This textbook is the third volume of the second series of the "All-Over-the-World Library" in which the voyage of the ship, Guardian-Mother, is temporarily suspended at Alexandria, while excursionists make their trip up and down the great river of Egypt in another steamer more suitable for inland navigation. One young lady, and the quartet of young men from 15- to 18-years old who have called themselves the "Big Four," are students. They attend to regular studies a portion of the time, especially when the ship and her little consort are at sea; and when the party are engaged in sightseeing, which forms most of their occupation in this book, they are still students, and the commander takes the greatest pains to have them well instructed. All the excursionists are students in a less technical sense, and all of them are employed, not only in gratifying their curiosity, but also in acquiring knowledge. Through lectures and conversation the history of Egypt, ancient and modern, is brought out to a considerable degree, as well as the geography, resources, and religion of the country.