The Seybert Commission, it should be explained, owes its origin to the bequest of an ardent believer in Spiritualism, Mr. Henry Seybert, to the University of Pennsylvania; which was coupled with the condition that this university should appoint a commission to investigate modern Spiritualism. It is from their report[6] that several of my illustrations are taken. The members of this commission began their investigations with an entire willingness to accept any conclusion warranted by facts; and their chairman, Dr. Horace Howard Furness, confessed "to a leaning in favor of the substantial truth of spiritualism." They examined many of the most famous mediums and the manifestations that contributed most to their fame. Their verdict, individually and collectively, is the same regarding every medium with whom they saw anything noteworthy: gross, intentional fraud throughout. The mediums were treated with the utmost fairness and courtesy; their conditions were agreed to and upheld; every one, in each kind of manifestation, was caught in the act of trickery, or else the trick was repeated and explained by one of the commission. This testimony goes far to justify the substitution of "trick" for "manifestation," of "senseless cant" for "spiritualistic explanation," of "adroit conjurer" for "medium." While the accumulative force of this conclusion can only be appreciated by a reading of the report itself, a few further illustrations will contribute to a realization of the nature of the "manifestations" and their typical _milieu_. Mrs. Patterson, medium, gives a performance similar to that of Slade. Dr. Knerr had a sitting with her, and adjusted a mirror about his person so as to reflect whatever was going on beneath the table. "In the mirror I beheld a hand ... stealthily insert its fingers between the leaves of the slate, take out the little slip (containing the question), unfold and again fold it, grasp the little pencil ... and with rapid but noiseless motion ... write across the slate from left to right a few lines; then the leaves of the slate were closed, the little pencil laid on the top," and the spirits were graciously invoked to send a message.