Act of Parliament, 1851. An Act to define and amend the Mineral Customs of certain Parts of the Hundred of High Peak in the County of Derby,Act of Parliament, 1851. An Act to define and amend the Mineral Customs of certain Parts of the Hundred of High Peak in the County of Derby, Part of the Possessions of Her Majestys Duchy of Lancaster; to make Provision for the better Administration of Justice in the Barmote Courts therein; and to improve the Practice and Proceedings of the said Courts [7th August 1851]. Also known as The High Peak Mining Customs and Mineral Courts Act, 1851. Extract