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  1. By: Silberglied, Robert E. (Robert Elliot),
    Publication info: 1970
    Holding Institution: Smithsonian Institution Archives
    Subjects: Black-and-white photographs  Charts (graphic documents)  Colon, Archipielago de  Ecuador  Entomology  Espanola, Isla  Fernandina, Isla  Field notes  Genovesa, Isla  Herpetology  Isabela, Isla  Maps  Marchena, Isla  Pinzon, Isla  Santa Maria, Isla  
    BHL Collections: Smithsonian Field Books collection
  2. By: Silberglied, Robert E. (Robert Elliot),
    Publication info: 1967-1971
    Holding Institution: Smithsonian Institution Archives
    Subjects: Colon, Archipielago de  Ecuador  Entomology  Espanola, Isla  Fernandina, Isla  Field notes  Genovesa, Isla  Isabela, Isla  Maps  Marchena, Isla  Pinzon, Isla  Santa Maria, Isla  
    BHL Collections: Smithsonian Field Books collection