Note 63 — EXCURSION III.
Reading edition
See a paper by Dr. John Davy, in the first volume of the Transactions of the Royal Geological Society of Cornwall, entitled "On the Granite Veins of Porth Just."
Reading edition
See a paper by Dr. John Davy, in the first volume of the Transactions of the Royal Geological Society of Cornwall, entitled "On the Granite Veins of Porth Just."