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138                           PRECIOUS STONES.
of his wonderful strength, always wearing it when about to undertake one of his feats. But he must have forgotten to employ this talisman when he tried his last exploit.
The Carnelian (Sardius), called of old " Odem," i.e., of red hue, is a pale red variety of Chalcedony ; its colouring matter is a hydrated oxide of iron. It was considered among the Hebrews, and Arabs, to be an important preventive of illness; the former people ascribed to it the virtue of preserving life from the dangers of the Plague ; the latter people—even now— according to Niebuhr, continue to employ it as an efficient agent for arresting a flux of blood. " It is a Gem," wrote Schroder, 1669, " half transparent, like the water wherein flesh is washed ; or like bloody flesh ; hence it is called Carneolus, or Cornelian, from ' caro '—genitive 'carnis,'—flesh. They are not of one colour; some are red : some only a little bloody ; others are yellowish red." " The Babylonian Cornelians are best; the Indian, and Arabian are not despicable; nor the European." As for their virtues—" the pouder of them is good to drink against all fluxes ; carried about it makes cheerful minds, expels fear, makes couiage, destroys, and prevents fascinations, and defends the body against all poysons ; it stops blood by a peculiar property ; and, bound to the Belly, keeps up the Birth."
THE RUBY.
The flaming blood-red Buby, the '" Live-coal " of the Greeks, the Anthrax, which (under its name of Car­buncle) was among the twelve gems making up the sacred Ephod of the Hebrews, is one of the most mag­nificent of all Gems. It is of a phosphoric nature, and