How to Become a Lightning Calculator, by Anonymous 65078 [Link: https://www.gutenberg.org/6/5/0/7/65078 ] [Files: 65078-0.txt; 65078-h.htm] Thanks to Demian Katz, Craig Kirkwood, and the Online Distributed Proofreading Team at https://www.pgdp.net (Images courtesy of the Digital Library@Villanova University (http://digital.library.villanova.edu/)) Regards, Al