Another: because this becomes more expedient in the present emergencies, in which those kingdoms desire to help meet the new impositions which have been levied in all of them since the year 1630: the union of the armies, the windward armada, the sale of new offices, the half-annat, the stamped paper, the increase of the avería on both seas, the incorporation and reduction of encomiendas in both kingdoms, and other matters, which are well known to your illustrious Lordship. And if [his Majesty's] vassals are not favored in these exigencies by facilitating their commerce, it will be impossible for them, even though they desire it (as they all do), to aid in bearing so great a load. [13] Another: because this permission was granted to Perù in recompense for what was taken away from that country in the goods from China. That trade was free, as I have said, and those stuffs were shipped from Nueva España in abundance; and thus the provinces of Perù experienced great relief, as the Chinese goods were so cheap that those of Castilla were estimated at three times their price. It was expedient to prohibit the Chinese goods, in order that the commerce of España might not diminish for lack of the wealth of Perù. And, since the welfare of some vassals is not to be gained by destroying the others, in order to repair the loss which was caused by this prohibition to the vassals of Perù permission was granted to them for 200,000 ducados in goods from Nueva España, which are not so cheap as those of China, nor so dear as those of Castilla. This is stated in the royal decrees for the concession, and is inferred from their being of the same year and date as those for the prohibition. If this was the cause, and now it does not cease to operate, but rather is still more active--on account of the commodities which go from España having greatly increased in price, the land being poorer, and the impositions, expenses, and losses being heavier--it may be easily understood that this permission ought not to be refused.