7. Suspension of persons or bodies in the air for a considerable space of time. No less interesting is it than to compare these phenomena to those observed by the thirty-three members of the commission appointed by the “Dialectic Society of London.” The following was this committee’s report, after eighteen months’ investigation: 1. Noises of varied nature, apparently arising from the furniture, floor or walls of the room, accompanied by vibrations which are often perceptible to the touch, are present without being produced by muscular action or any mechanical means whatever. 2. Movements of heavy bodies occur without the aid of mechanical apparatus of any sort, and without equivalent development of muscular force on the part of persons present, and even frequently without contact or connection with any one. 3. These noises and movements are produced often at the moment wished for and in the manner demanded by persons present, and, by means of a simple code of sounds, respond to questions and write coherent communications. 4. The response and communications obtained are, for the most part, hackneyed and commonplace, but sometimes they give facts and information only known to one person in the room. 5. The circumstances under which the phenomena are present vary, the most striking feature being that the presence of certain persons seems necessary to their production, and that the presence of some people serves as a check; but this difference does not seem to depend on the belief or the unbelief of those present as to the nature of the phenomena. The testimony, oral and written, received by the commission affirmed the reality of phenomena much more extraordinary still, such as heavy bodies rising in the air (men in certain cases floated through the atmosphere) and remaining in suspension without tangible support; apparitions of hands and forms belonging to no human beings, but seemingly alive, judging by their aspect and motions. This report was signed by _savants_ of the first order, as sceptical before commencing their investigations as the most positive Materialists of our academies of science. Let us cite, among the celebrated names of men known throughout the world for their learning and scientific veracity, those of the great naturalist and _collaborateur_ of Darwin, Russell Wallace, Professor A. Morgan, President of the Mathematical Society of London and Secretary of the Royal Astronomical Society; F. Varley, Chief Engineer of the Trans-Atlantic Telegraph Company and member of the Royal Society of London. Mr. Morgan does not fear to add to the report the following lines: “I am perfectly convinced, from what I have seen and heard, in a manner that renders doubt impossible, that _Spiritualists_, without doubt, are upon a track that will lead to the advancement of the psychal sciences; their opponents are those who seek to trammel all progress.”