Delighted with all he had seen, Columbus returned to Isabella on the 29th of March. Great progress had been made, and many of the seeds had already sprung up, bearing fruit. Unfortunately, however, bread had become scarce, and there was no means of grinding wheat. Disease also had attacked the settlers, and many persons of all ranks had died. He was, however, anxious to proceed on his voyage of discovery, and supposing that he could trust his subordinates, he left ample instructions for their conduct. He directed Margarite, with a strong force, to explore the province of Cibao, while Ojeda was to assume the command of Saint Thomas. One of the objects of the expedition was to secure the persons of any chiefs who had exhibited hostile feelings towards the Spaniards. Several were thus captured and sent in chains to Isabella. At length Columbus, satisfied that the colony would go on well, set sail, intending to visit the coast of Cuba at the point where he had abandoned it, and thence to explore it on the south side. He, it must be remembered, supposed it to be the extreme end of Asia, and that by following its shores he must at length arrive at Cathay, and those other rich countries described by Mandeville and Marco Polo. Having visited La Navidad, where Guacanagari kept out of the way, he continued his course westward, until he reached the port of Saint Nicholas, whence he beheld the extreme point of Cuba. Having crossed the channel, he sailed along the southern coast of that island for a distance of twenty leagues, until he entered a harbour, which from its size he called Puerto Grande. Going on shore, he arrived at some cottages, where, although the inhabitants had fled, great quantities of fish, utias, and iguanas were found, some hung up, others roasting before the fires. The Spaniards, who had long been fasting, satisfied their appetites on the food, and then set out to explore the country. On their way they saw a party of Indians, collected on the top of a rock, looking down upon them with astonishment. Though most of the natives ran off, one remained, whose apprehensions were quickly dispelled by the friendly way the young Lucayan interpreter spoke to him. Going after his companions, he soon brought them back. They assured Columbus that he was welcome to the food which had been consumed; but he, with his usual liberality, directed that ample compensation should be made to them. The next harbour in which he brought up he called Saint Jago de Cuba. Here he was treated with the usual simple hospitality of the natives. Wherever he went he inquired for gold, and the natives invariably pointed to the south, intimating that the country abounded with gold in that direction.