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In the eighth year, Crollius Oswald Croll, early 17th-century chemist first proposed this method of healing on the occasion of the Unguentum Armarium Weapon Salve. After him, Goclenius of Marburg delivered an oration in favor of this matter, which he later expanded and refined and published to the public in the thirteenth year. Against this, in the seventeenth year, Johannes Robertus, a Jesuit, wrote an Anatomy; though not without consequence, since Goclenius himself replied to him in the same year in his Synarthrosis Magnetica Magnetic Jointing. To both of these, in the twentieth year, Johannes Baptista Helmontius Jan Baptist van Helmont, Belgian chemist and physician opposed himself in a disputation published in Paris in the twenty-first year. Many others have also treated this subject here and there: Wittichius, Gabelcoferus, Hartmannus, Colerus, and more extensively Robert Fludd, whom, however, Kircher refutes, agreeing in this matter