We must be careful not to overdo the subconscious. It is no self-contained unit, but rather an instrument used in the production of these phenomena. In consequence, it frequently happens that along with communications from the “other side” comes matter derived from the subconsciousness of the sensitive and even from that of the sitter. An investigator obsessed with the idea of fraud will often effectively negative all phenomena by his unconscious action on the mentality of the medium. In these investigations we must use that uncommon faculty of common sense. Common sense tells us that we cannot accept the explanation that _all_ psychic photographs are produced by the thoughts of incarnate beings. Whether it agrees with his pet theories or not, the serious student is bound to realise that, sooner or later, other minds are at work distinct from, and often superior in intelligence to, that of either medium or sitter. These intelligences claim to be the spirits of the so-called dead. They substantiate their claims by giving practical proof that they are whom they purport to be. For example, what better proof of survival could be given by a deceased person than that of a message in his own handwriting, referring to events that happened after his death? Such messages are by no means an unfrequent occurrence. There can be no doubt about the genuineness of the handwriting. Major R. E. E. Spencer has gone to an immense amount of time and trouble in making photomicrographs of normal and supernormal writings for the purpose of comparison. Illustrations are given of two of these photomicrographs. Figure 16 shows a portion of the signature of Archdeacon Colley taken from a letter written by him before death, whilst Figure 17 shows a corresponding portion reproduced from a photographic message received after his death. This message referred to events subsequent to his decease. Occasionally, in these psychographs, as these written photographic messages are termed, the mentality of the medium or sitters will get in the way, with very curious results. Throughout all these phenomena, however, there is every indication that other influences are at work. Whoever or whatever these intelligences behind the scenes may be, in no uncertain voice they claim to be discarnate souls. Surely _they_ are in a better position to form a correct opinion hereon than we material outsiders?