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Dines, H.G. The Metalliferous Mining Region of South-West England addenda and corrigenda, 1988, Vol. II p.xiv.
Kelly’s Directory 1856 Cornish & Devonshire Mines.
Camborne School of Mines Magazine 53. P.19-22
Mineral Statistics 1856.
MJ 1840 p.364.
MJ 1850 p.229, 241
MJ 1854 p.7
Murchison, J.H. 1855. British Mines Considered as a Means of Investment. 3rd Edition July 1855 p.199.