Survival of the fittest, by Gene L. Henderson 70559 [Author: Gene L. Henderson] [Link: https://www.gutenberg.org/7/0/5/5/70559] [Files: 70559-0.txt; 70559-h.htm] Thanks to Greg Weeks, Mary Meehan and the Online Distributed Proofreading Team at http://www.pgdp.net Regards, Al