The magic of jewels and charms

Of the so-called Median stone we read, in Konrad von Megenberg’s “Buch der Natur,”[305] that it had powers of good and evil; “for when dissolved in the milk of a woman who has borne a son, it restores sight to the blind.” It also cured gout and insanity. If, however, anyone were so ill-advised as to dissolve the stone in water and partake of the solution, he would die of hasty consumption; or if he simply bathed his forehead with the liquid, he would be robbed of his sight.