In the year 1897 an attempt to explain mesmerism is not as necessary as it used to be. The amount of notice which the newspapers give to the subject suggests that an interest in it is very widespread in America. Even the most illiterate must now be aware that persons may be so influenced by the wills of others that they pass into a sleep, or a condition resembling sleep, during which they are to a large extent, and sometimes entirely, subject to the wills of the actuators. Professionals have also assisted in instructing the public as to the minor phenomena. One of them has lately been making money in New York by keeping his patient in the hypnotic trance for a week, during which ignorant medical students and doctors tried brutal methods of awakening the victim--the same methods which disgrace some of the hospitals when unfortunates pass into trances from unknown causes. In other cases, persons in the audience are requested to pencil secretly some lines on paper and hide the writings in their pockets. The patient on the stage then reads the writing, and this reading is subsequently compared with the hidden papers and found to be correct. The numbers engraved on people's watches are also read in the same way. I have never attended such performances because they had nothing to teach me; and if confederates were used, all I can say is that the performances could be given much more easily without confederates. My reason for mentioning these people is that their work, if genuine, as I suppose, allows me a greater brevity in this paper; also because their large numbers prove the truth of what I published long ago, that anyone of fairly strong will-power can perform these seeming marvels if a suitable patient can be procured. It may, however, be accepted as absolutely correct that the vision of mesmerized patients is not impeded by materials. In my earliest experiments I tried all kinds of receptacles when secreting articles. But the changes made no difference. The patients can discern the interior of an iron box as easily as we in the ordinary state can see through a glass one. Of course this has nothing to do with ordinary vision, the eyelids being closed at the time. All such trials as this I ranked in the lowest grade, because the patients may have been reading what was within my own knowledge--a faculty that was partly exhibited to prominent men in chief cities by Mr. Stuart Cumberland and Mr. Irving Bishop.