. Carnegie Institution of Washington publication. . 152 pr pr m exo pr 154 exv : d 157 \m 158 -^ a §- m pr sv P ph v-oe °g 155 #=*£ I oe 'ft 158 cp b % og ft o ^ w oe pr- pr g <H&.f-' ph vd sr_ I si) ; */ â ;.â¦;⢠'-â .'â¢â "â¢â o £7 / ^exp - i og i exv. 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, bookyear1910