Century Dictionary and Cyclopedia
- n electrography Galvanography.
- n electrography Specifically The process of copying a fine engraving on copper or steel by means of an electro-copper deposit.
- n electrography In photography, a process by which a dry sensitized paper is made to reproduce a design through the agency of electric sparks. It consists in placing a bromo-iodide of silver paper on a spotted metallic plate, pressing the same down by means of a glass, and passing sparks from a powerful Leyden jar along the metallic plate. Each break in continuity of the metallic surface causes a spark which discolors the paper at this point.