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 which is carried by workmen in mines, either in their belts or in their caps. He says that there are seven names by which this rod is known, and to its excellencies under each title he devotes a chapter of his book. The names are:—Divine Rod, Shining Rod, Leaping Rod, Transcendent Rod, Trembling Rod, Dipping Rod, Superior Rod. In his admirable treatise on metals, Agricola speaks of the rod in terms of disparagement; he considers its use as a relic of ancient magical forms, and he says that it is only irreligious workmen who employ it in their search after metals. Goclenius, however, in his treatise on the virtue of plants, stoutly does battle for the properties of the hazel rod. Whereupon Roberti, a Flemish Jesuit, falls upon him tooth and nail, disputes his facts, overwhelms him with abuse, and gibbets him for popular ridicule. Andreas Libavius, a writer I have already quoted in my article on the Wandering Jew, undertook a series of experiments upon the hazel divining rod, and concluded that there was truth in the popular belief. The Jesuit Kircher also “experimentalized several times on wooden rods which were declared to be sympathetic with regard to certain metals, by placing them on delicate pivots in equilibrium, but they never turned on the approach of metal.” (De