This experiment was made a year or two ago near Guildford by a committee of water engineers and geologists, and also by a similar committee in Paris. Only a dozen or two of the water-finding dousers came forward and submitted to be thus tested, and they entirely failed to show any special capacity for discovering water. They failed signally. But then the believers may, of course, retort that the really gifted superior dousers had refused to have anything to do with the inquiry, and that "their withers are unwrung." The same kind of test was some years ago made with the so-called "spiritualist mediums." A banknote for £1000 was placed in a very carefully sealed envelope, and deposited in a safe in a bank. Its owner advertised his offer to present the note to any spiritualists who would correctly state the number of the note. The offer remained open for some years, but the spiritualists were unable to gain information about this very simple matter by their methods of consulting supposed "spirits," and the note was never claimed. Of course, some of those who believe in spiritualism, maintain that the genuine "mediums," for some reason not altogether clear, refused to make the attempt to discover the number. Others put forward the view that the "spirits" took offence at the proposed test, and refused to reveal the number. Others, again, took the line that this was just one of the few things about which "spirits" are unable to communicate with mortals, or are forbidden by superior order to reveal.