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  1. By: Coquillett, D. W. (Daniel William),
    Publication info: Washington, U.S. Dept. of Agriculture, 1895
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Canker-worms  Geometridae  
  2. By: Porter, B. A. (Bennet Allen), - Alden, Charles H. (Charles Harold),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1924
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Canker-worms  Diseases and pests  Fruit  
  3. By: Munson, W. M. (Welton Marks),
    Publication info: Orono, Maine Agricultural Experiment Station, 1903
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Canker-worms  Dandelions  Ginseng  Maine  Weeds  
  4. By: Packard, A. S. (Alpheus Spring), - Riley, Charles V. (Charles Valentine), - Thomas, Cyrus, - United States Entomological Commission. - United States. Congress (47th, 2nd session : 1882-1883). House - United States. Department of Agriculture.
    Publication info: Washington, G.P.O, 1883
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Anabrus simplex  Armyworms  Canker-worms  Classification  Forest insects  Hessian fly  Orthoptera  Rocky Mountain locust