Brooks, T. 2011. A History of Iron Mining in Cornwall. Cornish Hillside Publications St Austell p.17.
Dines, H.G. The Metalliferous Mining Region of South-West England, Vol. I, p.270.
Dines, H.G. The Metalliferous Mining Region of South-West England addenda and corrigenda, 1988, Vol. I p.xxxii,xxxiii.
Kelly’s Directory 1873 Mines now being worked.
List of Iron Mines 1865-1867, 1869-1874.
Mineral Statistics 1869-1874.
MJ 1877 p.239, 239
Noble, G, 1872. Remarks on Mineral Veins in the Parish of Constantine. The Miners’ Association of Cornwall and Devonshire 1872 p.45-46.
Pirrie, D., Power, M.R., Rollinson, G., Cundy, A.B. & Watkins, D.C. 2002. Impact of mining on the sediment geochemistry and mineralogy of the Helford River, Cornwall. Geoscience in South-West England Proceedings of the Ussher Society 10 p.323-328.
Reports of the Inspectors of Mines List of Mines 1873-1875.
Or: Constantine Iron Mine.
See also: John Brogden and Son. Brogden Mine. Inow Mine.