have been explained in many different ways by the commentators, one of whom (Steevens) saw in them a reference to the following story current in Venice in the sixteenth century. A Jew, after long and perilous wanderings in the East, succeeded in bringing with him to Venice a great number of fine pearls. These he disposed of there at satisfactory prices, with the exception of one pearl of immense size and extraordinary beauty, upon which he set a price so high that no one was willing to pay it. Finally, the Jew invited all the leading gem-dealers to meet him on the Rialto, and when as many of them as answered his call had assembled, he once more, and for the last time, offered his peerless pearl for sale, detailing all its perfections in eloquent terms. However, he made no concession in the price, and the dealers unanimously refused to purchase it, probably expecting that the Jew would at last be forced to make a reduction, but to their amazement, instead of doing this, he threw his pearl before their very eyes into the waters of the canal, preferring rather to lose it than to cheapen it.[686] The belief that the growth of pearls in the pearl-oyster was due to rain-drops is perpetuated in the Arab proverb: “The rain of the month of Nisan brings forth pearls in the sea and wheat on the land.”[687] This spring month was, and is still, the period when pearl-fishing begins in the Orient. Another pearl proverb repeats the evangelical saying in this form: “Do not throw pearls under the feet of swine.” A Tonquinise legend of the origin of pearls represents them as springing from the blood of a young princess who was slain by the king, her father, because she had betrayed to her husband the secret of a magic bow, whose death-dealing arrows always flew to their mark. In his anger at his daughter’s act, the father drew his scimitar and beheaded her, but with her last breath she prayed that her blood might be turned to pearls. Her prayer was heard and now the finest pearls of this land are found in the waters about the place where she died.[688] From blue sapphires the color may be extracted so that they become white, in such sort that they excellently imitate the diamond, so well, indeed, that the fraud can only be detected by an expert jeweller. This art was known at an early period, and no doubt induced many writers to ascribe certain of the qualities of the diamond to the sapphire. As illustrating this, a Rabbinical author states that a certain man went to Rome to sell a sapphire. The purchaser said to him: “I will buy it provided I may first test it.” He placed it on an anvil and struck it with a hammer; the anvil was split and the hammer was broken to pieces but the stone remained in its place uninjured.[689] [Illustration: CLEOPATRA DISSOLVING HER PRICELESS PEARL AT THE BANQUET TO MARK ANTONY Tapestry. Eighteenth century. ]