AUSTEiXASLL. 157 



to the Hunter R. and Hawkesbury Series of Clarke. The tige of the 

 Miocene beds is determined by the presence of fossil leaves, like those 

 in beds of the same age in Victoria. 



YI. Statistics relating to Copper, Silver, and Antimony, pp. 89-94. 

 YII. Prof. Liver sidge. On the Iron Ore and Coal Deposits at Waller- 

 awang, pp. 94-103 {see p. 155). VIII. Statistics of Gem Stones, pp. 

 103, 104. IX. Prof. Liversidge. On the Bingera Diamond Field, 

 ifec, pp. 104-116 {see p. 155). 



X. C. S. Wilkinson. Notes on the Geological and Mineralogical 

 Collection exhibited at the Metropolitan Intercolonial Exhibition, 1875, 

 pp. 117-148. The formations in IS". S. Wales are as follows : — a. Recent. 

 Including deposits now accumulating, and of economic importance from 

 the predominance of alluvial gold and stream-tin. — h. Pleistocene. 

 Alluvial flats and terrace-like plateaux at various elevations along the 

 course of rivers and creeks, deposited whilst the present valleys were 

 being eroded. These important Eecent drifts are equally rich in gold 

 and tin, and have yielded the remains of gigantic Marsupials and of 

 the Moa. — c. Pliocene. After the deposition of the Miocene beds the 

 Australian continent was submerged, and marine auriferous gravels and 

 clays deposited (L. Pliocene). Emergence and denudation followed, 

 resulting in the present system of valleys and accumulation of fluvia- 

 tile drifts (IJ. Pliocene). At the close of this sub-period volcanic out- 

 bursts occurred, filling many of the valleys, and forming the basaltic 

 downs. These old buried river- channels now form the "deep-leads;" 

 and from them have been obtained remains of trees, &c. — d. L. Miocene. 

 Drift deposits at elevations of 2000 to 3000 ft. above the sea-lcvcl, 

 containing leaves like those of the Bacchus Marsh leaf-beds of Victoria. 

 They exceed the other Tertiary alluvial deposits in the richness of their 

 tin-ore. — e. Mesozoic. A coal-bearing'series on the Clarence River, with 

 fossil plants allied to Tceniopteris and Pecopteris, perhaps the equivalents 

 of the Mesozoic coal strata of Victoria. — -/. Pcdceozoic. With the follow- 

 ing subdivisions : — AVianamatta and Hawkesbury series, without work- 

 able coal-seams ; U. Coal Measures, with Glossopteris, Phyllotheca, &c., 

 and containing at least IG coal-seams ; U. Marine beds, with Paloeozoic 

 fossils ; L. Coal Measures of Anvil Creek, with Glossopteris, &c. ; L. 

 Marine beds, with Palaeozoic fossils ; Lepidodcndron beds, below the 

 L. Marine series of the Hunter district; Devonian strata, traversed 

 by thin quartz-veins in the llydal and Wallerawang districts, and con- 

 taining a copious fauna ; the llydal beds arc over 10,000 ft. thick. — 

 g. Igneous lioclcs. Granites of various ages, but none probably younger 

 than Carboniferous. Many are intiusive, and others, doubtless, meta- 

 morphic. Gold is found in the alluvial drift derived from these granites. 

 Concludes with remarks on the specimens of gold, copper, tin, iron, 

 marble, &c. in the collection. 



XI. Rev. W. B. Clarke. Remarks on the Sedimentary Formations 

 of New South Wales, &c., pp. 149-20G ; 2 vertical sections (also pub- 

 lished separately, see p. 148). XII. J. Mackenzie. Supplementary 

 Report of the Examiner of Coal-fields, pp. 207-247, with 5 plans, 

 7 longitudinal sections, 10 sheets of vertical sections : also illustrated 



