Australian Precious Opal

📒 "We wish to extend our sincere thanks to. the following people who have been of assistance during the preparation of this book: Bert Adam, manufacturing jeweller, Melbourne; Mrs Maxine Beyerle, R.A.C.V.; Bruce M. Bowles, commercial opal cutter, Melbourne; Des Burton, The Quilpie Pharmacy; P. J. Darragh, CSIRO; B. G. Dawson, CSIRO; D. Donaldson, Мое, Victoria; A. Gaskin, CSIRO; M. Hudson, Dundas, New South Wales; Mrs Lee Ireland, Yowah opal field; Mr and Mrs Morris, and Glen Morris, Eulo Queen Hotel, Eulo; Mrs O. Philps, Tintenbar; D. Roder, opal dealer, Andamooka; Dr J. V. Sanders, CSIRO; G. Victor, Barcoo Shire Clerk; Mike Headberry, John H. Mules, the Opal Mine Melbourne; Smith Bros, and Mrs J. R. Phillips of Tooraweenah; Mr A. Wigley for photography. We would also like to thank the following departments and organizations for their valuable assistance: Commonwealth Depart­ments of Air, Civil Aviation, National Development; Bureau of Mineral Resources; CSIRO; State Departments of Mines in New South Wales, Northern Territory, Queensland, South Australia, Tasmania, Victoria, Western Australia; the N.R.M.A., R.A.C.V., R.A.C.Q.; Government Tourist Bureaux of New South Wales, the Northern Territory, Queensland, Western Australia; Australian Press Cuttings, Melbourne". DOUGLAS M. STONE and ROBERT A. BUTT