1792-1804 1826-1832 1845-1846
Publications (3)
- Cantrill T.C., Sherlock R.L. & Dewey H. (1919); BGS - Mineral Resources of GB (c1920s) Vol IX - Iron Ores - Durham, East Cumb., North Wales, Derbyshire, IOM, Bristol, Somerset, Devon & Cornwall; 96 pages
- Collins, J.H. (1912); Observations of the West of England Mining Region; 753 pages
- Dines, Henry George (1956); BGS - Regional Memoirs - Metalliferous Mining Region of South West England Vol1, The; 567 pages




