The mining of gold -- Gold placers -- Occurrence -- History of production -- Ancient placers -- Later discoveries -- Hydraulicking and dredging -- Effects of price fixing -- Gold lodes -- Occurrence -- History of production -- Early lode mines -- United States -- Australia -- South Africa -- Canada -- World production -- Processing methods -- By-product gold -- Rising costs of production -- Economics of gold -- The scarcity of gold -- Important factors in gold production -- Geology of the deposit -- Recovery process -- New discoveries -- Effect of price changes -- Future supply of gold -- Official ignorance -- What price gold? -- References for part IV