Twins and Telepathy.--There is a definite popular impression that twins are gifted with the power of telepathic communication much more than others. Accepting Sir Wm. Crookes' theory, the possibility of mental reciprocal influence, even at a distance, is greater for them, since their brain cells must be considered as having corresponding moments of vibration. Twins of the same sex, especially those who resemble one another closely, are usually born from a single ovum. The intimate relations of two such beings to each other can be readily understood, so that we have many stories of mental communication at long distances and curious warnings, forebodings and communications of danger, and especially of sickness and death. Especially does one find stories of wraith-like appearances of one to the other of such persons at the moment of death. A series of these stories, apparently well authenticated, is published by the Psychic Research Society. There are also a number of tales, seemingly well attested, of cloud-like shapes of other persons at the moment of death. As a consequence, there has been developed an idea that there is some evidence of the distinct possibility of such appearances when the soul leaves the body. It, however, seems very doubtful whether these are anything more than a very striking coincidence. Twins are likely to be almost constantly in one another's minds, so there is abundant {147} room for coincidences. But any number of twins have died at a distance from each other without there being any such warning. Occasionally such startling appearances occur in connection with people who are so slightly related, or whose existence bears such slight importance to each other, that it is hard to understand why the appearance may have come. Whether they are anything more than the figment of an excited imagination remains to be seen, for, while we have a little positive evidence, this only emphasizes the possibility of coincidental day-dreaming in nervous persons.