http://book.klll.cc/ebooks/author/6926.opds?sort_order=release_date 2025-11-16T01:03:18Z Books by Powell, Baden Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-11-16T01:03:18Z https://en.wikipedia.org/wiki/Baden_Powell_(mathematician) See also: en.wikipedia 2025-11-16T01:03:18Z https://book.klll.cc/ebooks/16775.opds Biographies of distinguished scientific men. First series F. Arago