The Black Prince certainly removed several hundred miners from Derbyshire to Devonshire, and from the mines about Combmartin, it is said that he obtained wealth sufficient to pay the expenses of his wars in France; but there is no evidence that this wealth was in gold. The lead-ores of this part of Devonshire were, and are, exceedingly rich in silver; and the treasure obtained by Edward's miners was probably in that metal. We have distinct evidence of the discovery of silver, lead, copper, and tin, in numerous law-suits between the adventurers, and in the claims made by the crown for unpaid royalties; but there is no mention of the actual discovery of gold. We know a district in Devonshire bearing the name of Gold Street, which was, in the days of Elizabeth, zealously worked over, as the numerous existing shafts show; but all these shafts are on a load of argentiferous silver.