The reference to phrenology, psychology, and mesmerism, as here combined, describing the manner in which Satan takes advantage of the human mind, may seem a bit obscure to one not familiar with the literature of the time and its emphasis. Scientific works devoted to physiology and the care of the sick carried advertising lists at the back informing the public of literature available. One such work, The Water Cure Manual (284 pages), published in 1850 by Fowlers and Wells, carries a list of sixty-five different works on physical and mental health, and of these, twenty-three are devoted to phrenology, psychology, mesmerism, and clairvoyance. We reproduce here a few items: