Results for "Pennsylvania Railroad"

     
    Showing results 37 - 48 of 131 for Pennsylvania Railroad

    1. Smithsonian Crowdsourcing Since 1849!

      • Date: April 14, 2011
      • Description: Access the official records of the Smithsonian Institution and learn about its history, key events, people, and research.

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    3. Webpage

      Baird's Dream: Introduction

      • Date: June 20, 2013
      • Description: The introduction to the history of the Arts & Industries Building.

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    5. Finding Aid

      SIA Acc. 20-134, National Museum of American History (U.S.) Division of the History of Technology, Curatorial Records, 1904-2005

      • Date: 1904 1904-2005
      • Creator: National Museum of American History. Division of the History of Technology
      • Creator: Smithsonian Institution Archives

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    7. Finding Aid

      SIA Acc. 03-145, Hirshhorn Museum and Sculpture Garden Office of the Registrar, Loan Records, 1974-1999

      • Date: 1974 1974-1999
      • Creator: Hirshhorn Museum and Sculpture Garden. Office of the Registrar
      • Creator: Smithsonian Institution Archives

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    9. Finding Aid

      SIA Acc. 94-092, National Museum of American History (U.S.) Office of the Assistant Director for Academic Programs, Program Records, c. 1964-1969, 1978-1994

      • Date: 1964 1964-1994 c 1964-1969, 1978-1994
      • Creator: National Museum of American History. Office of the Assistant Director for Academic Programs
      • Creator: Smithsonian Institution Archives

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    11. Finding Aid

      SIA Acc. 17-290, Smithsonian Early Enrichment Center Office of the Director, Professional Development Records, 1992-2014

      • Date: 1992 1992-2014
      • Creator: Smithsonian Early Enrichment Center. Office of the Director
      • Creator: Smithsonian Institution Archives

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    13. Finding Aid

      SIA RU007062, Meek, F. B (Fielding Bradford) 1817-1876, Fielding B. Meek Papers, 1843-1877 and undated

      • Date: 1843 1843-1877 1843-1877 and undated
      • Creator: Meek, F. B. (Fielding Bradford), 1817-1876.
      • Creator: Smithsonian Institution Archives

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    15. Finding Aid

      SIA Acc. 15-217, Joseph Henry Papers Project, Depository Files, 1960-2008

      • Date: 1960 1960-2008
      • Creator: Joseph Henry Papers Project
      • Creator: Smithsonian Institution Archives

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    17. Samuel Pierpont Langley and the Personal Equation Problem

      • Date: April 12, 2018
      • Description: The term “personal equation” came into use in the 19th century as scientists found that observers have inherent biases: some anticipate events, and some report events after they have occurred. Recognition of the problem led to a spate of personal equation instruments: some measured biases of this sort, and some reduced the effect of personal errors. Most of these

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    19. Finding Aid

      SIA RU000502, Smithsonian Institution International Exchange Service, Records, circa 1908-1971

      • Date: 1908 1908-1971 circa 1908-1971
      • Creator: Smithsonian Institution. International Exchange Service
      • Creator: Smithsonian Institution Archives

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    21. Finding Aid

      SIA Acc. 10-188, Ulrich, E. O (Edward Oscar) 1857-1944, Edward Oscar Ulrich Papers, 1908-1944

      • Date: 1908 1908-1944
      • Creator: Ulrich, E. O. (Edward Oscar), 1857-1944
      • Creator: Smithsonian Institution Archives

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    23. Webpage

      This Day in SI History - august | Smithsonian Institution Archives

      • Description: Access the official records of the Smithsonian Institution and learn about its history, key events, people, and research.

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    Showing results 37 - 48 of 131 for Pennsylvania Railroad

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