Culin, of the Brooklyn Institute of Arts and Sciences; the Contessa Casa Cortez, for Peruvian information, of Brooklyn; Dr. Charles B. Davenport, of the Carnegie Institution Laboratory, Cold Spring Harbor; Arthur C. Parker, archæologist, State Museum, Albany, N. Y.; A. S. Clark, antiquarian, Peekskill, N. Y.; Dr. Richard Rathbun, assistant secretary, Dr. Cyrus Adler, curator, Dr. Otis S. Mason, curator of Ethnology, all of the Smithsonian Institution; Dr. S. W. Stratton, chief of the Bureau of Standards; Miss E. R. Scidmore; Gilbert H. Grosvenor, editor, National Geographic Magazine; Hon. William Eleroy Curtis; his Excellency Enrique C. Creel, Embajador de Mexico, and James T. Archbold, war correspondent, all of Washington, D. C.; Prof. W. P. Wilson, director Philadelphia Commercial Museum, Clarence B. Moore, Academy of Natural Sciences, and T. Louis Comparette, curator Numismatic Collection, U. S. Mint, all of Philadelphia; Prof. Henry Montgomery, University of Toronto, Toronto, Canada; Dr. Warren K. Moorehead, archæologist, Andover, Mass.; H. D. Story, and Theo. M. Davis, curators of the Boston Museum of Fine Arts, Boston, Mass.; Miss Mathilde Laigle of Wellesley College; Prof. F. W. Putnam and Alfred M. Tozzer, Peabody Museum of Archæology, Cambridge, Mass.; Prof. Edward S. Morse, Salem, Mass.; Dr. Hiram Bingham, Yale University; W. E. Frost, Providence, R. I.; Dr. Edgar J. Banks, University of Chicago, Chicago, Ill.; Hon. F. J. V. Skiff, director, for several photographs of museum material, and Dr. George A. Dorsey, curator of Anthropology of the Field Columbian Museum; Dr. A. R. Crook, curator of the Museum of Natural History, Springfield, Ill.; Richard Hermann, director Hermann Museum, Dubuque, Ia.; Charles Russell Orcutt, San Diego, Cal.; David I. Bushnell, St. Louis, Mo.; Dr. J. H. Stanton, Prairie du Chien, Wis.; Joe Gassett, Clinton, Tenn.; Prof. Wm. C. Mills, University of Ohio, Columbus, O., for material covering the new Ohio mound discoveries; Mrs. Marie Robinson Wright, author and South American traveler, New York City; Miss Helen Woolley of Judson College, Alabama; Prof. Dr. Eugene Hussak, Rio Janeiro; Hon. George E. Anderson, Consul General of the United States, Rio de Janeiro, Brazil; Señor L. E. Bonilla, Consul General of Colombia; Madam Zelia Nuttall, Coyoacan, Mexico; Prof. Waldstein, University of Cambridge, Cambridge, England; Dr. O. F. Bell, assistant keeper Ashmolean Museum, Oxford; Dr. Stephen W. Bushell, Chinese authority; Lady Christopher Johnston, Dr. William F. Petrie, University College, Dr. Charles Hercules Read, director of the department of Archæology, British Museum, for illustrations and data; Cyril Davenport, antiquarian writer of the British Museum, for the illustration of the English crown, and crown information; to Sir John Evans, late veteran archæologist and writer; Thomas Tyrer, chemist, W. Talbot Ready, A. W. Feaveryear, E. Alfred Jones, author on metal-work, Edwin W. Streeter, all of London, England;