http://book.klll.cc/ebooks/author/9166.opds?sort_order=release_date 2025-08-14T11:04:26Z Books by Leffingwell, Albert (sorted by release date) Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-08-14T11:04:26Z https://book.klll.cc/ebooks/author/9166.opds?sort_order=title Sort Alphabetically by Title 2025-08-14T11:04:26Z https://book.klll.cc/ebooks/author/9166.opds?sort_order=downloads Sort by Popularity 2025-08-14T11:04:26Z https://en.wikipedia.org/wiki/Albert_Leffingwell_(physician) See also: en.wikipedia 2025-08-14T11:04:26Z https://book.klll.cc/ebooks/32033.opds Vivisection Albert Leffingwell 2025-08-14T11:04:26Z https://book.klll.cc/ebooks/20222.opds An ethical problem; or, Sidelights upon scientific experimentation on man and animals Albert Leffingwell