And, in passing, it may be well here to mention an incident, for the truth of which the writer can vouch, and which may, perhaps, throw some light upon this vexed question, or give a clue to some earnest searcher into the cause of this mystery. A gentleman, being for the first time in his life in the city of Cincinnati, where he had not a single acquaintance, and having long been anxious to test this spiritualistic second sight, on the evening of his arrival muffled himself closely and attended a 'circle.' Summoning the spirit of a distant relation long deceased, he inquired first into his name, age, and residence; all of which were given correctly. Not a little startled with this result, he proceeded with his inquiries, and elicited the following information in regard to his family, viz.: that two of his brothers, named George and Henry, died before his own birth; that of these two George was the elder, but Henry died first. Astounded at the accuracy of these replies, he waited to hear no more, but at once left the circle, with his own faith quivering in the balance. On returning to his home, he related these circumstances to an elder sister, within whose recollection the birth and death of these children had occurred. She listened attentively to the close, and then quietly informed him that both the spirits and himself were in error, for that Henry was the elder and George died first. As these questions of age and date were the strongest points made by him in his spiritual consultation, and the points most relied upon to test the accuracy of the replies, this revelation at once upset all his doubts and fears, and restored him again to the faith of his fathers. He himself had always believed the facts to be as he had heard them from the medium, they having, by some means, been reversed in his mind in the absence of any other knowledge in the premises than that derived from hearsay, and that too long gone by. Now, in this instance, the mind of the medium was clearly _en rapport_ with that of the inquirer, and hence all the errors of the latter had been closely followed. The facts were given not as they really were, but as they existed in the mind of the inquirer. In other words, his mind was read by the medium as an open book. And while, in this case, this close copying of error at once precluded the idea of supernatural agency, the facts are interesting as furnishing a new line of inquiry, by showing that, in this instance at least--and if in this, why not in others?--the phenomena of spiritualism were closely allied to those of clairvoyance and mesmerism, and that the path of investigation into all these mysteries may be pursued by one and the same course of reasoning.