Author discusses about his experiences in the book. He says that when I was a boy, some years before I obtained my appointment in the navy, I spent many of those happy hours that only childhood knows poring over the back numbers of a British service periodical, which began its career in 1828, with the title Colburn's United Service Magazine; under which name, save and except the Colburn, it still survives. Besides weightier matters, its early issues abounded in reminiscences by naval officers, then yet in the prime of life, who had served through the great Napoleonic wars.