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 with the greatest care,” he adds, “into the question whether the hazel rod had any sympathy with gold and silver, and whether any natural property set it in motion. In like manner I tried whether a ring of metal, held suspended by a thread in the midst of a tumbler, and which strikes the hours, is moved by any similar force. I ascertained that these effects could only have rise from the deception of those holding the rod or the pendulum, or, may be, from some diabolic impulsion, or, more likely still, because imagination sets the hand in motion.”

The Sieur le Royer, a lawyer of Rouen, in 1674, published his “Traité du Bâton universel,” in which he gives an account of a trial made with the rod in the presence of Father Jean Franccois, who had ridiculed the operation in his treatise on the science of waters, published at Rennes in 1655, and which succeeded in convincing the blasphemer of the divine Rod. Le Royer denies to it the power of picking out criminals, which had been popularly attributed to it, and as had been unhesitatingly claimed for it by Debrio in his “Disquisitio Magica.”

And now I am brought to the extraordinary story of Jacques Aymar, which attracted the attention of Europe to the marvellous properties of