http://book.klll.cc/ebooks/author/48048.opds?sort_order=release_date 2025-11-16T01:03:53Z Books by Bacon, Gertrude Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-11-16T01:03:53Z https://en.wikipedia.org/wiki/Gertrude_Bacon See also: en.wikipedia 2025-11-16T01:03:53Z https://book.klll.cc/ebooks/54799.opds Balloons, Airships, and Flying Machines Gertrude Bacon