A loadstone amulet for the cure of gout is stated to have been worn by a native of the English county of Essex. The stone was sewed up in a flannel covering to which was attached a black ribbon for suspension from the neck. Of course it was worn beneath the clothing, although the encasing flannel must have prevented direct contact with the skin. This piece of magnetic iron ore measured about an inch and a half in width, and was two-tenths of an inch thick. The patient, a Mr. Pelly, was an elderly man, who had suffered for some time from annually recurring attacks of gout which prostrated him for from three to four months. Learning of the reputed virtues of loadstones, more especially of those of Golconda, he sent to India for one and he is said to have been thereby relieved of his disease.[125] [Illustration: Vignette from the “Lapidario de Alfonso X, Codice Original” (fol. 12). Published in Madrid, 1881. This design shows the finding of the “Stone of Sterility.” Author’s library. ] In Persia a certain stone received the name of _Shahkevheren_ or “King of Jewels,” for it was reputed to attract all other precious stones, as the loadstone did iron. The greatest of the Sassanian monarchs, Khusrau II (590–628), had occasion to test the power of this wonderful stone. He had lost a ring of great price in the river Tigris, near the spot where some time later the Mohammedans founded the city of Bagdad. Taking a _shahkevheren_ the monarch attached it to a line and literally fished for his ring, using the magic stone as a bait. We are told that the ring was recovered, and this must have greatly added to the reputation of the “King of Jewels.”[126] In the ninth century Arabic treatise, translated from an earlier Syriac text and falsely attributed to Aristotle, a number of fabulous stones are noted. All of these were said to have attractive properties, and as the loadstone attracted iron, they attracted various substances, each having its special affinity. First, we are told of the stone that attracted gold, then, in turn, of stones that attracted silver, copper, and other metals.[127] Probably the legend of the finding of these stones is based upon the employment of certain mineral substances in the purifying of gold, silver, etc. Among other fabulous or almost fabulous stones was one called _askab_, which, although of mean appearance, was able to break the diamond just as the diamond broke all other stones.[128] Have we here an allusion to the polishing of the diamond by its own dust? It is not improbable that this art, in an incomplete form, was known to the Hindus long before it was practised and perfected in Europe.