196. It has been already mentioned in the narrative ([164].) that my spirit father, and spirit friend W. W., had alleged that they worked my apparatus with great difficulty when under test conditions, from their great desire to make me a convert to Spiritualism. It was, therefore, quite consistent that a spirit, who had no such powerful motive, should have preferred to find an apology for not actuating my apparatus, rather than to have studied, or sought for the means of surmounting the obstacles.
197. As all the manifestations, observed on this occasion, were by the tilting or partial lifting of the table, I urged the spirit to aid me in obtaining a test that these manifestations came not from the medium, but from herself, a spirit. I immediately procured from a basket which I had previously brought to the premises, a brass ball, turned truly spherical, like a billiard ball, and a plate of zinc which had been ground quite true. I placed the ball on the table, the plate on the ball, and the hands of the medium on the plate. She had no other communication with the table than that which was thus established. Pressing on the ball when situated between perpendicular lines falling inside of all the legs of the table, would of course only press it downward more firmly on its feet.
198. Things being thus arranged, I solicited Maria to repeat the upward jerks which she had employed in the communication which she had been making. Her father joined his solicitation to mine, pointing out that my object was to obtain evidence, which would satisfy the scientific world that such manifestations were due to the agency of spirits.
199. After a little delay the table rose under the ball, the plate, and the hands of the medium, with greater force than had been displayed in any of the foregoing movements.
200. Subsequently, being in company with Maria’s father, at the dwelling of a spiritualist, and sitting with a medium at the table supporting an apparatus for alphabetical communications, the spirit of Maria, who seems to follow her worthy father with much filial affection, reported herself. I inquired whether she remembered our previous meeting, and what means I resorted to as a test. She replied, “You used a plate and ball to support the hands of the medium, which I knocked away.”
201. While receiving communications from my spirit sister, the table tilting toward the medium, so as to cause the cord actuating the index, by being through a string tied to a weight on the floor, alternately to be withdrawn and returned, consequently, winding off and on the pulley which turned the index, I suggested that the relative position of the medium should be reversed, so that she should be on the same side with the apparatus. By this change the table would have to rise under the hands of the medium. The proposed modification was successfully carried out.
202. I asked my sister how a spirit could work an apparatus with the medium’s hands on the upper surface of the table; the reply was, that the presence of the hands of the medium enabled the spirit to act in opposition to them.
203. Under this head comes the experiment in which a board was supported so as to turn on a fulcrum, one foot of the board being on one side of the fulcrum, and three feet on the other, the longer end suspended on a spring balance. When a medium, eleven years old, placed his hands on the short end, that end rose while the other, of course, went down; in some instances, showing an increase of downward pressure on the balance, equivalent to seven pounds.
204. This experiment was subsequently repeated at my laboratory, in the presence of John M. Kennedy, Esq. Having a basin of water on the board, the boy’s hands being merely immersed in the water, and not touching the parietes of the containing vessel; the balance was affected as in the experiment above described, although not to so great an extent.