490 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 112 



parallel to the edge of the roadcut and uncovered layer by layer down 

 to hardpan. Layer 5 was removed in two equal increments, and all 

 material found was kept separate for statistical comparisons. The 

 blackness of the soil in layer 5 precluded our finding pit outlines until 

 hardpan was reached. Here two small pits were easily detected. 

 Pit 1 was 12 inches in diameter and extended 14 inches into the subsoil. 

 It contained fire-cracked stones and a few sherds of Nopporo type. 

 Pit 2 was 17 inches in diameter and 12 inches deep. This pit contained 

 pottery of two types (Yoichi and Nopporo), fire-cracked stones, two 

 broken and incomplete celts, two chipped scrapers, and charcoal, 

 a sample of which was collected for Carbon-14 dating. The test by 

 Dr. Meyer Kubin of the Low Level Radiation Laboratory of the U.S. 

 Geological Survey yielded an age of 3230 ±160 years (W-322). 



The lower half of layer 5 yielded pottery of both Yoichi and Nopporo 

 types, while the upper half yielded only Nopporo type sherds. No 

 difference could be detected in the types of stone implements from 

 the two zones. No postmolds were found in the excavated area, 

 though they were carefully sought. 



Artifacts found include sherds, chipped and polished stone imple- 

 ments, and one ornament made from a naturally perforated pebble of 

 dark green material (plate 5c). The polished stone implements are 

 limited to three broken and incomplete celts, one of which shows the 

 scars of cutting on one side and illustrates the method used to detach 

 the piece from a larger source. One lump of pumice has a groove on 

 one side, the groove indicating use as a smoothing tool, possibly for 

 dressing arrow shafts (plate 56). 



Chipped implements are arrowpoints, drills, scrapers, and knives. 

 The material used is usually obsidian, though flint was also used. 

 Arrowpoints (plate 5e-f) are small, either triangular, or with a small 

 pointed tang. The drills and scrapers (plate 5d) are flakes and spalls, 

 sometimes with only the slightest amount of secondary chipping. 

 The knives are either large flakes with secondary chipping, or are 

 specially made blades with a notched tang at one corner or on one 

 end (plate 5a). 



The pottery of Yoichi type (plate Qa-b) is similar to that from the 

 Taniguchi Site. The examples found show oral diameters of from 8 

 to 15 inches, and wall thicknesses of from % to % inches. Designs are 

 limited to run thickening and the addition of small lugs at rim level, 

 but extend above the rim to form small crenelations (plate 6c). 



The majority of the ware from the Uenae Site is the Nopporo type 

 (plate 6, c-e and g-h), which Groot (1951, p. 62) calls "Nohoro" and 

 equates with the Omori type of the Tokyo region. According to 

 Groot (p. 65), the Nohoro type is the probable ancestor of the Kame- 



