Samuel Clemens left Hannibal for more promising St. Louis in 1853, where he continued to work in the printing trade. In his notebook from 1855, he mentioned how he was reading George Sumner Weaver’s phrenology book. He was so enthralled with it that he copied parts and the skull diagram into his notebook. In 1857, he became a riverboat pilot, a far more exciting and lucrative job. When the Civil War ended river traffic from the North to New Orleans, he headed west with his older brother, now secretary for the Nevada territory. He now began to write for local newspapers, presenting himself as “Mark Twain.” He next tried mining and writing in California, where his hilarious jumping frog story from 1865 was his first nationally acclaimed piece. It led to commissions for pieces on the people and places he would now see, including Hawaii, Europe, and the Middle East. He would present some of his experiences in his travel books, including The Innocents Abroad (1869) and Roughing It. He used phrenological terms, concepts, and portraits in these works, even poking phrenological fun at himself. He did not, however, denigrate phrenology or the head readers in these works.

When Holmes returned to America in December 1835, he quickly completed the requirements for his Harvard medical degree and began practicing medicine. Soon after, he began teaching at Dartmouth and then Harvard. He was now using his pulpit and pen to rail against superstitions, quackery, and unsubstantiated beliefs and therapies in medicine, while making seminal contributions to his profession. He gave a lecture on phrenology in 1850, but it is not clear what he communicated. We also know that he had several phrenology books in his personal collection and used the university’s libraries, also meeting with other New England writers interested in the subject. Wanting to learn more, he had Lorenzo Fowler evaluate his head in 1859, twelve years before Mark Twain used the same phrenologist for his “little test.” What Fowler reported was preserved and is presented. Importantly, Holmes was now prepared to state what he thought about phrenology and the head readers in public.

The extent to which Holmes opened Clemens’s eyes about the head readers as frauds, served as his leading guide into the pseudo-science of phrenology, and provided a template for him to lampoon the head readers is addressed in this chapter. Three questions are asked. First, was Clemens familiar with Holmess writings? Second, did he meet Holmes? And third, is there evidence to suggest that Clemens “borrowed” some of Holmess ideas and humorous ways of presenting his thoughts about the head readers and their so-called science? Each of these questions is answered in the affirmative using the letters they exchanged, showing when they met, and by examining their writings. Most notable is how Mark Twain used the same two-column structure that Holmes had used in 1859 to present what the head reader was telling a client but really thinking. This chapter is particularly important because Holmes has not been recognized for having such an influence on Clemens/Twain. Nor had it been shown how Mark Twain borrowed rather freely from Holmes. Then again, scant little has been published on Clemens’s/Mark Twain’s forays into phrenology and there is nothing on Holmes and the head readers.

Clemens must have continued to have his doubts about the head readers into the 1870s, because he decided to conduct an experiment of his own on a leading head reader in 1872. Having discovered some of the tricks mediums were using, he made two trips to Lorenzo Fowler’s phrenological emporium in London. He dressed and acted like a nobody during the first trip. Then, after some weeks had passed, he returned and presented himself as the famous American humorist and author Mark Twain. He would later describe his great awakening in a short but serious published letter, and with humor and artistic liberties in an autobiographical dictation and his posthumous but never-completed novel Eddypus. The letter and phrenological parts of his dictation and Eddypus are presented in this chapter. Being told on his first visit that his head had a cavity above the organ for a sense of humor and on his second that he had a Mount Everest in the same spot would change how he would depict the head readers in his most famous novels. Writing as Mark Twain, Samuel Clemens would now set forth to educate the gullible public.