There were many points about Foster's mediumship which suggested an extended personality, rather than an outside intelligence. It is, for example, frankly incredible that the spirits of the great departed, such as Virgil, Camoens and Cervantes, should have been in attendance upon this unlearned New Englander, and yet we have Bartlett's authority for the fact, illustrated with many quotations, that he held conversations with such entities, who were ready to quote the context in any stanza which might be selected out of their copious works.
Such evidence of familiarity with literature far beyond the capacity of the medium bears some analogy to those book tests frequently carried out of late years, where a line from any volume in a library is readily quoted. They need not suggest the actual presence of the author of such a volume, but might rather depend upon some undefined power of the loosened etheric self of the medium, or possibly some other entity of the nature of a control who could swiftly gather information in some supernal fashion. Spiritualists have so overpowering a case that they need not claim all psychic phenomena as having necessarily their face value, and the author confesses that he has frequently observed how much that has somewhere, some time, been placed on record in print or writing is conveyed back to us, though by no normal means could such print or writing be consulted at any time by the medium.
Foster's peculiar gift, by which initials were scrawled upon his flesh, had some comic results. Bartlett narrates how a Mr. Adams consulted Foster. "As he was leaving, Mr. Foster told him that in all his experience he had never known one individual to bring so many spiritsthe room being literally packed with them, coming and going. About two o'clock the next morning Mr. Foster called to mesaying: 'George, will you please light the gas? I cannot sleep; the room is still filled with the Adams family, and they seem to me to be writing their names all over me.' And to my astonishment a list of names of the Adams family was displayed upon his body. I counted eleven distinct names; one was written across his forehead, others on his arms, and several on his back." Such anecdotes certainly give a handle to the scoffer, and yet we have much evidence that the sense of humour is intensified rather than dulled upon the Other Side.
The gift of blood-red letters upon Foster's skin would seem to compare closely with the well-known phenomenon of the stigmata appearing upon the hands and feet of devout worshippers. In the one case concentration of the individual's thoughts upon the one subject has had an objective result. In the other, it may be that the concentration from some invisible entity has had a similar effect. We must bear in mind that we are all spirits, whether we be in the body or out, and have the same powers in varying degree.
Foster's views as to his own profession seem to have been very contradictory, for he frequently declared, like Margaret Fox-Kane and the Davenports, that he would not undertake to say that his phenomena were due to spiritual beings, while, on the other hand, all his sittings were conducted on the clear assumption that they were so. Thus he would minutely describe the appearance of the spirit and give messages by name from it to the surviving relatives. Like D. D. Home, he was exceedingly critical of other mediums, and would not believe in the photographic powers of Mumler, though those powers were as well attested as his own. He seems to have had in an exaggerated degree the volatile spirit of the typical medium, easily influenced for good or ill. His friend, who was clearly a close observer, says of him:
He was extravagantly dual. He was not only Dr. Jekyll and Mr. Hyde, but he represented half a dozen different Jekylls and Hydes. He was strangely gifted, and on the other hand he was woefully deficient. He was an unbalanced genius, and at times, I should say, insane. He had a heart so large indeed that it took in the world; tears for the afflicted; money for the poor; the chords of his heart were touched by every sigh.