Photo-Lithography, by Georg Fritz 55971 [Translator: E. J. Wall] [Link: http://www.gutenberg.org/5/5/9/7/55971 ] [Files: 55971-0.txt; 55971-h.htm] Thanks to 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) David