"The bare facts are as stated, being neither more nor less than what took place. I have never on any other occasion had any hallucination of the senses, and I think you will find the same to be the case with Mr. P." This incident took place after Mr. J.'s vision, but Mr. J. had mentioned his own experience only to his wife and one other friend, and no hint of it appears to have reached the assistants in the library, so that the two visions would appear to have been independent. To extend the theory of thought-transference from living minds to cover a case such as that just quoted may seem to some extravagant. But if there is anything beyond chance in the occurrence--and it would be a very remarkable coincidence that three persons should independently be the subject of hallucination in the same house, and that one of the hallucinations should resemble a former occupant of the house, unknown to the percipient--some explanation is required, and an explanation which involves no novel or unproved agency is, _ceteris paribus_, to be preferred. As regards the apparently local character of the visitation, Mr. Gurney has suggested, with regard to some cases quoted in _Phantasms of the Living_ (vol. ii. pp. 267-269), where the link between agent and percipient appears to have been of a local and not of a personal character, that a similarity of immediate mental content between the percipient and agent may have been the condition of the telepathic action. In the ordinary case of an apparition, _e.g._, of a dying mother to her son, the condition of the appearance to that particular percipient rather than to the man in the street should on this hypothesis be sought in the community of intellectual and emotional experiences which may be presumed to exist between near relatives who have passed a large part of their lives in the same environment. In the cases now under consideration the substitute for such far-reaching community is to be found in the transitory occupation of both percipient and agent--the one in present sensation, the other in memory--with the same scene. Such partial community of perception, by a kind of extended association of ideas, tends under the hypothesis towards more complete community, and the agent thus imports into the sensorium of the percipient the image of his own or some other's presence in the scene which forms part of the present content of both minds. On this view Mr. J. saw the figure of Mr. Q. in the library, because some friend of Mr. Q.'s was at that moment vividly picturing to himself the late librarian in his old haunts.