Chapter 39 DESIGN WITH PREPARING INK, COMBINED WITH SPATTERED AQUATINT

If a little dissolved gum is painted on a clean stone that then is inked over its whole surface with printing-ink, none will adhere where the gum is. In other words, the stone will have been prepared there. If the gum is permitted to dry before the ink is applied, those parts will become black, too; but as soon as a few drops of water are poured on