Miscellaneous Notices of Facts, connected with the Mineralogical, Geological and Economical History of the County of Cornwall (12):, V. On the formation of a Substance resembling Gneiss, taken from a Steam Boiler at Huel Alfred, J A Paris, I: 227-229, 1818.

Paris, A J

Transactions of the Royal Geological Society of Cornwall, Vol 1, p227 - 229

Miscellaneous Notices of Facts, connected with the Mineralogical, Geological and Economical History of the County of Cornwall (12):, V. On the formation of a Substance resembling Gneiss, taken from a Steam Boiler at Huel Alfred, J A Paris.