http://book.klll.cc/ebooks/subject/26047.opds 2025-08-12T16:27:39Z Books about Langley, S. P. (Samuel Pierpont), 1834-1906 (sorted by popularity) Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-08-12T16:27:39Z https://book.klll.cc/ebooks/44466.opds The First Man-Carrying Aeroplane Capable of Sustained Free Flight: Langley's Success as a Pioneer in Aviation Albert Francis Zahm