http://book.klll.cc/ebooks/author/43230.opds?sort_order=downloads 2025-11-16T13:45:58Z Books by Maxim, Hiram S. (Hiram Stevens) Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-11-16T13:45:58Z https://en.wikipedia.org/wiki/Hiram_Maxim See also: en.wikipedia 2025-11-16T13:45:58Z https://book.klll.cc/ebooks/45344.opds Artificial and Natural Flight Hiram S. Maxim