I mention this because I have met with, and do meet with, people constantly, who admit this class of facts, while they declare they can not believe in ghosts; the instances, they say, of people being seen at a distance at the period of their death, are too numerous to permit of the fact being denied. In granting it, however, they seem to me to grant everything. If, as I have said above, the person be dead, the form seen is a ghost or spectre, whether he has been dead a second or a century; if he be alive, the difficulty is certainly not diminished; on the contrary, it appears to me to be considerably augmented; and it is to this perplexing class of facts that I shall next proceed, namely, those in which the person is not only alive, as in some of the cases above related, but where the phenomenon seems to occur without any reference to the death of the subject, present or prospective. In either case, we are forced to conclude that the thing seen is the same; the questions are, what is it that we see, and how does it render itself visible? and, still more difficult to answer, appears the question, of how it can communicate intelligence, or exert a mechanical force. As, however, this investigation will be more in its place when I have reached that department of my subject commonly called ghosts, I will defer it for the present, and merely confine myself to that of doubles, or doppelgängers, as the Germans denominate the appearance of a person out of his body. In treating of the case of Auguste Müller, a remarkable somnambule, who possessed the power of appearing elsewhere, while his body lay cold and stiff in his bed, Professor Keiser, who attended him, says, that the phenomenon, as regards the seer, must be looked upon as purely subjective—that is, that there was no outstanding form of Auguste Müller visible to the sensuous organs, but that the magnetic influence of the somnambule, by the force of his will, acted on the imagination of the seer, and called up the image which he believed he saw. But then, allowing this to be possible, as Dr. Werner says, how are we to account for those numerous cases in which there is no somnambule concerned in the matter, and no especial rapport, that we are aware of, established between the parties? And yet these latter cases are much the most frequent; for, although I have met with numerous instances recorded by the German physiologists, of what is called far-working on the part of the somnambules, this power of appearing out of the body seems to be a very rare one. Many persons will be surprised at these allusions to a kind of magnetic phenomena, of which, in this country, so little is known or believed; but the physiologists and psychologists of Germany have been studying this subject for the last fifty years, and the volumes filled with their theoretical views and records of cases, are numerous beyond anything the English public has an idea of.