Rock Blasting, by Geo. G. André 55051 [Subtitle: A Practical Treatise on the Means Employed in Blasting Rocks for Industrial Purposes] [Link: http://www.gutenberg.org/5/5/0/5/55051 ] [Files: 55051-0.txt; 55051-h.htm] Thanks to Chris Curnow, Harry Lamé 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