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  1. By: Colman, Norman J. (Norman Jay), - United States. Division of Forestry.
    Publication info: Washington, D.C, U. S. Forestry Division, 1887
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  2. By: Colman, Norman J. (Norman Jay), - United States. Department of Agriculture.
    Publication info: Washington, D.C, United States Department of Agriculture, December 1887
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  1. By: Colman, Norman J. (Norman Jay),
    Type: Article
    In: Botanical gazette
    Volume: 11
    Issue: 11
    Date: 1886
    Page Range: 316--317
    Publication Info: Hanover, Ind, [publisher not identified], 1876-1991