Astounding Stories, July, 1931, by Various 31168 [Link: http://www.gutenberg.org/3/1/1/6/31168 ] [Files: 31168.txt; 31168-8.txt; 31168-h.htm] Thanks to Sankar Viswanathan, Greg Weeks, and the Online Distributed Proofreading Team at http://www.pgdp.net David