BLUE TO WHITE.
Dissolve a small lump of indigo in sulphuric acid by the aid of moderate heat, and you will obtain an intense blue colour; add a drop of this to half a pint of water, so as to dilute the blue; then pour some of it into strong chloride of lime, and the blue will be bleached with almost magical velocity. This trick is called “The Restoration”—of the Bourbons understood, since their colour, the Royalist white, replaces the Republican blue.