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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Roth, L E - Bynum, H. H. - Nelson, Earl E.
    Publication info: [Washington, U.S. Govt. Print. Off.], 1972
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  1. By: Powers, E L - Ehret, C F - Roth, L E
    Type: Article
    In: The Biological bulletin
    Volume: 108
    Date: 1955-04-01
    Page Range: 182--195
    Publication Info: Woods Hole, Mass Marine Biological Laboratory