First Report of the Curator of the Archæological Museum of the Ohio State University. Also Preliminary Exploration of Ohio Caves. 17 pp.; a table. Columbus, 1895.
Fort Ancient. 129 pp. 37 full-page plates; large folding map. Cincinnati, 1889. Robert Clarke Co.
Fort Ancient, Description of. 16 pp. 12 figures and large map. Vol. IV (1896) of the Ohio State Archæological and Historical Society Report. Columbus, Ohio.
Fort Ancient, the Great Prehistoric Earth Work of Warren County, Ohio. 166 pp. Pt. II, Bulletin IV, Department of Archæology, Phillips Academy, Andover, Mass. 1908.
Ghost Dance, The. 6 illustrated articles appearing in the Illustrated American. New York, January-March, 1891.
Gravel Kame Burials in Ohio. American Association for the Advancement of Science Report. 1902.
Hopewell Group, The. About 60 pages. 70 figures. Continued from May, 1897, to February, 1898, in the American Archæologist. Columbus, O.
Indian Tribes of Ohio, The. 109 pp. Vol. VII (1898) of the Ohio Archæological and Historical Society Report. Columbus, Ohio.
Metzger Mound, The. 10 pp. 4 figures. Proceedings of the Academy of Natural Sciences of Philadelphia. 1894.
Modern and Prehistoric Village Sites in Ohio, compared. American Association for the Advancement of Science Report. 1894.