existing graves, perhaps belonging to one family. No burial has yet been found in the sixth tumulus, though the entire central area has been cleared to hardpan. Here, as in the case of the two Phrygian burials, the grave was evidently not at the center of the tumulus. If the grave in the greatest of the tumuli (Figures i to 3) is likewise hidden away off-center, the technical problem of how to go about digging it in the future becomes formidable; perhaps the repose of the important personage who lies beneath will perforce remain undisturbed. Fig. 7. Yassihuyuk-Gordion. A section of a typical Phrygian tumulus burial of the seventh century b.c. A deep rectangular pit was dug in the ground; then a chamber of wooden logs was constructed in it and floored with stone slabs. Next, the space between the outside of the wooden chamber and the sides of the pit was filled with stones. After the burial had been made, the chamber was roofed with logs and a great mass of large stones was heaped over it to a height of nearly two meters. Finally, earth was piled over all to make a conical tumulus or grave mound as a monument over the burial. Fig. 8. The heap of stones over the burial. The position of the grave was betrayed by a hollow sinking near the center, where the weight of the stones had crushed in th e wooden cover over the burial and the stones had settled. 200 ARCHAEOLOGY