Transactions of the Royal Geological Society of Cornwall, Vol 2, p218 - 224
Observations on the Hornblende Formation in the Parish of St Clere, Rev John Rogers, [Read October 1818 and accompanied by a series of Specimens], II: 218-224, 1822.
Observations on the Hornblende Formation in the Parish of St Clere, Rev John Rogers, [Read October 1818 and accompanied by a series of Specimens], II: 218-224, 1822.