Little Masterpieces of Science, by Various 29241 [Subtitle: Invention and Discovery] [Editor: George Iles] [Link: http://www.gutenberg.org/2/9/2/4/29241 ] [Files: 29241.txt; 29241-8.txt; 29241-h.htm] Thanks to Sigal Alon, Marcia Brooks, Fox in the Stars and the Online Distributed Proofreading Team at http://www.pgdp.net David