Musical Instruments (To Stain). CRImson - Boil one pound of ground Brazil-wood in three quarts of water for an hour; strain it, and add half an ounce of cochineal; boil it again for half an hour gently, and it will be fit for use. PuRple - Boil a pound of chip logwood in three quarts of water for an hour; then add four ounces of alum.