thing to deal with a gullible maiden who wants to know the color of her future husband's hair, and quite another to converse with the officers of the law. Most of the frauds which have any continued success owe it, in part at least, to an undue faith in the personal integrity of the practitioner. It seems a rude as well as an unkind thing to suppose that So-and-so, whose demeanor is so modest and frank and simple, whose sentiments are so elevated, whose whole personality seems calculated to inspire confidence, is really an outrageous deceiver. In many cases people have said in effect that, if they had to choose between believing a miracle and doubting the veracity of this or that engaging individual, they would believe the miracle. Yet time and again the engaging individual has been proved to be an impostor, and the miracle has fallen to the ground. One of the most remarkable cases of the kind is furnished by the history of the Keeley motor, the absolutely fraudulent character of which has lately been brought to light. Keeley professed to transcend all the known laws of physics and mechanics, and he talked a jargon which all acknowledged to be unintelligible, but the unintelligibility of which was ascribed by his devotees to the fact that he was really working outside of known laws, and could not be expected to translate his ideas into the language of everyday science. In this way what was really an adjunct to the imposture he was practicing was counted as a proof of the truth of his ideas and the reality of his work. Yet now we know that the whole business was a matter of hidden tubes and wires and pulleys and double axles, one concealed within the other, with a water motor hidden under the floor. Thus it was that the "ætheric vibrations" and all the other mysterious phenomena were produced. We remember a sermon that was preached some years ago by an earnest divine, who professed to see in the alleged effects produced by Keeley an explanation of the miracle of the casting down of the walls of Jericho. Keeley would take his harmonium and, striking a certain chord, would cause his motor to revolve. In like manner Joshua with his trumpets and pitchers made precisely the kind of noise required to produce the ætheric vibrations necessary to level the walls of the beleaguered city--a wonderful case of the most advanced science coming to the support of a venerable religious tradition! Unfortunately, the walls of Jericho must now be got down in some other way, since it is proved that when Keeley worked the harmonium he also worked the bulb of an air tube placed under his foot in the floor. But Keeley was so honest a man, so devoted to his profound researches, so true a type of the indomitable experimenter, that it was impossible for his friends and admirers to doubt him, even when he spoke of "the sympathetic negative attraction of the triune polar stream."