An Introduction to the History of Science, by Walter Libby 40706 [Link: http://www.gutenberg.org/4/0/7/0/40706 ] [Files: 40706.txt; 40706-8.txt; 40706-h.htm; 40706-0.txt; ] [Clearance: 20080712115813libbymaphd] E-text prepared by Charlene Taylor, Paul Clark, and the Online Distributed Proofreading Team (http://www.pgdp.net) from page images generously made available by Internet Archive/American Libraries (http://archive.org/details/americana) Thanks, Joe Loewenstein