stratigraphical

— The report of the excavations at this site was published later in 1976 (Shan-tung-sheng, Tung-hai-yü, and Jih-chao 1976); but prior to the availability of stratigraphical evidence, it seemed fully apparent that the pottery associated with the Jih-chao and Wei-fang areas—where we meet for the first time a high percentage of black wares turned on a fast wheel—represented a phase subsequent to that at Hsi-hsia-hou.