http://book.klll.cc/ebooks/subject/12780.opds?sort_order=downloads 2025-11-17T10:06:01Z Books about Astronomers -- United States -- Biography Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-11-17T10:06:01Z https://book.klll.cc/ebooks/19309.opds The Reminiscences of an Astronomer Simon Newcomb 2025-11-17T10:06:01Z https://book.klll.cc/ebooks/10202.opds Maria Mitchell: Life, Letters, and Journals Maria Mitchell