Rival ocean divers, by Roy Rockwood 76085 [Subtitle: The search for a sunken treasure] [Author: Roy Rockwood] [Link: https://www.gutenberg.org/ebooks/76085] note: link will be active within two hours of posting. Thanks to Aaron Adrignola, Mary Meehan and the Online Distributed Proofreading Team at https://www.pgdp.net (This book was produced from images made available by the HathiTrust Digital Library.) Regards, Al