[Ms. report and account book] Longstone Edge Mines in Derbyshire / John Taylor. 1841 Mar-1846 Aug. [48p. used. Comprises analysis, dated 1841 Mar 30, of the state of the lead mining industry in Derbyshire, the problems it faces and possible solutions; and five reports made to the proprietors of Longstone Edge Mines with accompanying 'Statements of Longstone Edge Mines Reckonings' for the periods up to Apr 1842, Dec 1843 and Aug of 1844, 1845 and 1846]