It seems to me that sufficient facts have been accumulated to establish, provisionally at least, certain definite characteristics of all phantasms, whether of the living or the dead; and if a theory can be formulated, however startling it may be at first glance, that will harmonize with the well-established characteristics of the phenomena, it will be at least worthy of consideration. In attempting to do this, I shall not quote authorities to any extent to establish my premises, but shall state merely what seems to be well authenticated, and leave the verification of the premises, as well as the conclusions, to those who have more time, patience, and ability to devote to the work than I have. First of all, then, it seems to be well authenticated that the subjective personality of man possesses the power to create phantasms, or visions, which in many instances are visible to the objective senses of others. The telepathic experiments recorded in "Phantasms of the Living" and in the Proceedings of the Society for Psychical Research amply demonstrate the truth of this proposition. Every vision perceived by one in telepathic rapport with another must be presumed to have been created by one or the other. It is true that some of the visions may be merely perceived subjectively, but not all. Many cases are recorded where the phantasms have been perceived by more than one person at the same time, and others have been perceived under circumstances such as to leave no doubt that the percipient was in a completely normal condition, and saw the visions objectively. Moreover, the phenomena of so-called spirit photography amply demonstrate the fact that visions can be created of such tangible character that they can be caught and fixed upon the photographic plate. In saying this I am not insensible of the fact that many frauds have been committed in this species of phenomena, as well as in all others attributed to spirits of the dead. But this does not militate against phenomena of that character which have been produced under test conditions so strict that all possibility of fraud was eliminated. In admitting this class of phenomena to be genuine, in the sense that it is sometimes produced without fraud or legerdemain, it is also admitted that, in many instances, pictures of the sitter's dead friends have been produced which were such perfect likenesses of the deceased as to be unmistakable. Of course it will be understood that whilst I admit the phenomenon, I do not admit the claim that it has its origin in the spirit-world. Like all other so-called spirit phenomena, it is, in my opinion, directly traceable to the power of the subjective mind of the medium, aided by telepathic communion with the sitter. The latter, consciously or unconsciously, thinks of one or more of his dead friends. The medium, perceiving telepathically the image created by the mind of the sitter, re-creates it in such tangible shape that it is caught by the camera.