Spon, Ernest, Haldane, Robert, Lock, Charles G. Warnford (Charles George Warnford), 1853-1909 · London ; New York : E. & F.N. Spon · leaf 173
te, by a etching board, place the copper plate on paper burnt under the back until the a thick piece of brown paper larger than surface shines, taking the same precau- the plate ; make two ribs of the same tions as before. Hold the plate in the paper, doubled four or more times, and left hand, with… … leaving open the bottom to admit the same time, having all the wicks burn- transfer paper, which introduce with the ing ; pass it rather quickly round the clialk side nest to the plate ; the uppei margin, and by degrees towards the
Workshop recipes · Technology · Industrial arts
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
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