. Chapters in the prehistory of eastern Arizona. 36 PREHISTORY OF EASTERN ARIZONA, I 31 cm. in diameter, 25 and 33 cm. deep; one was recessed in the east wall, the other was next to the west wall. The two earlier ones were 28 and 35 cm. in diameter, 48 and 50 cm. deep. Ventilator (fig. 15).—In the center of the southeast wall; crude rubble masonry based at floor level reduced the width of a former passage to an "antechamber" (Room 3) from 55 cm. down to 20 cm., and in height down to 30 cm. It had a stone slab lintel and masonry sides. It was closed with a stone slab "
. Chapters in the prehistory of eastern Arizona. 36 PREHISTORY OF EASTERN ARIZONA, I 31 cm. in diameter, 25 and 33 cm. deep; one was recessed in the east wall, the other was next to the west wall. The two earlier ones were 28 and 35 cm. in diameter, 48 and 50 cm. deep. Ventilator (fig. 15).—In the center of the southeast wall; crude rubble masonry based at floor level reduced the width of a former passage to an "antechamber" (Room 3) from 55 cm. down to 20 cm., and in height down to 30 cm. It had a stone slab lintel and masonry sides. It was closed with a stone slab ";. Fig. 18. Room 1, Chilcott Site 3, showing basalt boulder walls and general shape of structure. Arrow 50 cm. long points magnetic north; meter stick in 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 Martin, Paul S. (Paul Sidney), 1899-1974; Rinaldo, John B. (John Beach), 1912- joint author; Longacre, William A. , 1937- joint author; Cronin, Constance joint author; Freeman, Leslie G. joint author; Schoenwetter, James joint author; Ross, Lillian A. editor. [Chicago] Chicago Natural History Museum
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