. Carnegie Institution of Washington publication. Plate 7 m .Ij:., : *- â :''§: *« Wf ^ jgElffiK "ii 'MCAIXqfrvv^ a »i^7 > jfl 3i ^^>'. 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 Carnegie Institution of Washington. Washington, Carnegie Institution of Washington

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Keywords: ., bookauthorcarnegie, bookcentury1900, bookdecade1910, bookyear1913