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  1. By: Billings, John S. (John Shaw), - Mitchell, S. Weir (Silas Weir), - Bergey, D. H. (David Hendricks),
    Publication info: Washington, Smithsonian Institution, 1895
    Holding Institution: Columbia University Libraries
  2. By: Mitchell, S. Weir (Silas Weir),
    Holding Institution: Missouri Botanical Garden, Peter H. Raven Library
    BHL Collections: Engelmann Papers, Missouri Botanical Garden
  3. By: Mitchell, S. Weir (Silas Weir),
    Publication info: New York, Moorhead, Simpson & Bond, 1868
    Holding Institution: Francis A. Countway Library of Medicine
  4. By: Mitchell, S. Weir (Silas Weir),
    Publication info: [Philadelphia], 1868
    Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
  5. By: Mitchell, S. Weir (Silas Weir),
    Publication info: New York The Century Co 1889
    Holding Institution: National Library of Medicine
  6. By: Mitchell, S. Weir (Silas Weir),
    Publication info: Washington, Smithsonian Institution, 1860
    Holding Institution: Columbia University Libraries
  7. By: Mitchell, S. Weir (Silas Weir), - Reichert, Edward Tyson,
    Publication info: Washington, Published by the Smithsonian Institution, 1896
    Holding Institution: University of California Libraries