The evolution theory. Translated with the author's co-operation by J. Arthur Thomson and Margaret R. Thomson. . This book, "The evolution theory", by August Weismann, is a replication of a book originally published before 1904. It has been restored by human beings, page by page, so that you may enjoy it in a form as close to the original as possible. This book was created using print-on-demand technology. Thank you for supporting classic literature.