163. It would seem, at first sight, that persons who are endowed with a large amount of natural electricity, might be placed in this category of mediums. Such persons are veritable human torpedoes, and produce, by their mere contact, all the effects of magnetic attraction and repulsion but we should be wrong in regarding them as mediums, for medianimity presupposes the direct intervention of a spirit, while, in the cases we are speaking of conclusive experiments have proved that electricity is the sole cause of the phenomena in question. This curious faculty, which we may almost call an infirmity, is sometimes allied to medianimity, as is seen in the history of the Spirit rapper of Bergzabern, already alluded to; but it is often entirely independent of medianimity. As we have already remarked, the only proof spirit intervention in a given phenomenon is its intelligent character; whenever this characteristic is lacking, we may safely assume that the phenomenon is due to some purely physical cause. It is a question whether electrical persons have not a special aptitude for becoming physical mediums; we think they have, but this is a point which can only be decided by experience.