821. Evidently, the ponderable elements recognised by mundane chemists cannot contribute to any of the bodies of the spirit world, since their gravity must disqualify them for use in a world where every thing is, in comparison with them, weightless. Accordingly, one of the queries put by me to the convocation of spirits (574) was, whether any of our elements, being ponderable, could act as such in the imponderable spiritual creation. The reply was, Not without undergoing a transformation. This would be equivalent to annihilating them first, and recreating them afterward, when the process of creating alone would be sufficient. But manifestly it is of no importance, whether their adaptation to the spirit world be the result of creation or of transformation. 822. Concerned in the processes of mediumship, it is manifest that there is none of that kind of electricity or magnetism of which the laws and phenomena have been the subject of Faraday’s researches, and which are treated of in books, under the heads of frictional or mechanical electricity, galvanism, or electro-magnetism. 823. Frictional electricity, such as produced usually by the friction of glass in an electrical machine, or of aqueous globules generated by steam escaping from a boiler, is always to be detected by electrometers, or the spark given to a conducting body when in communication with the earth; the human knuckle, for instance. When not sufficiently accumulated to produce these evidences of its presence, it must be in a very feeble state of excitement. But even in the highest accumulation by human means, as in the discharge of a powerfully charged Leyden battery, it only acts for a time inconceivably brief, and does not move ponderable masses as they are moved in the instance of spiritual manifestation. It is only _in transitu_, that frictional electricity displays much power, and then its path is extremely narrow, and the duration of its influence inconceivably minute. According to Wheatstone’s experiments and calculations, it would go round the earth in the tenth part of a second. 824. How infinitely small, then, the period required to go from one side of a room to another! Besides, there are neither means of generating such electricity, nor of securing that insulation which must be an indispensable precursor of accumulation. 825. Galvanic or voltaic electricity does not act at a distance so as to produce any recognised effects, except in the case of magnetic metals, or in the state of transition produced by an electric discharge. In these phenomena the potent effects are attainable only by means of perfect insulated conductors, as we see in the telegraphic apparatus. No reaction with imperfect conducting bodies competent to toss them to and fro, or up and down, can be accomplished. The decomposing influence, called electrolytic, is only exhibited at insensible distances, within a filament of the matter affected.