ain white in the impression.* Theopen spaces of the plate are now dusted over evenly, butnot too thickly, with finely powdered asphaltum or resin, * This is the early method as invented by Le Prince. The moreusual process in later times, at any rate among English aquatintengravers, was to cover the… … Fig. 7-The Mattoir(reduced). and the plate is warmed to such a degree as to cause theparticles of resin or asphaltum to melt and cling to the platewithout running into one another. If the plate be nowplaced in acid, the minute spaces that remainopen between the particles of resin are…
Engraving · Etching
Internet Archive · Getty Research Institute · Public Domain Mark 1.0. Free to use for anything.
