List of Illustrations List of Tables Preface Acknowledgements General Introduction Section 1 - The Mineral Statistics c. 1850-1920 (i) Introduction (ii) Mining in Cornwall (iii) Mining in Devonshire (iv) An Overview of the Two Counties (v) Tables Section 2 - Output Data before and after the Mineral Statistics : Stannary, Ticketing and Aggregate Returns (i) The Eighteenth Century (ii) The Twentieth Century (iii) The Future (iv) Tables Section 3 - The Duchy of Cornwall Returns (i) Introduction (ii) Evolution (iii) The Duchy's Role in South West Mining (iv) Reform of the Coinage (v) Income from Mining and Minerals (vi) The Duchy as Mineral Owner (vii) Clay and Stone Quarrying (viii) Coal Mining (ix) Conclusion (x) Tables Section 4 - Mining Companies and their Personnel c. 1850-1920 (i) Sources of the Data (ii) Investigation of the Data Conclusion Appendices A1 The General State of the Copper Mines in Cornwall for Seven Years ending 31 December 1789 A2 Mining Material Costs and Copper Ore Prices 1791-1798 A3 The Financial Condition of the Cornish Copper Mines 1792-1798 A4 Biographical Notes on Mine Managers Bibliography of mine-related books and articles The CD: Description of the Contents and User's Manual Notes Index of Mine Names.