A more promising field, however, as we shall see, was now developing in the prosecution of heretic merchants and shipmasters who were seeking the trade of the Canaries, when a latitudinarian construction of the law permitted the seizure of vessels and cargoes, on which the grip of the Inquisition was not easily relaxed. Either from this or some other source the tribunal was emerging from its poverty, for a stray document shows us that, in 1602, it was investing 5000 ducats in a ground-rent, from which it was still receiving the income in 1755.[302] We also catch a glimpse of its affairs in 1654, when the Seville Contratacion sent its fiscal to the Canaries to put a stop to the exportation of wine to the Indies, the commerce of which was confined to Seville. On June 15th the tribunal addressed to Philip IV a memorial, arguing that to cut off this trade would be the total destruction of the islands, which now pay the king 60,000 ducats a year over the expenses of the garrison and judiciary, for the English took only the malmsey of Tenerife and the rest of the vintage, amounting to 16,000 pipes per annum, went to the Indies. The bishopric, now worth 30,000, would not be worth 10,000; as for the Inquisition, it held ground-rents on the vineyards paying 22,232 reales and 28 maravedís, which it would lose, and, as its only other source, the prebend, was worth only 300 ducats a year, its support would fall on the king.[303] The only relief obtained from the king was permission to ship 1000 tuns a year to various American ports. Whether the tribunal suffered or not we have no means of knowing, but in 1660 we find it gathering in the estate of Duarte Henríquez, burnt in effigy in 1658, and applying 1942 reales from it to the renewal of 212 sanbenitos, hung in the churches, which had become worm-eaten and indistinct with age.[304]