The _Washington_ cruised all summer in the Mediterranean, stopping at many places, which gave Farragut an opportunity to study geography in the finest way possible. The great volcano Vesuvius was in eruption when he visited it, which was an experience he never forgot, and another of a very different kind was when the King of Naples and the Emperor of Austria visited the _Washington_ and were entertained with great display and elegance. After stopping at the coast towns of Tunis, Tripoli and Algiers, the _Washington_ finally put up for the winter in a Spanish harbour, and then, as during the entire cruise, the boys were taught by the ship's chaplain, Mr. Folsom, who was so devoted to David that when in the fall of 1817 he was appointed consul to Tunis, he wrote to the Captain of the _Washington_ asking permission to take the boy with him, because, he said to the commodore "he is entirely destitute of the aids of fortune and the influence of friends, other than those whom his character may attach to him," and the request was granted. Farragut spent nine delightful and valuable months with his old friend, who gave the boy every opportunity, not only for study, but to gain such polish and worldly experience as he would need in later life and David eagerly profited by every advantage given him. Then the Danish consul, who was also an admirer of the bright sturdy boy, invited him to visit him. Farragut was now sixteen years old, and it was at that time that the first real hardship of his life came to him, when as the result of a sunstroke, his eyes were weakened, and never entirely recovered. Soon it was time for him to go on duty on the _Washington_ again, and Mr. Folsom, tearful with regret at being obliged to part from the boy, took him in his arms and gave him his blessing and their paths in life parted, although forty years later, when Farragut had become a famous Admiral he sent a token of respect and love to Mr. Folsom, showing that he had never forgotten his old friend. When Farragut was eighteen years old, he was called to America to take his examination for a lieutenancy, which he took and passed successfully, but as there was no vacancy just then in the navy, he was obliged to wait, and although he spent the time happily with the Porters in their Virginia home, he was glad indeed when the chance came to cruise again, for he was a thorough sailor, and the love of the sea ran hot in his veins.