Guidebook of Palo Duro Canyon, by West Texas State Geological Society 50487 [Link: http://www.gutenberg.org/5/0/4/8/50487 ] [Files: 50487-8.txt; 50487-0.txt; 50487-h.htm] Thanks to Stephen Hutcheson, Dave Morgan and the Online Distributed Proofreading Team at http://www.pgdp.net Regards, Al