ENGRA VIXG. 49 



Aquatin'ta (L. aqua, water, and It. fintn, dye). — A method 

 of en^raviug by aqna-forlis, by whicli an effect is pro- 

 duced resembling a drawing in water-colors or Indian ink. 



Biting" in. — The process of corroding copper and steel plates 

 with acids. 



Calcography (Gr. calx, lime, and grajyho, I write). — An en- 

 graving after the manner of a drawing in chalk. 



Cerog'raphy (L. cera, wax, and Gr. grapho, I write). — The 

 art of engraving on loax spread on a sheet of copper, 

 from which a stereotype plate is taken. 



Chalcography ( Gr. chalkos, copper, and grapho, I write). — 

 The art of engraving on copper or on brass. 



Cop'per-plate. — A plate of polished copper on which concave 

 lines are engraved or corroded according to some delineated 

 figure or design. This plate, when charged with any 

 colored fluid, imparts an impression of the figure or de- 

 sign to paper or parchment. 



Coun'ter-proof. — A print taken off from another fresh printed, 

 which, by being passed through the press, gives the figure 

 of the former, but inverted. 



Dactylography (Gr. daktn/os, a finger, and grapho, I write). 

 - — -The science or art of gem engraving. 



Damaskeening. — The art of engraving on and inlaying iron 

 or steel with gold or silver. 



Ectypog'raphy (Gr. cldupos, worked in high relief, and grapho, 

 I write). — A method of etching in which the lines of the 

 design upon the plate are in relief instead of being de- 

 pressed or cut iuto it. 



Elec'trotint. — A method of etching hy galvanism. The sub- 

 ject being painted on copper with a thick varnish or paint, 

 the plate is submitted to the electro-coppering process, by 

 which a deposit is made upon it, forming another plate 

 with the lines of the device marked in intaglio, or sunken. 



Embossing (Fr. hosse. a protuberance). — The art of producing 

 figures in relief from a plane surface of metal by means 

 of a chisel or punch. 



Etching. — A mode of engraving by wliicli figures or designs 

 are produced on copper or other metallic plates hy means 

 of lines or strokes first drawn, and then eaten or corroded 

 by aqua-fortis. 



Glyp'tics (Gr. gluptos, engraved). — The art of engraving Jig- 

 ares on precious stones. 

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