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  1. By: Morris, Earl Halstead,
    Publication info: 1928
    Holding Institution: American Museum of Natural History Library
  2. By: Morris, Earl Halstead,
    Publication info: 1919
    Holding Institution: American Museum of Natural History Library
  3. By: Morris, Earl Halstead,
    Publication info: 1927
    Holding Institution: American Museum of Natural History Library
  4. By: Morris, Earl Halstead,
    Publication info: 1924
    Holding Institution: American Museum of Natural History Library
  5. By: Morris, Earl Halstead,
    Publication info: 1921
    Holding Institution: American Museum of Natural History Library
  6. By: Morris, Earl Halstead,
    Publication info: 1928
    Holding Institution: American Museum of Natural History Library
  7. By: Morris, Earl Halstead, - Charlot, Jean, - Morris, Ann Axtell,
    Publication info: [Washington], Carnegie Institution of Washington, 1931
    Holding Institution: University Library, University of Illinois Urbana Champaign