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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Ramser, C. E. (Charles Ernest),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1917
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Soil conservation  Terracing  
  2. By: United States. Soil Conservation Service.
    Publication info: Washington, D.C, U.S. G.P.O, 1943
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Grasses  Irrigation  Terracing