A long way back, by Ben Bova 72553 [Author: Ben Bova] [Link: https://www.gutenberg.org/7/2/5/5/72553] [Files: 72553-0.txt; 72553-h.htm] Thanks to Greg Weeks, Mary Meehan and the Online Distributed Proofreading Team at http://www.pgdp.net Regards, Al