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.

Quartzose Conglomerates, and ancient Sandstones:  Rodd’s Bay; Islands of the north and north-west coasts; Cambridge Gulf; York Sound; Prince Regent’s River.

Pipe-clay:  Melville Bay; Goulburn I.; Lethbridge Bay.

ROCKS OF THE TRAP FORMATION.

Serpentine:  Port Macquarie; Percy Isles.

Sienite:  Rodd’s Bay.

Porphyry:  C. Cleveland.

Porphyritic Conglomerate:  C. Clinton, Percy I., Good’s I.

Compact Felspar:  Percy I., Repulse Bay, Sunday Island.

Greenstone:  Vansittart Bay, Bat I., Careening Bay, Malus I.

Clinkstone:  Morgan’s I., Pobassoo’s I.

Amygdaloid, with Chalcedony:  Port Warrender; Half-way Bay; Bat Island;
Malus I.

Wacke ?:  Bat Island.

...

Recent calcareous Breccia:  Sweer’s Island, N. coast.  Dirk Hartog’s and
Rottnest Islands, etc., West coast.  King George’s Sound, South coast.

The only information that has been published respecting the geology of New Holland, besides what is contained in the Voyages of Captain Flinders and Commodore Baudin, is a slight notice by Professor Buckland of some specimens collected during Mr. Oxley’s Expedition to the River Macquarie,* in 1818; and a brief outline of a paper by the Reverend Archdeacon Scott, entitled A Sketch of the Geology of New South Wales and Van Diemen’s Land, which has been read before the Geological Society.** On these authorities, the following may be added to the preceding list of rocks: 

Limestone, resembling in the character of its organic remains the mountain limestone or England:  Interior of New Holland, near the east coast; Van Diemen’s Land (Buckland; Prevost manuscripts; Scott).

The Coal-formation:  East coast of New Holland; Van Diemen’s Land. 
(Buckland-Scott.)

Indications of the new red-Sandstone (Red-Marl) afforded by the occurrence of Salt:  Van Diemen’s Land. (Scott.)

Oolite:  Van Diemen’s Land. (Scott.)

(Footnote.  Geological Transactions volume 5 page 480.)

(**Footnote.  Ann. of Phil.  June 1824.  I am informed that Mr. Von Buch also has published a paper on the rocks of New Holland; but have not been so fortunate as to meet with it.