THE ORIENTAL INSTITUTE OF THE UNIVERSITY OF CHICAGO ORIENTAL INSTITUTE COMMUNICATIONS • NO. 23 EXCAVATIONS AT NIPPUR TWELFTH SEASON By McGUIRE GIBSON, JUDITH A. FRANKE, MIGUEL CIVIL, MICHAEL L. BATES, JOACHIM BOESSNECK, KARL W. BUTZER, and TED A. RATHBUN and ELIZABETH FRICK MALLIN THE ORIENTAL INSTITUTE • CHICAGO • ILLINOIS courtesy of Stefan Heidemann