Results for "Smithsonian Astrophysical Observatory. Assistant Director (Administration)"

 
Showing results 1 - 2 of 2 for Smithsonian Astrophysical Observatory. Assistant Director (Administration)
  1. SI History Chronology

    S. P. Langley Named Director of Observatory

    • Date: March 2, 1890

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  3. SI History Chronology

    Samuel Langley Elected Third Secretary

    • Date: November 18, 1887

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Showing results 1 - 2 of 2 for Smithsonian Astrophysical Observatory. Assistant Director (Administration)