Produced by Chris Curnow, RichardW, and the Online Distributed Proofreading Team at http://www.pgdp.net (This file was produced from images generously made available by The Internet Archive) The practical portion of the present work has in part already appeared as an article, by one of the authors, in ‘Spons’ Encyclopædia of the Industrial Arts.’ Since its publication, however, many and important improvements have been introduced in this, as in other branches of the art of paper-making, which necessitated considerable additions to the original article. It has at the same time been to a great extent re-written, and, as the authors hope, improved.…
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