When Prado took charge of the governorship, he immediately proceeded to build quarters for the reenforcement of dragoons which were to be sent over from Spain, and for that purpose engaged sixty galley-slaves from Vera Cruz. He also began work on the fortifications of Cabanas under the direction of the excellent engineer Francois Ribaut de Tirgale. But a second consignment of galley-slaves in June brought to Havana the "vomito negro," the yellow fever, of which Siam had made a gift to Mexico in 1713 and which so far had been unknown in Cuba. Physicians being unfamiliar with the terrible scourge, all remedies proved of no avail. Within three months eighteen hundred men of the garrison and the fleet succumbed to the disease. The hospitals were filled with the sick, and work on the important public constructions was suspended. Engineer Tirgale was one of the first stricken. He was succeeded by his brother Balthazar, but he himself was sick and had such insufficient and inadequate help that he was much handicapped in his work. New difficulties having arisen with the vigueros, or tobacco-planters, Prado convoked the Junta which agreed to fix the process, the quantity and the brands of tobacco which the General Factory was to receive from the planters. [Illustration: THE OLD ESPADA CEMETERY, HAVANA, 1750] Thus was the whole year 1761 wasted, while the signs of the impending outbreak multiplied and the danger of the dreaded invasion came nearer and nearer. On the sixteenth of January, war was declared and only on the twenty-sixth of February did the news reach Prado, for the vessel carrying the dispatches of the Spanish government had been captured by the tender of the _Dublin_. He called at once a meeting of the council and asked for one thousand veterans to replace the losses which the troops had sustained through the epidemic. He also demanded that he be furnished four thousand rounds of powder. The army that he could muster in the eventuality of an invasion did not number at that time more than four thousand six hundred men. Yet Prado could not be roused from a curious apathy that possessed him and that made him again lapse into the indolence of Creole life. It seemed impossible for him to realize that anybody would dare to attempt what neither Hossier, nor Vernon, nor Knowles had dared. M. de Blenac, who commanded a French fleet charged with the protection of Santo Domingo, and Prado's friend Madriaga were equally unsuspecting. Had the former come to an understanding with the commander of the Royal Spanish transports, they might have surprised the British in the straits of Bahama and averted the disaster.