Art and Practice of Silver Printing, by H. P. Robinson and Capt. Abney 42547 [Link: http://www.gutenberg.org/4/2/5/4/42547 ] [Files: 42547.txt; 42547-8.txt; 42547-h.htm] Thanks to The Online Distributed Proofreading Team at http://www.pgdp.net (This file was produced from images generously made available by The Internet Archive/American Libraries.) This is DP-US's 25,000th unique submission to Project Gutenberg. Regards, Al