Smithsonian miscellaneous collections . \ * Plate 7 Upper: The buried channel as exposed at section 16. Here Late Bonitian potsherds werefound at a depth of 13 feet 10 inches. (Photograph by O. C. Havens, 1925.) Lower: The author stands below a cross section of the post-Bonito channel at section 4 nearthe southeast corner of Pueblo del Arroyo. (Photograph by O. C. Havens, 1924.)

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Keywords: ., bookcentury1800, bookdecade1860, bookidsmiths, booksubjectscience