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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Sheets, E. W.
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1920
    Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
  2. By: Sheets, E. W. - Tuckwiller, Ross Homan,
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1926
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  3. By: Sheets, E. W. - Tuckwiller, Ross Homan,
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1922
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  4. By: Sheets, E. W. - Tuckwiller, Ross Homan,
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  5. By: Sheets, E. W. - Tuckwiller, Ross Homan,
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1922
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library