Excavations at the Celtic settlement of Sopron-Krautacker (western Hungary) make it possible to form an overall view on the local practice of pottery manufacture. Study of the soil conditions has established that the source of raw material is the nearly calcium carbonatefree upper layer of the local soil resulting from a leaching process. By the various analytical methods used (x-ray diffraction analysis, x-ray fluorescence spectroscopy, and thermal analysis) composition of the pottery has been determined, and it has been shown that the vessels were fired at 600-700°C. See also AATA 18-550 for related study. -- AATA