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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Edgren, James W., - Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
    Publication info: [Portland, Or.], Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture, Forest Service, 1970
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Douglas fir  Frost damage  Growth  Seedlings  Trees  Washington (State)  
  2. By: Childs, V. C., - Mackey, John C., - United States. Agricultural Marketing Service.
    Publication info: Austin, Texas, United States Department of Agriculture, Agricultural Marketing Service, 1955
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Florida  Frost damage  Plants  Produce trade  Texas  
  3. By: Peeler, Kevin C. - DeBell, Dean S. - Pacific Northwest Research Station (Portland, Or.)
    Publication info: [Portland, Or.?], U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, [1987]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Frost damage  Growth  Oregon  Red alder  Trees  Washington (State)