Mining review . slocation of marine transport and theattendant shortage of fuel have been taken into consideration,the results are satisfactory. The diminution in the output ofcopper has, of course, seriously affected the total value of theStates production for the year, towards which iron ore for thefirst time makes the largest contribution. The value of the ironore produced would have been larger, but for the same inter-fering causes that affected the copper production. Of the non-metallic minerals the production has been, on thewhole, maintained, and the value of the precious opal raised ha
Mining review . slocation of marine transport and theattendant shortage of fuel have been taken into consideration,the results are satisfactory. The diminution in the output ofcopper has, of course, seriously affected the total value of theStates production for the year, towards which iron ore for thefirst time makes the largest contribution. The value of the ironore produced would have been larger, but for the same inter-fering causes that affected the copper production. Of the non-metallic minerals the production has been, on thewhole, maintained, and the value of the precious opal raised hasincreased materially. The Chief Registrar and Recorder has visited Iron Knob andHummock Hill, and prepared an account of the welfare workcarried out by the Broken Hill Proprietary Company in theinterests of its employees. This report supplements those alreadypublished with regard to the similar work that has been carriedout at Port Pirie, Wallaroo, and Moonta. March 27thj 1920. L. KEITH WARD, Director of INDEX. PAGE. Accidents, Mines and Quarries ..... 34 Area held under Mining Acts 10 Assays, School of Mines .34 Assistant Government Geologist—- Reports by 50 Australian Slate Quarry, Willunga . 57 Barytes 14, 90 Barossa, Hundred of, Section 586— Report on 50 Battery Returns 21 Battery Returns (State)—Summary of to 31/12/19 22 Bonus to Employees, Wallaroo and MoontaCo 12,13 Bonus for Discovery of Oil 15, 17 Bonus for Production of Graphite .. 18Bonus for Production of Roofing Slates 19 Bumbumbie 96 Chief Inspector of Mines—^Reports by 57 Chief Registrar of Mines—Report by 98 Coal, Leigh Creek 35 Cornwall CM 97 Copper, Prices of 12, 24 Copper, Notes regarding, for 1919 .. 12 Copper Mining, Localities of 13 Crushing and Cyanide Plants 20 Decennial Returns 8,9 Deloraine 14, 21 Drilling Operations (Government) .. 25 Eastern Lode, Drilling at 25 Emily 14 Fifth Creek Gold Workings 60 Fluor Spar 90 General Notes , 11 Glenloth 14,20 Government Drilling Operat
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