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.

To recover the Colour of black Cloth, when decay'd.

Take Fig-tree Leaves, boyl them well in Water, wash your Cloth in it, dry it in the Sun, and it will be a much fairer black.