Iowa archaeological reports 1934 to 1939. Volume I, Reconnoissance survey and excavation of Indian mound groups and cementeries in Valley of Upper Iowa and Mississippi River, 1934
Madison, Wisconsin: Society for American Archaeology and the University of Wisconsin Press
Summary
Originally published on microcard as part of a a ten-volume set including v. 1-6, 8, 10-12 of Orr's original work, now housed at the Effigy Mounds National Monument.