Modern curiosities of art & nature extracted out of the cabinets of the most eminent personages of the French court : together with the choicest secrets in mechanicks, communicated by the most approved artists of France
Lémery, Nicolas, 1645-1715.

For the same.

Take an handful of Wheat Bran, boil it in a Posnet with a pint of Water; and when 'tis boil'd, pour out half of the said Water, and then in an earthen Porringer varnish'd, where∣in Page  115shall be the Pearls strung, which you shall let steep therein till the Water be almost cold, that you may rub them gently with your hands, till the Water be wholly cold; then throw away that Water, and put on new upon the Pearls; do thus often, and then your Water will be clear, which you shall warm, and put into the said Porringer, wherein you shall clear the said Pearls without rubing them, and do it so, reiterating it with a second warm Water: at last you shall put up the said Pearls without fouling or unstringing them, on white Paper, and carry them into a Cellar upon a Board or Bench without covering them, and let them remain there only twenty four hours.

Note. For fear the Rats or Cats should en∣ter, and throw them down, you must put at the bottom some weighty thing.