The author sets out to prove his scientific thesis that men existed prior to the creation of the Biblical Adam. He points out in the preface that he does not assume a position of hostility toward the Bible or dispute the divine creation of Adam. Includes interesting fold out map attached to back cover. Several illustrations, prints of line drawings in ink. Published in 1880 by S. C. Griggs and Company of Chicago and Trubner and Company of London. 500 numbered pages including extensive index. Green cloth covered boards with worn edges. Spine is split at front and back covers but intact. Stain on page ends at top. Several annotations and underlined text in pencil. See photos for condition. A decent copy of a unique antique book!