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  1. By: Van der Vries, John N.
    Type: Article
    In: The Kansas University science bulletin
    Volume: 1
    Issue: 12
    Date: 1902-11
    Page Range: 305--323
    Publication Info: Lawrence, Kan, The University, 1902-1924
  2. By: Van der Vries, John N.
    Type: Article
    In: The Kansas University science bulletin
    Volume: 2
    Issue: 1
    Date: 1903-06
    Page Range: 3--18
    Publication Info: Lawrence, Kan, The University, 1902-1924