Annual report of the Board of Regents of the Smithsonian Institution : showing the operations, expenditure and condition of the institution for the year ended June 30, 1955 / Smithsonian Institution. Smithsonian Institution. Museums United States History. Science United States History. Q11 .U5 1980 508 ANN Includes bibliographical references and index. Washington : Government. Printing Office, 1956. 1956. 1956 Text ix, 537 p. : eng United States United States