This most interesting seal is described by the Rev. C. W. King, the writer on Antique Gems. It is carnelian, octagonal-shaped, and upon it is engraved the legend: “The slave Abraham relying upon the Merciful (God).” Napoleon III wore it on his watch-chain. He said about it: “The First Consul picked it up with his own hands during the campaign in Egypt and always carried it about him, as his nephew did later.” The Prince Imperial received it with the following message: “As regards my son, I desire that he will keep, as a talisman, the Seal which I used to wear attached to my watch.” He carried the seal upon a string fastened about his neck in obedience to the injunction of his father. At the time of his lamentable death it must have been carried off in South Africa by the Zulus, when they stripped his body, and it has never been recovered.] An Armenian writer of the seventeenth century reports that in India the _lâl_ or balas-ruby, if powdered and taken in a potion was believed to banish all dark forebodings and to excite joyous emotions. To the carnelian was attributed a virtue somewhat analogous to that ascribed to the turquoise, as anyone wearing a carnelian was proof against injury from falling houses or walls; the writer emphasizes this by stating that “no man who wore a carnelian was ever found in a collapsed house or beneath a fallen wall.”[62] Chalcedony [Illustration: CHALCEDONY VOTIVE CHARM FROM MEXICO. Aztec. Field Museum, Chicago.] [Illustration: CURIOUS ALTAR OF POWALAWA INDIANS OF ARIZONA. The ceremonial objects are grouped around a crystal of rock-crystal in the centre. (See page 254.)] An ingenious though far-fetched explanation of the power attributed to chalcedony of driving away phantoms and visions of the night is supplied by Gonelli, writing in 1702. For him the source of this asserted power was to be found in what has been erroneously termed the alkaline quality of the stone. This dissipated the evil humors of the eye, thus removing the diseased condition of that organ which caused the apparitions to be seen.[63] However absurd this explanation may be, it nevertheless shows that the author put little faith in visible ghosts, and rightly enough recognized the purely subjective character of such phenomena. Chrysoberyl The cat’s-eye variety of chrysoberyl, or precious cat’s-eye, is used by the natives of Ceylon as a charm against evil spirits. As a proof of the high value set upon the gem in India, De Boot states that a cat’s-eye estimated as worth ninety gold pieces in Lusitania was sold for six hundred in India.[64] Some of the finest specimens come from Ceylon. Chrysolite