At the moment his train went down the bank the thought of his wife and daughter came very vividly to his mind. For a moment the awful position in which they would be placed if anything serious happened to him occupied his mind to the exclusion of all other thoughts. As soon as he could, he telegraphed home that he was unhurt, with the understanding that the telegram should not be delivered before the following morning. During the night mother and daughter sleeping in adjoining rooms were wakened at the same moment, and very seriously disturbed, by something, they knew not quite what. They rose at once to go to each other and met at the door. They felt vaguely that father was in some way connected with their awakening and disturbance of mind. After they received his telegram they were sure that what disturbed them during the night was the telepathic communication of father's danger. Each had, however, deliberately kept from speaking of her impression. When they found that he had passed through the danger unhurt, they were sure that it was a call from him that each had heard. This bears most of the ear-marks of a genuine case of telepathy. Here are minds whose cells by custom and inheritance are finely attuned to those of a distant mind that is suddenly very much disturbed. If the perturbations of that first mind were carried through the ether by a sort of wireless telegraphy, it would apparently not be very surprising. So carried, they woke the receptive cells of similar minds at a long distance, and mother and daughter felt the thrill at the same instant. Vague though it was, there was a telepathic message. But there were other passengers in this train who had near and dear relatives, yet none of them received communications. There have been literally hundreds of thousands of other accidents in the past fifty years of railroading in which passengers who have been put in very serious danger, have thought intensely of their loved ones, and yet, there has been at most only a dozen or so examples of vague telepathy of this class. Similar cases to this are extremely rare, though accidents in America are very frequent. At most, then, we are in the presence of a very exceptional case. Such cases would mean nothing as evidence for a scientific law, since they occur so rarely as to aptly exemplify the old adage that the exception proves the rule. The rule evidently is that there is no communication at a distance, hence the surprise when there seems to be some reason for thinking that a communication has actually taken place. Instead of proving that telepathy occurs, such cases make it clear, to the limit of demonstration, that telepathy does not occur unless some extremely special conditions intervene to make it possible.