This site is located at Seki-machi, Nerima-ku, Tokyo. (Fig. 1, mark ×)
Musashino upland where the site is situated is about 55 metres above the sealevel and forms two river terraces along the river Syakujii which runs along the heights to the East. The upper terrace is the Musashino plane and the lower one is the Tachikawa plane. The difference in height between the terraces is about 6 metres, and Tachikawa plane is about 1 metre higher than the alluvial plane. Burnt pebbles, stone flakes and chips are scattered over the upper part of the slope between Musashino plane and the Tachikawa plane. (Fig. 3)
The stratum consists of Layers 1-7 (Fig. 2) and the relics have been excavated from Layers I-V (Fig. 2). The number of the relics except pebbles excavated from each layer is shown in the list in the text. The blade technique is absent in the industry.
The following are the typical relics found in each layer : Layer I Fig. 4, No. 14. Layer II Fig. 4, Nos. 1-13, 15-17. Layer III Fig. 5, Nos. 19-22. Layer IV Fig. 5, Nos. 23, 24. Layer V Fig. 5, Nos. 25, 26, 27-35.
A piece of charcoal found in Layer II has been identified as a chestnut. Fig. 4, No. 1 is a knife-like tool; No. 8 is a tool like the "Kiridashi" knife; Fig. 5, Nos. 23 and 24 are "point"-like tools. The stratigraphical analysis of the relics shows that the knife-like tool and the tool like the "Kiridashi" knife precede the "point"-like tool.
So far as the present writer's investigation is concerned, not any earthenware has been found in Layer IV. The certainty, however, that here is no earthenware to be assoiated with Layer IV must depend upon further investigation of the site.
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