BY W. N. BENSON. 595 



deposits that occur beside the carbonated serpentine, and are the 

 result of the same agencies of change. The gold is chiefly partly 

 free, but largely in the pyrites. ("Battery test" on separated 

 pyrites, 20oz., 15dwt. per ton, according to local report). 



(e)In Tertiary drift mined by hydraulic sluicing, from the Sheba 

 and Mount Ephraim gravels. 



(/)In high-level river-gravels (sluiced). 



(g)In the present river-gravels, won by dredging. 



Scheelite occurs in small quantities in most of the above modes 

 of occurrence, but of these, only the first two have yielded payable 

 amounts. It forms lenticular bunches in claystones, associated with 

 a little quartz. Stibnite occurs near Nundle, in a brecciated fissure- 

 vein in clayshales. Chromite forms large segregations in the ser- 

 pentine, particularly on Chrome Hill, behind Bowling Alley Point 



The white marble does not form large enough masses, and is too 

 difficult of access for economical working; the red marble is in 

 greater quantity, takes a good polish, and is easy of access. Zircons 

 and sapphires have been found in interbasaltic gravels, but are 

 rarely of good quality. 



BIBLIOGRAPHY, 

 Additional to the References cited in Part i. 



25. Wilkinson, C. S.— Ann. Rept. Dept. Mines N.S.W., 1885, pp. 132-136. 



26. Stonier, G. A.— Ibid., 1892, p. 127. 



27. Carne, J. E. — "The Tin-Mining Industry of New South Wales." 



Second Edition. Geol Surv. of N.S.W. : Mineral Resources, No. 



28. Lacroix, A. — "Le Granite de Pyrenees et ses Phenomenesdu Contact." 



2me. Memoir, Bull. Carte Geol. de France, No. 71, p. 60. 



29. Anderson, C. — Records of the Australian Museum. Vol.v,, p. 133. 



30. Pittman, E. F.— " Mineral Resources of New South Wales." 1901, 



p. 56. 

 81. Weinsohenk, E. — " Beitrage zur Petrographie der ostlichen Central 

 Alpen, speciell des Gross Venedigerstockes." Abhandlung der Kgl. 

 Bayr. Akad. der Wiss., 1893, p.660. 



32. Andrews, E. C. — "The Geographical Unity of Eastern Australia." 



Journ. Proc. Roy. Soc. N. S. Wales, 1910, pp. 469-471. 



33. Harker, A. — " The Natural History of Igneous Rocks," p. 53. 



