The knowledge machine, by Edmond Hamilton 69665 [Author: Edmond Hamilton] [Link: https://www.gutenberg.org/6/9/6/6/69665] [Files: 69665-0.txt; 69665-h.htm] Thanks to Greg Weeks, Mary Meehan and the Online Distributed Proofreading Team at http://www.pgdp.net Regards, Al