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  1. By: Darwin, Charles, - Henslow, J. S. (John Stevens),
    Publication info: 1838 November 3
    Holding Institution: Smithsonian Libraries and Archives
    Subjects: Animals  Classification  Galapagos Islands  Manuscripts (documents)  Plants
  2. By: Wallace, Alfred Russel, - Besant, Annie, - Carruthers, William, - Strang, William, - Swinton, John, - Thompson, Silvanus P. (Silvanus Phillips), - Warming, Eugenius,
    Publication info: 1874-1910
    Holding Institution: Smithsonian Libraries and Archives
    Subjects: History  Manuscripts (documents)  Science  Sources  Technology