. Bulletin. Ethnology. MEGGERS AND EVANS] ARCHEOLOGY AT MOUTH OF AMAZON 463 is a typical Arua ax, this seems likely to be true. The stone is fine-grained, pale, gray-green diorite. Outline is trianguloid, narrowing from 7 cm. at the convex blade to a rounded butt. Length is 10 cm., thickness cm. The surfaces are not well smoothed, so that some pecking marks and concoidal cleavage fractures have not been erased. The best finishing is on the blade. The butt end was considerably battered from use as a hammer. C-13 ALTA PIRATUBA The Rio Piratuba is a large tributary of the east bank of the Rio


. Bulletin. Ethnology. MEGGERS AND EVANS] ARCHEOLOGY AT MOUTH OF AMAZON 463 is a typical Arua ax, this seems likely to be true. The stone is fine-grained, pale, gray-green diorite. Outline is trianguloid, narrowing from 7 cm. at the convex blade to a rounded butt. Length is 10 cm., thickness cm. The surfaces are not well smoothed, so that some pecking marks and concoidal cleavage fractures have not been erased. The best finishing is on the blade. The butt end was considerably battered from use as a hammer. C-13 ALTA PIRATUBA The Rio Piratuba is a large tributary of the east bank of the Rio Goiabal. Site C-13 is about 3 km. from the south shore of the south fork (fig. 151). The entire region is covered with forest with. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Smithsonian Institution. Bureau of American Ethnology. Washington : G. P. O.


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