Annual report of the Board of Regents of the Smithsonian Institution . Km Eolian deposits.() Gray clay withsuccinea. I-aniinated clay. -a c ?a tA o t^ a a a <u J o C s tj 0) fe o hJ Gray clay. Potters earth. Fluvial sands. Fluvial sands. Flinty layer. Sand and pottersearth. Flinty layer.

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Keywords: ., bookauthorsmithsonianinstitutio, bookcentury1800, bookdecade1840