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STONES OF HEALING
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times bore the generic name theriac, or theriac, this desig­nation being derived from the Greek therion, signifying a beast, more specifically a poisonous animal and hence also a serpent. These preparations were primarily antidotes for poison, but were also freely administered for any form of "blood-poisoning," for malarial infection, malignant fevers and the like. Principal ingredients were the "Armenian stone" (a friable, blue carbonate of copper), pearls, charred stag's-horn, and coral. The Veronese physician, Francesco India, confidently affirms that this remedy not only cured the plague, but also protected those who had partaken of it from contracting the disease ; this was said to be more espe­cially true of the theriaca Andromachi, or Venice treacle as it was popularly called, which purported to be the inven­tion of a Roman or Greek physician, Andromachus, who composed some medical poems dedicated to Caesar.6
In medieval Bohemia the knowledge of precious stones and their employment for curative purposes is well attested. There exists a Bohemian manuscript list of precious stones dated in 1391, in which no less than 55 different gems are noted. Their medicinal use in Bohemia at this time is vouched for by the Synonima Apothecariorum where precious stones are listed among the materials of the apothe­caries'art.7
In the testaments of royal and princely personages, medical stones are often bestowed as precious legacies. Thus in the will of the Hessian prince, Henry VIII of Fürstenberg, the following stones are mentioned as espe­cially costly objects: a "crabstone" (Krebstein), a blood­stone, and a gravel-stone, the latter being a piece of jade or nephrite.8 The crabstone, sometimes called crab's-eye, is a chalky concretion which forms on either side of the stomach
•Francisci Indie, "Hygiphylus eive de febre maligna dialogue," Verone, 1593, pp. 125, 126.
'Dr. B. Jezak, "Aus dem Reiche der Edlesteine," Prag, 1914, p. 65. •Kobert, "Ein Edlestein der Vorzeit," Stuttgart, 1910, p. 36.