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  1. By: Palmer, R. C. (Robert Conrad),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1917
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Distillation, Destructive  Hardwoods
  2. By: Hawley, L. F. (Lee Fred), - Palmer, R. C. (Robert Conrad),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1914
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Distillation, Destructive  Forest products  Hardwoods