A. M Bailey, of Paris, has (according to Nature) invented an electric spark pen which possesses some points of interest. If a sheet of thin paper is attached to a plate of copper or zinc, it is stated that an engraving may be made with extraordinary facility by means of this pen. If One of the poles of a Ruhmkorff machine is attached to the plate and the other to the upper end of the pen, the current will run through, and in drawing the paper is perforated. When the drawing is finished, ink is laid on with an ordinary roller, and the greasy fluid -penetrates through the holes. The plate is then plunged in water, which detaches the paper, and it is ready for immersion in the acid. The advantage claimed for this method is that the artist does all parts of his work, and has no more trouble than if he were working with an ordinary pencil. He can even work in a dark room without any other light than the glare from the induction spark.
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Akaroa Mail and Banks Peninsula Advertiser, Volume 3, Issue 275, 7 March 1879, Page 3
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178Untitled Akaroa Mail and Banks Peninsula Advertiser, Volume 3, Issue 275, 7 March 1879, Page 3
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