"American Commonwealths: California" by Josiah Royce is a hardcover book published by Houghton Mifflin Company in Boston in 1886. The book, part of a series on American commonwealths, focuses on the history of California. Written in English by the renowned author Josiah Royce, the book provides a detailed account of the political, social, and economic aspects of California as part of the United States. This collectible item offers readers a valuable insight into the history and culture of California during the late 19th century.