408 PROCEEDINGS OF THE GEOLOGICAL SOCIETY. [Mar. 7, 



phical connexion between them, there is probably a connexion of 

 another kind, which is of far more importance to the elucidation of 

 the past history of New Holland, and this connexion seems indicated 

 by the discovery of actual volcanic products, and the association of 

 gold and animal remains. 



[Specimens of the various strata on Wattle Flat, collected by Mr. 

 Johnstone, Assistant-Gold-Commissioner at Sofala, accompanied this 

 communication. Amongst them are fragments of mammalian bones.] 



5. Notes on the Geology of New South Wales. 

 By the Rev. W. B. Clarke, M.A., F.G.S. 



[In a Letter to Sir R. I. Murchison, V.P.G.S.] 



[Abstract.] 



The author alludes to the regular succession downwards of — 1. Coal- 

 bearing beds ; 2. Rocks with " Lower Carboniferous" or ** Devo- 

 nian?" fossils, and with Coal-plants and Coal ; 3. Metamorphosed 

 grits and fine conglom.erates, derived from granitic and porphyritic 

 rocks, occasionally fossiliferous, and sometimes enclosing calcareous 

 beds. This porphyritic grit and conglomerate the author regards 

 as being referable to Von Humboldt's Lozero of Mexico, which 

 underlies the Gres houiller of Quanaxato*. On the western flanks 

 of the southern part of the New England County there are conglo- 

 merates, referable to the base of the Carboniferous rocks of the flanks 

 of the Liverpool Range, which are associated with Devonian? fossils 

 and altered grits and shales full of Lepidodendron. 4. The great 

 north and south schistose formations, in which the author has found 

 fossils which he assigns with some doubt to the Silurian epoch f. 

 The schists have been broken through, after being metamorphosed, 

 and before the deposition of the superjacent and unconformable grits, 

 hy intrusive porphyry. 



Mr. Clarke also refers to the existence of fossil fish [of which he 

 has sent *' rubbings"] in the upper rocks of Sydney. They have 

 some resemblance to the Permian fish ; and, if they be true indi- 

 cation of the Permian character of the beds, "we are able to show," 

 says the author, *' an unbroken series from the Permian rocks to the 

 representatives of the Old Red(?)." 



* Essai sur le Gisement des Roches (1823), p. 217. 



t [See also Mr. Selwyn's Note on Silurian Fossils from the Schists of Victoria ; 

 Edinb. New Phil. Journ. 1855, No. 1. p. 171.] 



