Each of the following well-known Scholars reviewed one or more Chapters, and made valuable suggestions: C. C. ABBOTT, M.D., Author of "Primitive Industry." Prof. F. W. PUTNAM, Curator of Peabody Museum of Archaeology and Ethnology, Harvard University. A. F. BANDELIER, Explorer for Archaeological Institute of America, author of "Archaeological Tour in Mexico." Prof. CHARLES RAU, Curator of Archaeological Department of Smithsonian Institution. ALEXANDER WINCHELL, LL.D., Professor of Geology and Paleontology, University of Michigan. CYRUS THOMAS, PH.D., Of the Bureau of Ethnology. ...