It is only necessary to become deeply interested in coincidences, to look about with eyes open and eager to detect them, in order to discover them on all sides; resolve to record all that come to hand, and they seem to multiply until you can regard yourself and your friends as providentially favored in this direction. If your calling develops a taste for matters of this kind,--for example, if you are a writer, with a keen sense for the literary possibilities and dramatic effects of such coincidences, or if you are of an imaginative turn of mind with a pronounced or a vague yearning for the interesting or the unusual; if you have a more generous or more persistent endowment of the day-dreaming, fantastic, self-dramatization of adolescence, that is half unreal and yet half externalized in the vividness of youthful fancy,--is it strange that you should meet with more of these "psychic experiences" than your prosaic neighbor whose thoughts and aspirations are turned to quite other channels, and to whom an account of your experiences might even prove tiresome? If you cultivate the habit of having presentiments, and of regarding them as significant, is it strange that they should become more and more frequent, and that among the many, some should be vaguely suggestive, or even directly corroborative of actual occurrences? The frequent coincidences, which form so influential a factor in disseminating an inclination towards such an hypothesis as telepathy, are doubtless largely the result of an interest in these experiences. This interest is very natural and proper, and when estimated at its true value is certainly harmless; it may indeed contribute material worthy of record for the student of mental phenomena,--or it may give spice to the matter-of-fact incidents of a workaday existence. To many minds, however, the temptation to magnify this interest into a significant portion of one's mental life, to invest it with a serious power to shape belief and to guide conduct, is unusually strong, in some cases almost irresistible. It is this tendency that is essentially antagonistic to a logical view and therefore to a scientific study of these irregular mental incidents; it is this tendency that is responsible for much of the spurious and the unwholesome interest in the problems of mental telegraphy.