D, two hundred and fifty miles
west of the Gulf of Carpentaria (Narrative 1). Coarse-grained reddish
quartzose conglomerate and sandstone; resembling the older sandstones of
England and Wales, and especially the mill-stone grit beneath the coal
formation. Fine greyish-white pipe-clay; of which about thirty feet in
thickness were visible, apparently above the sandstone last mentioned.
Coarse-grained, ferruginous sandstone, containing fragments of quartz,
from above the pipe-clay. The appearance of the cliff from which these
specimens were taken, is represented in the view of the bay on the south
of Goulburn Island (volume 1); and a distant head in the view consists of
the same materials.

SIMMS ISLAND, on the west of Goulburn's south Island (Narrative 1) is
composed of a reddish conglomerate, nearly identical with some of the
specimens above-mentioned.

The western side of LETHBRIDGE BAY, on the north of MELVILLE ISLAND,
consists of a range of cliffs like those at Goulburn's Island; the upper
part being red, the lower white and composed of pipe-clay. The western
extremity of BATHURST ISLAND, between CAPE HELVETIUS and CAPE FOURCROY,
is also formed of cliffs of a very dark red colour.

LACROSSE ISLAND, at the mouth of CAMBRIDGE GULF, about one hundred miles
from Port Keats. Reddish, very quartzose sandstone; from a stratum which
dips to the south-east, at an angle of about ten or fifteen degrees.
Micaceous and argillaceous fissile sandstone, of purplish and greenish
hues, in patches, or occasionally intermixed; precisely resembling the
rock of Brecon, in South Wales, and, generally, the old red sandstone of
the vicinity of Bristol and the confines of England and Wales.
Fine-grained thin-slaty sandstone, resembling certain beds of the coal
formation, or of the millstone grit, is found in large masses, under an
argillaceous cliff, on the north side of Lacrosse Island.

The specimens from the interior of Cambridge Gulf are from ADOLPHUS
ISLAND, and consist of reddish and grey sandstone, more or less
decomposed.

VANSITTART BAY, about one hundred and forty miles north-west of Cambridge
Gulf. Reddish quartzose sandstone, or quartz-rock. Indistinct specimens
of greenstone, with adhering quartz; apparently a primitive rock.

PORT WARRENDER, at the bottom of Admiralty Gulf, about forty miles
south-west of Vansittart Bay (Narrative volume 1). Epidote and quartz, in
small crystals confusedly interlaced; apparently from veins,