CAPE GRAFTON, about one hundred and eighty miles west of north from Cape Cleveland.  Close-grained grey and yellowish-grey granite, with brown mica.  A reddish granitic stone, composed of quartz, felspar, and tourmaline.

ENDEAVOUR RIVER, about one hundred miles west of north from Cape Grafton.  Grey granite of several varieties; from a peaked hill under Mount Cook and its vicinity.  Granular quartz-rock of several varieties:  and indistinct specimens of a rock approaching to talc-slate.

LIZARD ISLAND, about fifty miles east of north from Endeavour River.  Grey granite, consisting of brown and white mica, quartz, and a large proportion of felspar somewhat decomposed.

CLACK ISLAND, near Cape Flinders, on the north-west of Cape Melville, about ninety miles north-west of Lizard Island.  Smoke-grey micaceous slaty-clay, much like certain beds of the old red sandstone, where it graduates into grey wacke.  This specimen was taken from a horizontal bed about ten feet in thickness, reposing upon a mass of pudding-stone, which included large pebbles of quartz and jasper; and above it was a mass of sandstone, more than sixty feet thick. (Narrative volume 2.)

SUNDAY ISLAND, near Cape Grenville, about one hundred and seventy miles west of north from Cape Melville.  Compact felspar, of a flesh-red colour; very nearly resembling that of the Percy Islands, above-mentioned.

GOOD’S ISLAND, one of the Prince of Wales group, about latitude 10 degrees, thirty-four miles north-west of Cape York.  The specimens, in Mr. Brown’s collection from this place, consist of coarse-slaty porphyritic conglomerate, with a base of greenish-grey compact felspar, containing crystals of reddish felspar and quartz.  This rock has some resemblance to that of Clack Island above-mentioned.

SWEER’S ISLAND, south of Wellesley’s group, at the bottom of the Gulf of Carpentaria.  A stalactitic concretion of quartzose sand, and fine gravel, cemented by reddish carbonate of lime; apparently of the same nature with the stem-like concretions of King George’s Sound:  (See hereafter.) In this specimen the tubular cavity of the stalactite is still open.

The shore, in various parts of this island, was found to consist of red ferruginous matter (Bog-iron-ore ?) sometimes unmixed, but not unfrequently mingled with a sandy calcareous stone; and in some places rounded portions of the ferruginous matter were enveloped in a calcareous cement.

BENTINCK ISLAND, near Sweer’s Island.  A granular compound, like sandstone recomposed from the debris of granite.  Brown hematite, enclosing quartzose sand.

PISONIA ISLAND, on the east of Mornington’s Island, is composed of calcareous breccia and pudding-stone, which consist of a sandy calcareous cement, including water-worn portions of reddish ferruginous matter, with fragments of shells.

NORTH ISLAND, one of Sir Edward Pellew’s group.  Coarse siliceous sand, concreted by ferruginous matter; which, in some places, is in the state of brown hematite.  Calcareous incrustations, including fragments of madrepores, and of shells, cemented by splintery carbonate of lime.