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.