http://book.klll.cc/ebooks/subject/27276.opds2025-09-21T15:18:30ZBooks about Mathematics -- Study and teaching -- History -- 17th century (sorted by popularity)Free eBooks since 1971.Project Gutenberghttps://book.klll.ccwebmaster@gutenberg.orghttps://book.klll.cc/gutenberg/favicon.ico2512025-09-21T15:18:30Zhttps://book.klll.cc/ebooks/46815.opdsWilliam Oughtred: A Great Seventeenth-Century Teacher of MathematicsFlorian Cajori