large chart Sheet 5 best shows the general range of the
shore, from the islands filling up the inlets.)

York Sound, one of the principal inlets on this part of the coast, is
bounded by precipitous rocks, from one to two hundred feet in height; and
some conical rocky peaks, which not improbably consist of quartz-rock,
were noticed on the eastern side of the entrance. An unpublished sketch,
by Captain King, shows that the banks of Hunter's River, one of the
branches of York Sound, at seven or eight miles from its opening, are
composed of sandstone, in beds of great regularity; and this place is
also remarkable for a copious spring of fresh water, one of the rarest
phenomena of these thirsty and inhospitable shores.*

(*Footnote. Narrative 1.)

The most considerable inlet, however, which has yet been discovered in
this quarter of Australia, is Prince Regent's River, about thirty miles
to the south-west of York Sound, the course of which is almost
rectilinear for about fifty miles in a south-eastern direction; a fact
which will probably be found to be connected with the geological
structure of the country. The general character of the banks, which are
lofty and abrupt, is precisely the same with that of the rivers falling
into York Sound; and the level of th