This island, formerly known by the names of Enaria and Pithecusa, is exceedingly fertile, rich, and populous, the whole of it is conceived to be of volcanic origin; indeed it was formerly famous for its frequent eruptions, although they have now entirely ceased. The town of Ischia, from whence it derives its present name, is situated in a small bay, which is protected by a castle, built on a rock projecting into the sea, and separated from the main island by a ridge of sand. Sentinella is a single house, standing on a rock which overhangs the sea; it belongs to a public notary, who receives visitors that come to the island for the benefit of its baths, and who are accommodated with board and lodging at the rate of a dollar per day; as a situation, it is far preferable to the adjoining village of Lucio, which is a shabby place, standing low on the shore, and consequently excessively hot, and infested by mosquitoes; whereas, at Sentinella, there is a fine sea breeze by day, and fresh air from the mountains at night. The proprietor has several daughters, agreeable young women, who study the comforts of their visitors; he has, besides, a brother, a medical man, residing in the village. In the evening, the young ladies entertained us with music and dancing. The baths are situated at the village. There are two springs, one termed _Aqua del occhio_, from which the baths are supplied; the other is called the _Aqua Caponi_; I drank a couple of tumblers full of the latter, the taste of which reminded me of a weak solution of Cheltenham salts. After returning from the baths, we rested quietly for the remainder of the day, amusing ourselves with reading; in the evening, we walked to a village named Piazza, and on our return, were again entertained with music and dancing. On the following morning, I took leave of Sentinella, where I should have felt happy to have prolonged my stay, in order to have enjoyed more of the society of Mr. O⸺, whom I left behind me. The pursuits of this gentleman, were much in unison with my own; that is, he occupied his time with an alternation of exercise and reading, the one so condusive to health, the other to happiness; nor were these pursuits directed to the mere attainment of vacant pleasure, but to the more satisfactory acquisition of useful information; and Horace says, “Omne tulit punctum qui miscuit utile dulci.” At ten o’clock I embarked for Naples, which, however, we did not reach before six in the evening, for we had light or contrary winds throughout the day, and, notwithstanding the use of our oars, made but slow progress.