Pyrometry, by Chas. R. Darling 56353 [Subtitle: A Practical Treatise on the Measurement of High Temperatures] [Link: http://www.gutenberg.org/5/6/3/5/56353 ] [Files: 56353-0.txt; 56353-h.htm] Thanks to Chris Curnow, Paul Marshall 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