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  1. By: Ruthven, Alexander Grant, - Thompson, Crystal - Gaige, Helen Thompson - Smith, Harlan Ingersoll,
    Publication info: Lansing, Mich, Wynkoop Hallenbeck Crawford, State Printers, 1912
    Holding Institution: NCSU Libraries
  1. By: Gaige, Helen Thompson
    Type: Article
    In: Occasional papers of the Museum of Zoology, University of Michigan
    Volume: 17
    Date: 1915-12-15
    Page Range: 1--5
    Publication Info: Ann Arbor, Mich, University of Michigan, 1913-
  2. By: Gaige, Helen Thompson
    Type: Article
    In: Proceedings of the Biological Society of Washington
    Volume: 26
    Date: 1913
    Page Range: 53--55
    Publication Info: Washington, Biological Society of Washington,
  3. By: Ruthven, Alexander Grant, - Gaige, Helen Thompson
    Type: Article
    In: Occasional papers of the Museum of Zoology, University of Michigan
    Volume: 147
    Date: 1924
    Page Range: 1--3
    Publication Info: Ann Arbor, Mich, University of Michigan, 1913-
  4. By: Ruthven, Alexander Grant, - Gaige, Helen Thompson
    Type: Article
    In: Occasional papers of the Museum of Zoology, University of Michigan
    Volume: 8
    Date: 1915
    Page Range: 1--33
    Publication Info: Ann Arbor, Mich, University of Michigan, 1913-