The prominent mass of land, which stands out from the main, between Cape Naturaliste and Cape Leeuwin, and runs nearly on the meridian for more than fifty miles, seems to have a base of granite, which, at Cape Naturaliste, is said to be stratified.* The same rock also occurs, among Captain King's specimens, from Bald-head in King George's Sound; but nearly on the summit of that hill, which is about five hundred feet high, were Found the ramified calcareous concretions, erroneously considered as corals by Vancouver and others;** but which appear, from Captain King's specimens, to be nothing more than a variety of the recent limestone so abundant throughout these shores.
(*Footnote. Peron volume 1 page 69.)
(**Footnote. Vancouver 1 49. D'Entrecasteaux 2 175. Freycinet 105. Flinders 1 63. See the detailed descriptions hereafter; and Captain King's Narrative volume 1.)
The south coast, and the southern portion of the east coast of Australia, which were surveyed by Captain Flinders, are described in the account of his voyage, and do not come within the object of the present paper.
GEOLOGICAL REMARKS.
1. The rocks, of which specimens occur in the collections of Captain King and Mr. Brown, are the following:
Granite: Cape Cleveland; C. Grafton; Endeavour River; Lizard Island; Round Hill, near C. Grindall; Mount Caledon; Island near C. Arnhem; Melville Bay; Bald-head, King George's Sound.
Various Slaty Rocks:
Mica-State: Mallison's I.
Talc-State: Endeavour River.
Slaty Clay: Inglis' I., Clack I., Percy I.
Hornblende Rock ?: Pobassoo's Island; Halfway Bay, Prince Regent's River.
Granular Quartz: Endeavour River; Montagu Sound, North-west Coast.
Epidote: C. Clinton ?; Port Warrender; Careening Bay.