http://book.klll.cc/ebooks/author/51058.opds?sort_order=title 2025-11-17T03:45:11Z Books by Ferguson, James Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-11-17T03:45:11Z https://en.wikipedia.org/wiki/James_Ferguson_(Scottish_astronomer) See also: en.wikipedia 2025-11-17T03:45:11Z https://book.klll.cc/ebooks/60619.opds Astronomy Explained Upon Sir Isaac Newton's Principles James Ferguson