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  1. By: Carnegie Institution of Washington. Department of Meridian Astrometry. - Boss, Lewis, - Dudley Observatory.
    Publication info: Washington, D.C, Carnegie institution of Washington, 1910
    Holding Institution: University Library, University of Illinois Urbana Champaign
  2. By: Carnegie Institution of Washington. Department of Meridian Astrometry. - Boss, Lewis, - Albany, Dudley Observatory.
    Publication info: Washington, 1928
    Holding Institution: University Library, University of Illinois Urbana Champaign