Antonio de Morga (1559–1636), a Spanish official in Manila, listed an extensive inventory of goods that were traded by Ming China at the turn of the 16th to 17th century, noting there were "rarities which, did I refer to them all, I would never finish, nor have sufficient paper for it". After noting the variety of silk goods traded to Europeans, Ebrey writes of the considerable size of commercial transactions: In one case a galleon to the Spanish territories in the New World carried over 50,000 pairs of silk stockings. In return China imported mostly silver from Peruvian and Mexican mines, transported via Manila. Chinese merchants were active in these trading ventures, and many emigrated to such places as the Philippines and Borneo to take advantage of the new commercial opportunities.