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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Raber, Oran,
    Edition: Rev. ed.
    Publication info: New York, The Macmillan Co, 1938
    Holding Institution: MBLWHOI Library
  2. By: Raber, Oran,
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1937
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  1. By: Raber, Oran,
    Type: Article
    In: American journal of botany
    Volume: 8
    Issue: 9
    Date: 1921-11
    Page Range: 464--470
    Publication Info: Lancaster, Pa, Published in cooperation with the Botanical Society of America by the Brooklyn Botanic Gardens, 1914-
  2. By: Raber, Oran,
    Type: Article
    In: American journal of botany
    Volume: 8
    Issue: 8
    Date: 1921-10
    Page Range: 382--385
    Publication Info: Lancaster, Pa, Published in cooperation with the Botanical Society of America by the Brooklyn Botanic Gardens, 1914-
  3. By: Raber, Oran,
    Type: Article
    In: American journal of botany
    Volume: 8
    Issue: 7
    Date: 1921-07
    Page Range: 366--368
    Publication Info: Lancaster, Pa, Published in cooperation with the Botanical Society of America by the Brooklyn Botanic Gardens, 1914-