By Cyrus Thomas, 1889 Cyrus Thomas published this short work to establish his uncertainty about who the Mound Builders were; however, he decides to identify them with, at least in part, the Five Civilized Nations of the Cherokee. Thomas is puzzled by the Eastern Hemisphere artifacts that continue to be discovered in undisturbed layers deep within the mounds themselves. So, he continues to question the identity of the builders of the mounds. These non-conforming artifacts have been gathered by Thomas, which he admits to having, yet they have never been shown or identified in the museums of today. Where is the unusual artifact collection of which Cyrus Thomas speaks? Currently, we do not know. This is a must-have book for all mound builder investigators. Softcover, illustrated, 54 pgs.