"Now all this time, I imagine you are wondering how the stereoscopic camera was behaving itself as such. It is due to the psychic entities to say that whatever was produced on one half of the stereoscopic plates was produced on the other, alike good or bad in definition. But on a careful examination of one which was rather better than the other, ... I deduce this fact, that the impressing of the spirit form was not consentaneous with that of the sitter. This I consider an important discovery. I carefully examined one in the stereoscope, and found that, while the two sitters were stereoscopic _per se_, the psychic figure was absolutely flat. I also found that the psychic figure was at least a millimetre higher up in one than the other. Now, as both had been simultaneously exposed, it follows to demonstration that, although both were correctly placed vertically in relation to the particular sitter behind whom the figure appeared, and not so horizontally, this figure had not only not been impressed on the plate simultaneously with the two gentlemen forming the group, but had not been formed by the lens at all, and that therefore the psychic image might be produced without a camera. I think this is a fair deduction. But still the question obtrudes: How came these figures there? I again assert that the plates were not tampered with by either myself or any one present. Are they crystallisations of thought? Have lens and light really nothing to do with their formation? The whole subject was mysterious enough on the hypothesis of an invisible spirit, whether a thought projection or an actual spirit, being really there in the vicinity of the sitter, but it is now a thousand times more so.... "In the foregoing I have confined myself as closely as possible to narrating how I conducted a photographic experiment open to every one to make, avoiding stating any hypothesis or belief of my own on the subject."