Marquina took much pains to have the obras pías honestly administered. He ordered that the nipa houses which still existed within the walls of Manila should be torn down, as being both a disfigurement and a danger to the city. During his term of office, a severe epidemic of smallpox was experienced in Filipinas; and he gave large sums to the parish priests to relieve the poverty caused by the pestilence. The islands were ravaged by the Moros year after year, the naval force of the Spaniards doing little more than to remain on the defensive; and in 1789 Marquina wrote to the king saying that the continual warfare of the Moros was "an evil without remedy." Mahomet Sarpudin, the successor of Ali-Mudin II, was very crafty and deceitful, and, while professing to be a friend of the Spaniards, he sent out Illano pirates against the merchant vessels, some of which were captured by Mahomet's own followers. Marquina met with much trouble in his government, from "class interests" and from the ingratitude of those whom he had helped; he resigned his office, "and returned to España poor and disheartened." [40] The king made him Viceroy of Mexico. Marquina's successor was a military officer, Rafael María de Aguilar y Ponce de León; he began his duties as governor on September 1, 1793. From the first, he was desirous of checking the Moro raids; but reports came that the English were going to attack Filipinas again, and his first efforts were directed to the defense of Manila and Cavite. He raised a force of 10,000 armed men, forming companies of Spaniards and of mestizos, and stationed detachments in outpost batteries in the environs of the city. He strengthened the walls, and tore down houses which menaced them; and increased the naval forces, also establishing a naval station and lookout on Corregidor Island. The English learned of Aguilar's preparations to receive them, and concluded not to go near Manila; "but they allied themselves with the Joloans, inciting them to invade the Visayas." Marquina's "plan for reforms" was sent back to the islands, the king asking that it be considered by the royal officials there, who should send him a report and their decision as to its advisability; "but as it attacked objects so powerful in the islands as the regular orders, the Audiencia, and the comptroller and officials of the exchequer, it is useless to show what report would be that sent out [by them] in regard to the plan of Marquina, which was in many respects extremely clear-sighted." In 1794 a shipyard, independent of that at Cavite, was erected in Binondo, its principal purpose being to construct vessels with which to follow up the Moro pirates; it was called La Barraca ("the barracks"), [41] and was "famous for the enormous expenses which were suspected in the construction work carried on there." It was placed in charge of Juan Nepomuceno Acuña, and its directors were, ex officio, the royal officials. On Christmas Day in 1796,