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  1. Soil survey of the Redding area, California /
    By: Lapham, Macy H. (Macy Harvey), - Holmes, L. C. - United States. Bureau of Soils.
    Publication info: Washington :U.S. G.P.O.,1908.
    Holding Institution: University of California Libraries (archive.org)
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  2. Soil survey of the Solomonsville area, Arizona,
    By: Lapham, Macy H. (Macy Harvey), - Neill, N. P.
    Publication info: Washington :Govt. Print. Office,1904.
    Holding Institution: University of California Libraries (archive.org)
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