24 Dr. Fitton on the Geology of' Australia. 



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, er- 

 roneously considered as corals by Vancouver and others f; but 

 which appear, from Captain King's specimens, to be nothing 

 more than a variety of the recent limestone so abundant 

 throughout these shores. 



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 Re?narks. 



I. The rocks, of which specimens occur in the collections 

 of Captain King and Mr. Brown, are the following : 



Granite Cape Cleveland; C.Grafton; En- 

 deavour River ; Lizard I. ; 

 Round Hill, near C. Grin- 

 dall ; Mount Caledon ; Island 

 near C. Arnhem ; Melville 

 Bay; Bald-head, K. George's 

 Sound. 

 Various Slaty Rocks, 



Mica-Slate . . . Mallison's I. 

 Talc-Slate . . . Endeavour River. 

 Slaty Clay . . . Inglis's I., Clack I., Percy I. 

 Hornblende Rock ? . Pobassoo's Island; Half-way 

 Bay, P.-Regent's River. 

 Granular Quartz .... Endeavour River ; Montagu- 

 Sound, North-west Coast. 

 Epidote . . . . C. Clinton?; Port Warrender ; 



Careening Bay. 

 Qiiartzose Conglomerates, \ Rodd's Bay; Islands of the north 

 and ancient Sandstones J and north-west Coasts ; Cam- 



bridge Gulf; York Sound ; 

 P.-Regent's River. 

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



Lethbridge Bay. 



Rocks of the Trap Formation. 

 Serpentine Port Macquarie ; Percy Isles. 



* Peron, vol. i. p. 69. 



% Vancouver, i. 49. D'Entrecasteaux, ii. 175. Freycinet, 105. Flin- 

 ders, i. 63. — See the Detailed Descriptions, hereafter; and Captain King's 

 Narrative, vol. i. p. \2. 



Sienite 



