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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Scobey, Fred C. (Frederick Charles), - Allen, Kenneth (Sanitary engineer)
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Irrigation water  Pipe, Concrete  Water-pipes
  2. By: Stanley, F. W. (Fred William), - Fortier, Samuel,
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1921
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Irrigation  Pipe, Concrete  Water-pipes