The Pneumatics of Hero of Alexandria, by Hero of Alexandria 77400 [Author: Hero of Alexandria] [Editor: Bennet Woodcroft] [Translator: Joseph George Greenwood] [Link: https://www.gutenberg.org/ebooks/77400] note: link will be active within two hours of posting. Thanks to Tim Lindell, A Marshall 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