Reports of the Inspectors of Mines List of Mines 1873-1874.
Reports of the Inspectors of Mines to Her Majesty’s Secretary of State for the Year 1873, p.28.
Reports of the Inspectors of Mines List of Mines 1873-1874.
Reports of the Inspectors of Mines to Her Majesty’s Secretary of State for the Year 1873, p.28.