Decoloration of Flowers by Fumes of Sulphur
Dissolve some sulphur in a small dish which will inflame by contact with air thus forming sulphuric acid fumes. Cover the dish with a conical chimney made of tin and expose to the upper opening the flowers that are to be decolored. The action is very rapid and in a short time myrtle, violets, bell flowers, roses, etc., will be rendered perfectly white.