If the preceding example stood alone, or if, in parallel cases, no further phenomena manifested themselves, nothing more would be required to explain the facts than to suppose that the mental fellow-traveller reads all your thoughts, and adopts your own imagery and impressions. But there are not wanting cases in which the fellow-traveller has seen what was not in his companion’s mind, and was at variance with his belief; while subsequent inquiry has proved that the clairvoyante’s unexpected story was true. These more complicated cases prove that the clairvoyante _actually_ pays a mental visit to the scene. But she can do more; she can pass on to other and remoter scenes and places, of which her fellow-traveller has no cognizance. For example, a young person whom Mr. Williamson mesmerised became clairvoyant. In this state she paid me a mental visit at Boppard; and Mr. Williamson, who had been a resident there, was satisfied that she realized the scene. Afterwards I removed to Weilbach, where Mr. Williamson had never been. Then he proposed to the clairvoyante to visit me again. She reached, accordingly, in mental travelling, my former room in Boppard; and expressed surprise and annoyance at not finding me there, and at observing others in its occupation. Mr. Williamson proposed that she should set out, and try to find me. She said, “You must help me.” Then Mr. Williamson said, “We must go up the river some way, till we come to a great town,” (Mainz.) The clairvoyante said she had got there. “Then,” said Mr. Williamson, “we must now go up another river, (the Maine,) which joins our river at this town, and try and find Dr. Mayo on its banks somewhere.” Then the clairvoyante said, “Oh, there is a large house; let us go and see it; no, there are two large houses—one white, the other red.” Upon this, Mr. Williamson proposed that she should go into one of the two houses, and look about; she quickly recognised my servant, went mentally into my room, found me, and described a particular or two, which were by no means likely to be guessed by her. When Mr. Williamson subsequently came to visit me at Weilbach, he was forcibly struck with the appearance of the two houses, which tallied with the account given beforehand by the mental traveller. I have not the smallest doubt she mentally realized my new abode. Then, how did she do all this?