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