A history of phrenology in the United States. Theories of Franz Joseph Gall and Johann Christoph Spurzheim. Visit of Johann Christoph Spurzheim to Boston for public lecture series. Death of Spurzheim in Boston. Activities of Orson Squire Fowler. Phrenological lecture tour of the Fowler brothers. Establishment of Fowlers & Wells publishing company. Fading of phrenology in the 20th century.