http://www.gutenberg.org/ebooks/subject/20959.opds 2024-11-09T16:43:39Z Books about Monogenism and polygenism (sorted by popularity) Free eBooks since 1971. Project Gutenberg https://www.gutenberg.org webmaster@gutenberg.org https://www.gutenberg.org/gutenberg/favicon.ico 25 1 2024-11-09T16:43:39Z https://sendtokindle.compellingsciencefiction.com/ebooks/subject/20959.opds?sort_order=title Sort Alphabetically by Title 2024-11-09T16:43:39Z https://sendtokindle.compellingsciencefiction.com/ebooks/subject/20959.opds?sort_order=release_date Sort by Release Date 2024-11-09T16:43:39Z https://sendtokindle.compellingsciencefiction.com/ebooks/35167.opds Philological Proofs of the Original Unity and Recent Origin of the Human Race Arthur James Johnes 2024-11-09T16:43:39Z https://sendtokindle.compellingsciencefiction.com/ebooks/70009.opds The plurality of the human race G. Pouchet