Hardly a club in the conventional sense, the organization referred to in the title of this superb literary hybrid (part history, part biography, part philosophy) consisted of four members and probably existed for less than nine months. Yet its impact upon American intellectual life remains incalculable. Louis Menand masterfully weaves pivotal late 19th- and early 20th-century events, colorful biographical anecdotes, and abstract ideas into a narrative whole that both enthralls and enlightens.