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  1. By: Kempton, J. H. (James Howard),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1921
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  2. By: Kempton, J. H. (James Howard),
    Publication info: Washington, Govt. print. off, 1913
    Holding Institution: Library of Congress
  3. By: Kempton, J. H. (James Howard),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1921
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  4. By: Kempton, J. H. (James Howard),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1919
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  5. By: United States. Bureau of Plant Industry. - Collins, G. N. (Guy N.), - Cook, O. F. (Orator Fuller), - Hastings, Stephen H. (Stephen Harold), - Kellerman, Karl F. - Kempton, J. H. (James Howard),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, Bureau of Plant Industry, 1913
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  6. By: Collins, G. N. (Guy N.), - Kempton, J. H. (James Howard),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1927
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  1. By: Kempton, J. H. (James Howard),
    Type: Article
    In: Journal of the Washington Academy of Sciences
    Volume: 32
    Date: 1942
    Page Range: 338--341
    Publication Info: Washington [etc Washington Academy of Sciences]
  2. By: Kempton, J. H. (James Howard),
    Type: Article
    In: Journal of the Washington Academy of Sciences
    Volume: 31
    Date: 1941
    Page Range: 261--263
    Publication Info: Washington [etc Washington Academy of Sciences]