The square sapphire at the back of the medallion is of poor quality and imperfect color; about it are sixteen settings, containing respectively, (1) (lacking), (2) a pearl, (3) a garnet, (4) a pearl, (5) an emerald, (6) a pearl, (7) a garnet, (8) a pearl, (9) an emerald, (10) a pearl, (11) a garnet, (12) a pearl, (13) an emerald, (14) a pearl, (15) a garnet, (16) a pearl. On the band are set the following stones: (1) a pearl, (2) a sapphire, (3) a pearl, (4) an amethyst, (5) a pearl, (6) a sapphire, (7) a pearl, (8) an amethyst, (9) a pearl, (10) an almost white sapphire, (11) a pearl, (12) an amethyst, (13) a pearl, (14) a white sapphire. In the summer of 1804, Empress Josephine went to Aix-la-Chapelle (Aachen) to take the waters there, and during her stay, on August 1, she visited the tomb of Charlemagne in the Cathedral. We are told that Napoleon, who joined Josephine at Aix-le-Chapelle on September 3, had already _authorized_ the Cathedral chapter to part with certain of the relics and bestow them upon Josephine at the time of her visit to the tomb. This authorization, of course, was only a polite equivalent for a command, and was duly carried out, the most prized object secured by Josephine being precisely this famed talisman. It eventually came into the hands of Hortense, Josephine’s daughter, the mother of Napoleon III, and was inherited by him. It is said to be now in a private collection in Paris.[583] Empress Eugénie is stated to have worn it at the time of the birth of the Prince Imperial, and to have further shown her belief in the mystic, or magic, virtues of the talisman by sending it several years later to Biarritz, that it might be kept for a time in the sick-room of M. Bacciochi, when he was prostrated by illness in that city.[584] An Anglo-Saxon treatise on the medical art, from the beginning of the tenth century, the original manuscript of which was owned by an Anglo-Saxon leech named Bald, as testified to by an entry on the title-leaf, gives the agate a prominent place as a talismanic and curative agent. More especially is its power over the demon-world emphasized. Indeed it is asserted to serve as a sort of diagnostic of demoniacal possession, the words being: “The man who hath in him secretly the loathly fiend, if he taketh in liquid any portion of the shavings of this stone, then soon is exhibited manifestly in him that which before secretly lay hid.” Less unfamiliar to those acquainted with the early literature on the subject are the statements that the wearers of agates were guarded against danger from lightning, and from venom. The liquid “extract of agate,” taken internally, also produced smooth skin and rendered the partaker immune from the bites of snakes.[585]